20 Vocabulary Words for Children: Saving and Interest

Top 20 Vocabulary Words for Children | Vol 71: Understand Saving, Interest and Everyday Financial Choices | Suggested ages 10–13

Did you know that five percent simple interest and five percent compound interest can produce different totals after two years? The difference begins when interest is calculated on past interest as well as the original amount. These 20 vocabulary words for children help parents explain saving goals, deposits, withdrawals, principal, interest rates and financial trade-offs without recommending real financial products.

Use an invented account starting with 100 credits at a hypothetical five-percent annual rate, with no fees, tax or extra deposits. At the end of two years, simple interest gives 110 credits while annually compounded interest gives 110.25 credits under these assumptions. Children can verify every step with paper arithmetic; no real account, cash transfer or personal bank information is required.

What should the child understand before learning the terms?

Financial choices involve money received, spending decisions, savings balances, goals and the effects of time. A budget organises expected income and expenses. A deposit adds funds to an account or balance; a withdrawal removes them. Principal is the starting amount on which interest is initially calculated, while the interest rate describes the percentage applied over a specified time interval. Simple interest is calculated on the original principal, and compound interest includes accumulated interest under an agreed compounding schedule. Interest earned in a real savings product depends on its terms, while inflation can reduce purchasing power. Borrowed money can also attract compounding charges; the basic classroom example is not a guarantee of returns.

Five-minute parent starter

Give the word a job: choose a labelled paper diagram or fictional calculation with one clear question. Name what the learner must decide or explain.
Choose three to five active terms: read their meanings and say a natural phrase, then ask your child to explain one term without looking at the definition.
Make one reliable sentence: let the child answer first. Add a detail about what happened, what changed, which quantity was calculated or where an object belongs.
Compare a near neighbour: ask why a tempting related word would change the meaning and repair the smallest mistake before making the sentence longer.
Return with an unfamiliar scene: cover the glossary tomorrow. Ask for an independent phrase and sentence in a different context rather than a memorised retelling.

Useful progress: the child recognises the term, recalls an appropriate phrase, uses it in a complete accurate thought and transfers that meaning after a delay. Three correct phrases used independently can be more meaningful than twenty copied definitions. Vocabulary should enable precise explanations, not create a competition for the largest number of unfamiliar terms.

What to do when a child hesitates

If the meaning is recognised but the wording feels unnatural, practise a small phrase first. If the sentence is fluent but the scientific classification or arithmetic is wrong, repair the underlying relationship. If the child can repeat the original model but cannot use it elsewhere, change the example and practise retrieval. These are distinct learning difficulties and each responds to a more targeted task than rewriting the entire answer for the child.

Why a model needs limits

The stories use fictional people, symbolic units or drawings. Illustrations of astronomical scale are often compressed, and numerical interest calculations depend on stated assumptions. Do not convert the paper exercise into real solar viewing or a financial offer. A correct explanation includes not only what the example establishes but also what it cannot guarantee.

Moving from definition to conversation and writing

Start with one word in a natural phrase and say why it is appropriate. Then ask the child to give one short sentence for another listener, followed by an optional second sentence explaining a condition. Read aloud to check coherence. A longer statement is only an improvement when each additional word preserves accuracy and purpose.

Twenty vocabulary words with meanings, natural phrases and original examples

Four groups of five organise the terms by function. Each entry supplies a meaning within the present topic and a word partnership to rehearse. Some terms have more technical meanings in specialist subjects, but one secure sense is the better starting point. The word table is a reference, not a list that must be memorised all at once.

Plan income, spending and savings — Words 1–5

Five connected vocabulary words with meaning, phrase and natural example
Word	Meaning for this theme	Natural phrase	Example sentence
1. income	Money or other payment received during a defined period	monthly income	The fictional character recorded their allowance as income.
2. expense	An amount spent or owed for goods or services	planned expense	Buying a notebook was one planned expense.
3. budget	A plan allocating expected resources to spending and saving	simple budget	The budget separated income, expenses and saving.
4. savings	Money put aside rather than immediately spent	savings balance	The character kept part of their allowance as savings.
5. balance	An amount remaining in an account or after stated additions and subtractions	account balance	The imaginary balance began at 100 credits.

Parent’s one-minute pause: Cover the model sentence and ask the child to create an original one. They should choose a natural phrase, not merely recite the definition. If a term is confused with its neighbour, repair that distinction before expanding the sentence.

Describe the account and its interest terms — Words 6–10

Five connected vocabulary words with meaning, phrase and natural example
Word	Meaning for this theme	Natural phrase	Example sentence
6. deposit	Funds added to a suitable account or stored balance	account deposit	A deposit would increase the recorded savings balance.
7. withdrawal	Funds taken out of an account or stored balance	cash withdrawal	A withdrawal would reduce the balance under the example.
8. principal	The original amount on which a borrowing or saving interest calculation is based	original principal	The principal was 100 imaginary credits.
9. interest	Money paid or earned for the use of money over a period	interest earned	The first year’s hypothetical interest was five credits.
10. interest rate	The rate of interest applied to a defined amount over a specified period	annual interest rate	The toy example used a five-percent annual interest rate.

Compare simple and compound calculations — Words 11–15

Five connected vocabulary words with meaning, phrase and natural example
Word	Meaning for this theme	Natural phrase	Example sentence
11. simple interest	Interest calculated on the original principal rather than compounded earlier interest	simple interest calculation	Simple interest on 100 credits at five percent was five credits each year.
12. compound interest	Interest calculated on a balance that includes prior accumulated interest at stated compounding intervals	compound interest growth	Annual compound interest gave 110.25 credits after two years.
13. compounding	Adding earned interest to the interest-bearing balance according to a defined schedule	annual compounding	The example used compounding once at each year’s end.
14. annual	Relating to a period of one year	annual rate	The five-percent rate was specified as annual.
15. time horizon	The length of time relevant to a financial goal or decision	two-year time horizon	The calculation used a two-year time horizon.

Consider time, risk and practical goals — Words 16–20

Five connected vocabulary words with meaning, phrase and natural example
Word	Meaning for this theme	Natural phrase	Example sentence
16. financial goal	A defined purpose for earning, saving or allocating money	savings goal	The fictional savings goal was to fund future learning materials.
17. emergency fund	Money reserved for unexpected necessary expenses under a personal plan	emergency savings fund	An emergency fund was discussed as a general idea, not a child account requirement.
18. liquidity	How readily an asset can be accessed or converted to money without substantial cost	available liquidity	Liquidity matters when funds may be needed soon.
19. inflation	A general rise in prices over time, reducing the purchasing power of money when other factors are unchanged	price inflation	Inflation could change what the same credits could buy later.
20. risk	The possibility that outcomes differ from expectations, including financial losses or unmet goals	financial risk	Risk was considered before treating projected interest as certain.

Connect three words instead of stuffing a paragraph

Ask for a word naming the main object or quantity, a second describing a relevant process or relation and a third identifying a result or limitation. Use them in two connected sentences. Every word must do real explanatory work. If adding a technical word makes the sentence less clear, remove it and practise the plain accurate version first.

After the first group, cover the meanings and show the example phrases only. Ask the child what each phrase implies and where it could be wrong. On another day, show only the situation and ask for the phrase independently. This movement from recognition to prompted use and then to retrieval in a new context is more useful than continually enlarging the glossary.

The Fencing Method: controlled sentence growth and meaning boundaries

Begin with a short accurate sentence. Add one detail, reason or calculation, then a relevant condition or limitation. Check that each new layer preserves meaning and natural phrase use. If the sentence begins claiming more than the diagram or arithmetic supports, return to the previous stable version and repair one clause. A final changed setting tests whether the child actually owns the word.

Fence 1: We saved credits.
Fence 2: We started a fictional savings account with 100 credits.
Fence 3: At an assumed five-percent annual rate, the first year’s interest was 5 credits, so the year-one balance was 105 credits.
Fence 4: If interest compounded annually and no fees, tax, deposits or withdrawals occurred, year-two interest was five percent of 105 credits, or 5.25 credits. The total became 110.25 credits.
Fence 5: At five-percent simple interest on the original 100 credits, two years instead earned 10 credits total, leaving 110. We compared the methods without claiming any real account pays this rate or that inflation and fees would be zero.
Fence 6: New setting: Work with an imaginary starting principal of 200 credits at three percent annual simple interest for two years. Explain the amount earned and why another compounding rule would need separate terms.

Four learning gates before increasing difficulty

Meaning: Can the learner explain this word in the current setting and give a non-example?
Phrase: Can the learner retrieve a natural combination, such as “comet nucleus” or “annual compounding”, without copying?
Sentence: Can the learner use the phrase accurately in a complete thought with a relevant comparison, unit or cause?
Transfer: Can the learner choose the word independently for a different problem after a gap?

If one gate is weak, practise that gate. More definitions will not necessarily fix an awkward phrase, and longer sentences will not fix an unsupported inference. An accurate self-made repair is the target, even when it makes the sentence shorter.

Precision fences: similar words that should not be interchanged

Meaning boundary	Important difference	Parent check
Income / savings	Income is received; savings are amounts retained rather than immediately spent.	An allowance received is income, part retained is saving.
Expense / withdrawal	Expense is a cost; withdrawal removes funds from an account and might be used for many purposes.	Withdrawing cash is not automatically buying something.
Budget / current balance	Budget plans income allocations; balance reports what remains under specified records.	A forecast of next month is not today’s account total.
Savings / guaranteed growth	Saving describes setting money aside; growth from interest requires actual product terms and may be offset by fees and inflation.	A savings balance need not always increase.
Deposit / income	A deposit moves funds into an account; it need not represent newly earned income.	Moving existing savings does not create new earnings.
Principal / final balance	Principal is the original basis, while final balance may include added interest, fees or transactions.	100 credits principal differs from 110.25 year-two balance.
Interest / interest rate	Interest is an amount earned or paid; interest rate is the proportion used for its calculation over a defined period.	5 credits and 5% per year are different units.
Annual / monthly rate	An annual rate applies by a yearly convention; a monthly rate has a different period.	Do not multiply blindly without reading the stated terms.
Simple / compound interest	Simple interest uses original principal; compounding can earn interest on accumulated past interest.	The difference becomes visible in year two in the worked example.
Compounding / any increasing total	Adding deposits can increase a balance without compounding interest.	Separate transactions from interest calculation.
Five percent / five credits	Five percent is a ratio of a base; five credits is an absolute amount.	Five percent of 100 credits is five credits, of 200 credits is ten.
Compounding frequency / interest rate	Frequency tells how often interest joins the balance; the rate describes its proportion per stated time.	Different schedules can yield different results.
Time horizon / age	Time horizon is the duration considered for the financial decision, not the age of the person saving.	Two years is the period in the toy calculation.
Emergency fund / ordinary spending pot	An emergency fund is a reserve for unexpected necessary costs, not the same as money assigned to planned purchases.	Purpose of money matters.
Liquidity / total value	Liquidity is about accessibility without major cost, not simply the largest balance.	An asset may have value while being hard to access quickly.
Inflation / interest	Inflation concerns overall price levels; interest concerns monetary amounts paid or earned under terms.	Positive interest does not necessarily mean greater purchasing power.
Risk / guaranteed loss	Risk is the possibility of outcomes that may differ, including downside, not a promise of loss.	An uncertain outcome can turn out better or worse.
Savings example / investment recommendation	An imaginary five-percent calculation is for arithmetic, not an offer of a real return.	No account, provider, location or rate is endorsed.
Interest earned / interest owed	Interest can be received on savings or charged on debt under the relevant arrangement.	Compounding debt is not automatically a benefit.
Nominal balance / purchasing power	A larger currency amount may buy less if prices rise sufficiently.	Account growth and real purchasing power are different.
Fee-free example / actual terms	Real products may apply charges, eligibility rules, taxes or different calculation methods.	The example’s exclusions are assumptions, not universal facts.

Two-sentence proof without a model

Hide the table and show a different case. Ask for one sentence identifying what is known and one explaining an appropriate relationship or limitation. Use two target words if that is enough. The child should explain why another related word is inaccurate and check any numerical work or scientific classification before declaring certainty.

Original story: The Extra Quarter Credit in the Savings Book

This story and its numerical cards are original educational examples. Real scientific facts are separated from imaginary diagrams and any invented financial values. The aim is to read a situation, notice a misleading word and repair the meaning using evidence or a clear calculation.

Worked fictional balance: five-percent interest on 100 credits

Assume exactly 5% annually, interest posted at each year-end, no deposits, withdrawals, fees, tax or changes in rate. These are imaginary credits, not a real currency or quoted bank offer.

Simple interest and compound interest after two years
Time	Simple-interest calculation	Simple balance	Compound-interest calculation	Compound balance
Start	Original principal	100.00	Original principal	100.00
End year 1	5% × 100 = 5.00	105.00	5% × 100 = 5.00	105.00
End year 2	Another 5% × 100 = 5.00	110.00	5% × 105 = 5.25	110.25
Difference	—	—	110.25 − 110.00	0.25

The extra 0.25 credit is the effect of annual compounding for this specific numerical example over two years. It does not account for inflation or guarantee a real return.

At a fictional maths-and-life-skills club, Elia received a worksheet showing 100 imaginary credits in a savings balance. Her budget included an income line for a small allowance, an expense line for a notebook, and a separate amount for savings. Their teacher explained that deciding how to allocate resources is different from promising that money always grows.

The worksheet showed an opening principal of 100 credits, an annual interest rate of five percent and a two-year time horizon. Elia calculated the first year’s interest as five credits. She knew that making a deposit would add money and a withdrawal would remove it, but the worked question deliberately specified neither transaction.

Her friend Rafi used simple interest. Each year he calculated five percent of the original principal: five credits and another five credits. His total was 110 credits. Elia used compound interest with yearly compounding. Her second-year five-percent calculation used the new balance of 105 credits, giving 5.25 credits and a year-two balance of 110.25.

“Where did the extra quarter credit come from?” Rafi asked. Elia explained that year-two compound interest included interest on the five credits earned in year one. They compared the two rules, not the merits of any actual bank account.

Their teacher then added a financial goal card for educational supplies and a hypothetical emergency fund card for unexpected essential costs. A money decision might need appropriate liquidity if funds could be required soon. The children did not treat either example as a requirement that every family hold the same amount.

Finally they discussed inflation and risk. A balance increasing by interest did not prove that its purchasing power increased by the same percentage. Real savings and borrowing products can carry fees, restrictions and different rates. The class wrote: “Our arithmetic demonstrates one specified compounding rule, not a guaranteed return or a recommendation for a financial product.”

Comprehension questions with worked model answers

What was the starting principal?
Model answer: 100 imaginary credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What annual rate was assumed?
Model answer: Five percent, fixed for the example.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What was the year-one interest amount?
Model answer: Five credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What was the balance at the end of year one?
Model answer: 105 credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
How was year-two simple interest found?
Model answer: Five percent of the original 100 credits, giving another five credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What was the two-year simple-interest balance?
Model answer: 110 credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
How was year-two compound interest found?
Model answer: Five percent of the new 105-credit balance, giving 5.25 credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What was the compound balance after two years?
Model answer: 110.25 credits.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What was the difference after two years?
Model answer: 0.25 credit under the assumptions.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What role did deposits and withdrawals play?
Model answer: Neither occurred in the example, so they did not affect the calculation.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What did annual mean?
Model answer: A one-year period for the stated rate and compounding convention.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What was the time horizon?
Model answer: Two years.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
Was the result a real bank rate or offer?
Model answer: No. It was an invented arithmetic example.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
What is liquidity relevant to?
Model answer: How readily funds can be accessed for a goal or unexpected need.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
Does increasing nominal balance always mean purchasing power rises equally?
Model answer: No. Inflation and other factors affect purchasing power.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
Could compound interest apply to borrowing as well as saving?
Model answer: Yes. Depending on terms, interest can accrue on debt too.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.
Why did the class avoid recommending a product?
Model answer: The lesson provided no real product terms, eligibility, fees or personal circumstances.
Ask your child which example, comparison, number or condition supports that answer. Another clear and accurate sentence can be correct even if it does not repeat the model word for word.

Independent retelling: Put the story away and ask your child for four sentences: what was the question, what information was given, which word was corrected and what limitation remained? Invite two or three target words naturally. If the response closely copies the original, change the material, body or numbers and ask for a fresh explanation.

Parent activities with answer guidance

These tasks require only paper, safe drawings and fictional numbers. Give the child a chance to answer before reading the model. Other natural responses may be acceptable if the underlying science, mathematics and scope remain correct. Choose a few tasks at a time and return to them later rather than racing through the entire collection.

Parent practice 1: Make a simple budget

Prompt: Imagine 20 credits of allowance and 5 spent on stationery.

One correct response: Income is 20, expense 5, leaving 15 before other allocations.

Hide the answer, change one part of the situation and invite a different sentence. Work with only one or two activities in a sitting. Accuracy and retrieval after a delay matter more than completing the worksheet quickly.

Parent practice 2: Separate saving from spending

Prompt: Set aside 4 of the remaining credits for a future goal.

One correct response: Those 4 credits are savings under the fictional plan.

Parent practice 3: Identify principal

Prompt: An imaginary account opens with 100 credits.

One correct response: Principal in this calculation is 100 credits.

Parent practice 4: Calculate five percent

Prompt: Find 5% of 100 credits.

One correct response: Five credits.

Parent practice 5: Find the first balance

Prompt: Add the first year’s interest to principal.

One correct response: 105 credits.

Parent practice 6: Calculate simple interest across two years

Prompt: Use a principal of 100, annual rate 5%, two years.

One correct response: Interest total 10 credits; balance 110.

Parent practice 7: Calculate compound second year

Prompt: Find 5% of 105.

One correct response: 5.25 credits.

Parent practice 8: Compare two balances

Prompt: Compare 110 and 110.25.

One correct response: Compound balance exceeds simple by 0.25 credit in this case.

Parent practice 9: Change the base

Prompt: Find 5% of 200 credits.

One correct response: Ten credits, showing percentage depends on principal.

Parent practice 10: Explain deposit versus interest

Prompt: Add 10 credits as a fictional deposit.

One correct response: The extra 10 comes from a transaction, not interest earned.

Parent practice 11: Explain a withdrawal

Prompt: Take 15 credits from a fictional balance.

One correct response: Balance falls by 15 before other effects; this is not necessarily an expense.

Parent practice 12: Define a financial goal

Prompt: Imagine saving for study materials.

One correct response: A defined purpose can guide a saving plan.

Parent practice 13: Discuss an emergency reserve

Prompt: A family considers unpredictable essential expenses.

One correct response: Emergency savings are reserved for those circumstances, with plans varying by household.

Parent practice 14: Compare liquidity

Prompt: A resource is valuable but cannot be accessed quickly without high cost.

One correct response: It may have low liquidity, regardless of nominal value.

Parent practice 15: Recognise inflation

Prompt: Prices increase while an account balance stays the same.

One correct response: The money may buy fewer goods despite having the same number of credits.

Parent practice 16: Separate saving from borrowing

Prompt: One interest card shows earnings; another shows interest owed.

One correct response: Interest can benefit a saver or represent a cost for a borrower.

Parent practice 17: Name excluded conditions

Prompt: Read the exercise rule ‘no fees, tax or deposits’.

One correct response: These exclusions are part of the model and may not hold for a real account.

Parent practice 18: Transfer to a new rate

Prompt: Use 200 credits at 3% simple interest for two years.

One correct response: Interest is 12 credits; total 212.

Parent practice 19: Compare another compound example

Prompt: Use 200 credits at 3% annual compound interest for two years.

One correct response: Year one 206; year two 212.18, assuming annual compounding and no other changes.

One changed-context check

Give a completely new card that uses the same important concept. Do not name the expected word. Invite the child to select the phrase that communicates the idea and to explain a nearby incorrect alternative. If recall is difficult, offer only a small phrase cue and return after a delay. That practice targets flexible use, not copying.

Common errors and targeted Fenced repairs

The statements below are intentionally wrong or overconfident. Let the child attempt a correction first, then compare with the model and explain why it is better. The repair should address the first weak word, classification, unit or assumption. A long paragraph written by the parent would hide whether the child can make this distinction independently.

Unsteady: Income is always the same as savings.

Repaired: Income is received; savings are money set aside from available resources.

Unsteady: Budget and account balance are identical.

Repaired: A budget is a plan; a balance is the remaining amount under a record.

Unsteady: Every withdrawal is an expense.

Repaired: Withdrawal removes funds, while spending occurs when paying for goods or services.

Unsteady: Principal is always the final total.

Repaired: Principal is the original amount used as a basis in the stated calculation.

Unsteady: Interest and interest rate are the same units.

Repaired: Interest is an amount while the rate is a percentage per stated period.

Unsteady: Five percent means exactly five credits regardless of the starting amount.

Repaired: Five percent is a proportion of the defined base.

Unsteady: Simple interest uses last year’s balance including interest.

Repaired: Simple interest in this model uses the original principal each year.

Unsteady: Compound interest never includes previous interest.

Repaired: It can add interest to the balance and calculate later interest on that larger amount.

Unsteady: The second-year compound interest was still five credits.

Repaired: Five percent of 105 is 5.25.

Unsteady: The two-year compound balance was 110 credits.

Repaired: It was 110.25 credits under the example assumptions.

Unsteady: Annual and monthly mean the same compounding frequency.

Repaired: Annual means yearly; monthly means twelve periods per year under the relevant convention.

Unsteady: Any growing balance proves compounding.

Repaired: Deposits or other transactions can increase balances without interest compounding.

Unsteady: A positive interest rate guarantees purchasing power will grow.

Repaired: Inflation, fees and tax may change the real result.

Unsteady: Compound interest is always a benefit.

Repaired: Compound interest on debt can increase what a borrower owes.

Unsteady: Liquidity is another word for balance size.

Repaired: Liquidity concerns ease and cost of accessing value.

Unsteady: An emergency fund is always a required fixed number of credits.

Repaired: The purpose is preparing for unexpected needs, but amounts and arrangements vary.

Unsteady: Risk always means guaranteed loss.

Repaired: Risk concerns uncertain outcomes, including possible downside.

Unsteady: A classroom five-percent rate is a real financial-product recommendation.

Repaired: The rate and credits are fictional numerical assumptions, not an offer.

Unsteady: Borrowing and saving have identical interest outcomes.

Repaired: Interest earned and interest owed are different financial roles.

Unsteady: A two-year time horizon means a two-year-old learner.

Repaired: Time horizon is the duration relevant to a financial plan.

Five checks before writing a longer explanation

Does the word name the correct object, quantity or process?
Does it fit naturally with the surrounding phrase?
Can the child name a related term that would be wrong here?
Does the statement respect the scientific or numerical evidence and the model’s assumptions?
Can the corrected term be used in another situation without the first example?

When any check fails, return to a shorter accurate sentence. The learner should be able to explain why the small correction matters. Precise ordinary English is a strength, even when an advanced word looks attractive.

Frequently asked questions for parents

What is a budget?

A plan organising expected income, expenses and saving.

What is income?

Money received during a defined period.

What is an expense?

A cost incurred or amount spent for something.

What are savings?

Money set aside instead of immediately spent.

What is account balance?

The recorded amount remaining under stated transactions and adjustments.

What is a deposit?

Funds added to a balance or account.

What is a withdrawal?

Funds taken out of an account or balance.

What does principal mean?

The original amount on which interest is initially based.

What is interest?

Money earned or owed for the use of money under particular terms.

What is an interest rate?

A proportion applied to a specified base over an agreed time period.

What does annual mean?

Relating to one year.

What is simple interest?

Interest calculated on the initial principal rather than accumulated previous interest.

What is compound interest?

Interest calculated on a balance that includes previous interest under the agreed compounding arrangement.

How does compounding work?

Earned interest is added to the interest-bearing balance on a defined schedule, changing later calculations.

How much is 5% of 100 credits?

Five credits.

What is simple-interest total after two years?

110 credits in the given example.

What is compounded total after two years?

110.25 credits with annual compounding and no other changes.

Is 0.25 credit a real bank return?

No. It is the difference in two invented calculation methods.

Can the compounding period affect a result?

Yes. Results depend on the rate convention and how often interest is added.

What is a financial goal?

A stated purpose guiding how money is planned or saved.

What is emergency savings?

Funds reserved for unexpected necessary expenses as appropriate to circumstances.

What does liquidity mean?

How easily an asset can be converted to spendable money without substantial cost.

What is inflation?

A general increase in prices that can reduce purchasing power.

Does nominal account growth guarantee real growth?

No. Inflation, taxes and fees may affect purchasing power.

Does compound interest apply to loans too?

Yes. Some borrowing arrangements accrue interest on existing amounts owed, depending on terms.

Is saving always risk-free?

Every arrangement involves differing trade-offs and risks, including inflation and access limits.

Should children sign up for financial services to learn these terms?

No. Invented credit examples and parent-guided arithmetic are enough.

What is a time horizon?

The period being considered for the goal or calculation.

How do I check transfer?

Change the principal and rate and ask for simple interest, then compare a specified compound schedule.

Seven days of short, spaced vocabulary practice

Day 1: Name income, expense, budget, savings and balance with invented allowance cards.
Day 2: Use deposit, withdrawal and principal while keeping transactions separate from earned interest.
Day 3: Calculate interest and interest rate with 100 credits at 5% annually.
Day 4: Compute simple interest through two years and name the annual period.
Day 5: Compute compound interest and compounding for two years, then compare the final balances.
Day 6: Discuss financial goal, emergency fund, liquidity, inflation and risk without recommending products.
Day 7: Hide the glossary and solve a new 200-credit example with a different rate and an explicit time horizon.

Keep sessions short and revisit previous word groups across several days. The final day should use a different situation with the glossary closed. Learning is not measured solely by how many definitions were copied. Independent meaning, natural phrases and transfer provide stronger evidence.

Parent progress record

For three chosen terms, note recognises, uses with a cue, uses independently in the original task or transfers independently to a changed task. Save one natural phrase and the first misconception that needed repair. Use these observations to plan tomorrow’s exercise rather than compare children by speed or volume.

Ask which word helped the child explain something more clearly today. Invite a concrete sentence, not just a definition. If no new sentence comes, return to one accurate phrase and try a different context after an interval.

Continue reading connected vocabulary and reference guides

These lessons connect science and mathematics with independent explanation, thoughtful decisions and accurate language. Families can revisit earlier volumes when a new topic reveals an unstable phrase. Volume numbers provide a reading path, not a schedule that every child must follow.

Related eduKateSG learning and authoritative sources

CFPB: How Does Compound Interest Work? · CFPB: Money as You Grow · eduKateSG: Financial Literacy Education · eduKateSG: Core Aim of Education — Financial Literacy · Vol 19: Compare Prices, Plan Budgets and Explain Value · Vol 57: Fractions, Ratios and Percentages · Vol 43: Understand Chance, Likelihood and Random Events · The Fencing Method for Vocabulary · Vocabulary Failure Atlas · Vocabulary OS Series Index · Vocabulary collection.

Parent takeaway: choose a small group of purposeful words, learn their natural phrases, build accurate sentences, repair the first misunderstanding and check independent use in an unfamiliar context. The word is useful when it clarifies a real distinction.

Top 20 Vocabulary Words for Children | Vol 71: Understand Saving, Interest and Everyday Financial Choices