Ages 11+beginner
What Is Interest?
Explore why interest is the time-value of money.
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interest-growth lessons for kids
Explore modules, starter lessons, quizzes, and activities designed to help children understand interest-growth in real life.
Ages 11+beginner
Simple Interest Math
Explore why i=Interest (what you earn/pay), P=Principal (starting amount), R=Rate (as a decimal percentage), T=Time (in years).
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Interest Grows Savings
Explore why daily crediting means each day's interest is added to the principal.
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Interest Costs Borrowers
Explore why interest is the price of borrowed money.
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Compound Interest Intro
Explore why practical: interest on original amount only.
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The Rule of 72
Explore why rule of 72: divide 72 by the annual rate.
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Make Money Work for You
Explore why every year of delay loses compounding cycles that can never be recovered.
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