Learn
Learn by doing
Short lessons where you guess first and check against real data: move a slider, draw a line, put things in order — and see how far off you were.
11 steps · about 8 min · 80 pointsCompound interestWhy $1,000 at the stock market’s pace became $7,848 in 30 years — and why starting early beats perfect timing.10 steps · about 7 min · 70 pointsBond prices and yieldsRates up, prices down. Why 30-year Treasuries returned −29.2% in 2022 while bills earned +1.7%.
How it works
- GuessSet a slider to what you think, then check: spot on, close, or not quite.
- MoveDrag the rate, the years or the yield and watch the chart answer.
- DrawSketch the line you expect; the real one appears over it.
- SortDrag items into order, then see the numbers behind them.
Quick quizzes
Three to five questions at the end of an article, built from its numbers.
- Average stock market return4 questions