Upper and lower rectangle sums and the definite integral as area

What this note covers

1. Building an accumulation from rectangles
2. The limit of a sum and its notation
3. Upper and lower sums use interval extrema
4. Signed area versus geometric area
5. Reading sampled data and judging an estimate
6. Area between two curves uses their vertical separation
7. Literal worked extension 1
8. Literal worked extension 2

8 sections · 10 key terms & formulas · 6 common mistakes