Conclude by giving your students these challenges:

- Which Is Bigger? by NRICH
- Climbing the Stairs by NRICH
- Six Discs by NRICH
- An Unusual Shape by NRICH

Conclude by giving your students these challenges:

- Which Is Bigger? by NRICH
- Climbing the Stairs by NRICH
- Six Discs by NRICH
- An Unusual Shape by NRICH

- Analyzing a function with its derivative
- Curve sketching with calculus: polynomial
- Curve sketching with calculus: logarithm