# Science:Infinite Series Module/Appendices

## External Resources

- Recommended Exercises
- Recommended Textbooks and Course Notes

## Additional Lessons

These lessons contain content that students **will not be tested on**, but may help them understand the material contained elesewhere on this site.

- The Contrapositive and the Divergence Test
- The Comparison Test
- Proof of the Ratio Test

## Lists

- List of Videos in the ISM
- List of Wolfram Alpha Widgets in the ISM