curriculum/challenges/english/blocks/learn-ratios-and-proportions/6331caa1b51aeedd1a2bd644.md
This first video includes an introduction to the course, how it will work, and how to use Google Colaboratory. Follow along to create your first Colab notebook.
Videos throughout these courses will reference problems from these two textbooks:
- <a href="https://lyryx.com/subjects/business/business-mathematics/" target="_blank" rel="noopener noreferrer nofollow">Business Math, a Step-by-Step Handbook (2021) by Jean-Paul Oliver</a>
- <a href="https://cdn.freecodecamp.org/curriculum/college-algebra/AlgebraAndTrigonometry-OP_1tE6R5r.pdf" target="_blank" rel="noopener noreferrer nofollow">Algebra and Trigonometry by Jay Abramson</a> - sourced from OpenStax under <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">Creative Commons Attribution 4.0 International (CC BY 4.0)</a>
It is also possible to download the Algebra and Trigonometry textbook from the <a href="https://openstax.org/details/books/algebra-and-trigonometry" target="_blank" rel="noopener noreferrer nofollow">OpenStax website</a>. You will need to find the correct textbook and then download the PDF. The page numbers for the assignment are based on the first link for this book.
Create an algebra <a href="https://drive.google.com/" target="_blank" rel="noopener noreferrer nofollow">Colab notebook on your google drive</a> so you can follow along with the videos.
When adding text in Google Colab, what symbol would you use to create a heading that will appear in the table of contents?
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