The Grading Categories feature allows you to control how much an assignment is worth based on assignment type. With CodeHS Pro, you can set up weighted grading categories and assign each module, lesson, or activity a grading category.

One way to access Grading Categories is from your Gradebook. From the Progress page, choose Gradebook and click the dark gray Configure button to open the Configure Your Gradebook modal:

In the Grade Calculations section, you can make changes to how points and percentages are calculated. By default, grades are calculated based on Total Points. To change this, click the drop-down to choose Points Weighted by Category to categories you have configured.

For more information about configuring Gradebook settings, check out this article:
Customizing the Gradebook

You can adjust also Grading Categories per assignment by going to Course Settings > Grading Settings. Each module and activity will have an option for Grading Category.

Select the category (i.e. homework, exams, participation) using the drop-down menu:

Clicking Edit will bring up the Grading Categories modal to customize the categories: