Follow ClassEquity Ambassador RoseMary's instructions for how to link ClassEquity to Canvas:
Open the instructional slideshow here which includes guided screenshots
Sign into Canvas
Click your course
On the homepage, click "settings" at the bottom on the left-hand side.
At the top of the page, click "Apps"
In the search box, type "Redirect Tool"
Click "add app"
Change "Name" to "ClassEquity"
In the URL Redirect box, type https://student.classequity.com/login
In the same box, choose the checkboxes that apply where the teacher wants the "button" to appear.