We all need feedback, and it's really helpful to get feedback from students about how a class is going. You can do that with periodic surveys, and you might also want to set a Suggestion Box that students can use any time. Students might be shy to tell you there is a problem with the class, but the anonymous Suggestion Box allows them to share their ideas with you without hesitation.
I've got a Suggestion Box in each of my Canvas course spaces, and I've added to the navigation menu too. You can see how that looks here: Myth-Folklore Suggestion Box.
Google Form
To create a Google Form, log on to Google with your Google account, and then type Form.new. For step by step information about creating your form, see: Google Forms Help.
I'd suggest configuring the email notification so you'll know when someone has left a suggestion. Click on Responses, and then click "Get email notifications."
The Redirect Tool App is how you can add an external webpage (a website, a blog, a form, etc.) to your Canvas menu. Here's how it works:
1. Go to Canvas Settings.
2. Go to Apps.
3. In Filter by Name box, type: Redirect. Click on the icon.
4. Click Add App.
5. Then fill in the dialogue box:
Name: Suggestions (or whatever you want)
URL: copy the URL from the Google Form send: link
Force Open: UNCHECK this box
Course Navigation: CHECK this box
Account/User Navigation: leave these unchecked
6. Click Add App. You're done!