Blocks allow you to drag and drop pieces of code together instead of typing everything out. If your teacher allows blocks for your course, you can switch back and forth between Block and Code view in the Code Editor.

If blocks are allowed, you will see a bar near the top that says Switch to Block View:

Or Switch to Code View:

To set your default preferences, click the gear icon in the top-left of the Code Editor.

Then, toggle this option to automatically display blocks when your teacher has allowed them. It should look like this:

You can reach out to your teacher to ask if they can enable blocks by going to More > Conversation near the top-right corner of your Code Editor.

Here, you can ask them to enable blocks for the assignment you're working on:

Even if your CodeHS course does not allow blocks, you can use Blocks in Sandbox programs.

Blocks are only available for the following languages / Sandbox program types:

To toggle blocks, click the gear icon in the upper-left and toggle Block/Text settings (you will have to refresh to see the changes):

Your view may also look like this: