This article covers the Legacy editor. Lessons built in the New editor work differently. To add and remove blocks in the New editor, see Inserting content with the slash and plus menus. New to the difference between the two? Start with The new lesson experience.

A Legacy lesson is a list of blocks. This is how you add and remove them.

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Open the lesson from My Library. The Outline down the left lists every block.

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Click Add block at the bottom of the Outline and pick a type.

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Fill the block in, then click Save.

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Open the block's menu in the Outline and delete it. If students have already answered it, their responses go with it, so check before deleting a question that has been assigned.

Drag blocks in the Outline to reorder them.

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