From the Planbook Bar, select **School Years**.

Hover over the school year, and click the **Edit** button.

Click the **Actions** (3 dot) icon in top-right menu of Edit School Year.

Enter the **Date Range** of the lessons you want to delete.

Click the **Show Lessons** button to load the lessons.

Use the checkbox to select all, or individual lessons, to delete.

Click the **Delete** button to delete the lessons, or the **Unlink** button to unlike the linked lessons.

How to Delete Lessons from All Classes