To assign a Target Lesson, click the Assign button at the top of the page. The Create an assignment panel will then pop out on the left-hand side.
From there, you can select the class(es) you would like to assign the Target Lesson to, as well as select the option to require answers to Instructional In-Text Questions on or off for the lesson. After that, you can choose the start and due date, as well as customize the lesson directions by clicking on the "Customize directions" section below the Start date and due date section.
Once you have finished those steps, you will then click the teal Assign button under the Customize directions section to finish assigning the lesson.