There are two different ways to add images to a course unit.

By uploading the file in the related course: 

1. Go to the course in which you want to add the image.
2. Click Add Content (1).
3. On the drop-down list that appears, click Go to files (2).

4. Click Add file or drag and drop to add the image.

5. Go back to the course dashboard. 

• If you want to create a new unit, click Add Content, and then click Add Unit on the drop-down list that appears.
• If you want to edit an existing unit, click Edit. 

6. In the unit content/text box, place your insertion bar (3) in the place where you want to add the image, and click on the folder icon (4).

7. You'll see a list with all the available, previously uploaded files. Select the file you want and click on Insert (5).

8. Click Save to update your changes.

With a drag-and-drop action:

1. Go to the course in which you want to add the image.
2. Go to the unit in which you want to add the image, and click Edit.
3. In the unit content/text box, place your insertion bar in the place where you want to add the image. 
4. Drag the image from your computer files to the content/text box.
5. Click Save to update your changes.

Note: In both cases, you can adjust the size of the image just by left-clicking on the image borders.