You might want to reuse slides you have already created in a Course to save some time. Here is how to:

Go to Dashboard > Courses and select the Course where you want to duplicate a slide. In the Slides tab, you will see additional actions to the right of the slide. Select Duplicate slide. This action will create a duplicate of the slide. The duplicated slide will appear at the end of the Course slides and just before the End slide.

You can now edit the duplicated slide by selecting Edit slide. Select the arrow to the left of the slide to Move the slide up to your preferred location in the Course.