Agree, school lessons, as well as any other material that are easier to see in Keynote presentations rather than flip through endless pages with boring formulas, trying on the basis of long texts on their own to understand all. Resorting to such an old-fashioned method, you can lose much more time and be in a hurry and not learn the material.
Math Number Background Keynote Template - Presentation
E-education and Integrated Education Keynote templates
School Bus Keynote template, Themes Presentation
Back To School Supply Box Keynote template
School Supply and Teacher Supplies Keynote Templates | Presentation Design Download