Get to know these  web sites

Screencast-o-matic - for creating a video of a slideshow with narration (15 minute limit vs 5 minute limit with Screencastify)

EdPuzzle - video content site with embedded questions

Khan Academy - this is a great site to brush up on your grammar skills (and many other subjects) 

Canva is a design app - there is a basic version (free) and a Pro version (usually not free but here is an offer for students)