Slides Template Activities for Everyone

https://www.theresawills.com/templates

This website provides more than 30 slides templates that are set up for use in many content areas as well as generic templates for any content area. There are some pretty good and ready to go useful templates worth checking out.

I think the Would You Rather slide could be a fun warm up activity especially if you change the questions to something related to your lesson for the day. You could use options that include being able to understand a concept or work out a formula. Then as the lesson progresses they realize they might have made a different choice knowing what they know now.