This item is a 20 slide Google presentation, five question summary for students, as well as a key to use for the summary questions. I use this presentation to introduce the parts and usage of compound light microscopes in the classroom. The teacher can use a number of slides per day, or the presentation all at once, depending on your class needs. This is great for science enrichment or acceleration for advanced or gifted students. This presentation can be used whole group, in small groups, or pu