The presentation comes in two formats: PowerPoint Show and pdf. The presentation is on the prefixes bi- and tri-. It could be used whole class with a projector or small group. For those students who need additional support, it can be done one-on-one.
This presentation allows students to practice give the new meanings of words with the prefixes bi- and tri-. There are 7 words with the prefix bi- and 7 with the prefix tri-.
If students are given a daily opportunity to practice affixes, they will become experts in no time.