Curated OER
Exploring Biomes Lesson 3: Endangered Biomes
Future environmental scientists compare data from two different conservation strategies. Alone this lesson is sufficient, but as part of the Exploring Biomes unit produced by the Arizona Fish and Game Department, it becomes top-notch.
Curated OER
Ratio and Proportion 7.1
In this calculating ratio and proportion activity, students write rations in their simplest form, write in the form 1:n for ratios, and solve word problems. Students solve 4 problems.