Eleventh graders practice the Quadrat Survey Technique to analyze the biodiversity of a local plant community. They compare its biodiversity with the documented changes in biodiversity of the tallgrass prairie over time.

Learners work with the strategy of breaking a problem into parts in order to solve it. They write an expression with parentheses for each of the first three problems, and solve the problem, and use information from a table to answer the...

Seventh graders simulate the capture-recapture method of population sampling using beans. In this biology lesson, 7th graders calculate the total population of beans in the bowl. They assess whether this method is reliable or not.