K12 Reader
Taiga Ecosystems
After reading a short article about taiga ecosystems, middle schoolers are asked to identify the characteristics of this chilly environment.
Curated OER
Stoichiometry, Percent Yield and Limiting Reagents: practice problems
The questions here present situational problems and calculations to help your students understand the application of the math and data analysis practice.
Curated OER
Classification Number Two
A three-page quiz assessing budding biologists' understanding of classification. Middle-level learners may need a little additional time on this, but should be able to handle the concepts with ease.