Eighth graders are introduced to cell organelles and their functions and the they define the differences between animal and plant cells. They write a paragraph explaining the difference between plant and animal cells and students...

Show your class how engineers use graphs to understand large and complex systems. The resource provides the beginnings of graph theory by introducing the class to set theory, graphs, and degree distributions of a graph. 

Ninth graders are introduced to the concept of human embryology. Individually, they complete an exercise in which they determine which trait they got from which family member. In groups, they identify and label the reproductive organs...