What do a bicycle and a car have in common? They both move using the simple machine wheel and axle. In this lesson, students learn about how this simple machine works, and will identify objects that use a wheel and axle.

Your students will turn into crazy Halloween sentence making machines with this fun lesson on constructing complete sentences. Students will practice making and mixing subjects and predicates - and the results will have you all ROTFL.

Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.

Marie Curie’s monumental achievements in chemistry and physics are remarkable. In this lesson, your students will read two accounts of her life, integrate the details, and assess the importance of having more than one source of information.