Curated OER
Levers: Catapults
Students construct a catapult that shoots a cotton ball at least two meters using Legos, rubber bands, and plastic spoons. They discuss how the catapult works, and identify any problems they had with their experiment.
Curated OER
Designing and Building Catapults
Seventh graders complete a challenge to create a catapult that projects a marble or other projectile at least one meter. While experimenting they apply the Four Question Strategy to answer the question, " How can I make one modification...
Curated OER
Catapult Unit
Students understand the need for carefully defining the problem before searching for a solution. They understand the need for carefully defining the problem before searching for a solution. Students compare a variety of catapults and the...
Curated OER
Simple Machines, Odd Machines
Students recognize and identify common objects that can be used as a lever. In this simple machines lesson, students experiment with materials to design and construct a machine that uses a lever. Students also design and build a catapult.
Curated OER
Simple Machines, Odd Machine
Students construct a device to 'launch' a marshmallow at the teacher and then discuss various forms of levers. They work in teams to design catapults and identify different kinds of levers.
Curated OER
Simple Machines, Odd Machine
Pupils examine levers and design a machine that uses a lever as a central component. For this lever machine lesson students test various machine designs and evaluate their effectiveness.
Curated OER
Move It!
Third graders examine simple machines. In this simple machines lesson, 3rd graders observe simple machines at work in a video, then experiment with creating their own simple machines to move objects.
Curated OER
Simple Machines, Survivor-Style
Students apply the principles of simple machines to create events in a wacky obstacle course. They work with a partner to prepare a visual presentation and an expository description of the obstacle course. Each group sequentially...