• Students identify and explore the uses of simple machines including a screw, wedge, pulley, inclined plane, lever and wheel and axle.
• Students research other Rube Goldberg inventions in order to understand the requirements of this task.
• Students draw a plan of a Rube Goldberg invention that will fit the criteria, eg at least three transfers of energy. This design plan should indicate materials required, lengths, heights, positions and angles of placement. Some students may develop a scale diagram.
• Students determine and collect the materials that they will need to use to construct their invention.
• Students make their invention.
• It is unusual to make a perfect working machine on the first try. Repeat attempts at modifications are encouraged, should be noted and failures celebrated. It is through the failures and resulting modifications that students learn. These modifications should be noted on their original design plans with annotations explaining why the changes were made.