Simple Solutions - Video
(addresses most PEs below)
3-5-ETS1-1. Define a simple design problem reflecting a need or a want that includes specified criteria for success and contraints on materials, time, or cost.
3-5-ETS1-2. Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem.
3-5-ETS1-3. Plan and carry out fair tests in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.