Science and Engineering Practices - 3-5.SEP6.4:
Generate and compare multiple solutions to a problem based on how well they meet the criteria and constraints of the design solution.

Disciplinary Core Ideas - S.3-5.ETS.1.2.DCI:
ETS1.B: Developing Possible Solutions •Research on a problem should be carried out before beginning to design a solution. Testing a solution involves investigating how well it performs under a range of likely conditions. •At whatever stage, communicating with peers about proposed solutions is an important part of the design process, and shared ideas can lead to improved designs.

Crosscutting Concepts - CC8.2:
Engineers improve existing technologies or develop new ones to increase their benefits, decrease known risks, and meet societal demands.