Science and Engineering Practices - PK2.SEP1.1:
Ask questions based on observations to find more information about the designed world.

Science and Engineering Practices - PK2.SEP1.2:
Define a simple problem that can be solved through the development of a new or improved object or tool.

Disciplinary Core Ideas - S.K-2.ETS.1.1.DCI:
ETS1.A: Defining and Delimiting Engineering Problems •A situation that people want o change or create can be approached as a problem to be solved through engineering. •Asking questions, making observations, and gathering information are helpful in thinking about problems. •Before beginning to design a solution, it is important to clearly understand the problem.

Science and Engineering Practices - PK2.SEP2.2:
Develop a simple model based on evidence to represent a proposed object or tool.

Disciplinary Core Ideas - S.K-2.ETS.1.2.DCI:
ETS1.B: Developing Possible Solutions •Designs can be conveyed through sketches, drawings, or physical models. These representations are useful in communicating ideas for a problem’s solutions to other people.

Crosscutting Concepts - CC4.1:
The shape and stability of structures of natural and designed objects are related to their function(s).

Science and Engineering Practices - PK2.SEP4.3:
Analyze data from tests of an object or tool to determine if it works as intended.

Disciplinary Core Ideas - S.K-2.ETS.1.3.DCI:
ETS1.C: Optimizing the Design Solution •Because there is always more than one possible solution to a problem, it is useful to compare and test designs.