K-2-ETS1-1 Ask questions, make observations, and gather information about a situation people want to change (e.g., climate change) to define a simple problem that can be solved through the development of a new or improved object or tool.

Those Darn Squirrels! by Adam Rubin

https://teaching.betterlesson.com/lesson/622032/stem-sound-day-1?from=cc_lesson

https://teaching.betterlesson.com/lesson/628130/i-scream-you-scream-we-all-scream-for-vanilla-ice-cream?from=cc_lesson

https://teaching.betterlesson.com/lesson/620235/those-darn-squirrels-brainstorming-ideas?from=cc_lesson

https://teaching.betterlesson.com/lesson/617181/safety-in-science?from=search

https://teaching.betterlesson.com/lesson/618133/solve-the-problem-of-overpopulation?from=search

K-2-ETS1-2 Develop a simple sketch, drawing, or physical model to illustrate how the shape of an object helps it function as needed to solve a given problem. 

https://teaching.betterlesson.com/lesson/640088/toy-vehicle-design?from=cc_lesson

https://teaching.betterlesson.com/lesson/636561/goody-goody-gumdrop-building-structures-are-fun?from=cc_lesson

https://teaching.betterlesson.com/lesson/629527/two-scoops-are-better-than-one?from=cc_lesson

K-2-ETS1-3 Analyze data from tests of two objects designed to solve the same problem to compare the strengths and weaknesses of how each performs.

https://teaching.betterlesson.com/lesson/636805/build-a-paper-tower-challenge-part-4-testing-our-towers?from=cc_lesson