Second Graders are finishing up our Engineering Unit this week.
We have been working to solve the problem
in the story Yi Min's Great Wall.
In the story, a rabbit keeps sneaking into her garden and eating her plants. Yi Min explores the property of earth materials, and she realizes that not all materials are created equal when it comes to building a wall. We have created samples of walls made from different combinations of mortar, gravel and water. Check out the pictures below to see which step of the Engineering Design Process helps us determine the best combination of earth materials.
Can you tell which step we are at?
If you guessed Testing/Try It Out, you are correct!
Ask your second grader to explain which mixture of earth materials they would want to use to build Yi Min's wall.
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