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Table 1 Completed task adaptation chart for the “Packing It In” task

From: Integrating STEM in elementary classrooms using model-eliciting activities: responsive professional development for mathematics coaches and teachers

MEA features

Task strengths

Adaptations required

Open ended

Ambiguity of the expected solution is a strength

Giving advice to a client

Allowing students to choose own dimensions.

Writing dimensions on truck = visual help

Client driven

Giving advice to a client Helping Stefan pack

Background on Stefan

What is he packing?

Pack: back → front/bottom → top

Stack boxes on top of each other

Math similar to real life

Giving advice to a client

Actual dimensions of truck and boxes

Providing the dimensions of the truck bed and asking what dimension boxes would fit most ideally in a truck of that volume (realistic)

Manipulative: snap cubes, base 10,

Snap cubes are more ideal, can snap more together, and make a scale

Graph paper—make bed of truck

Engineering design process

Giving advice to a client

Create the box—using manipulatives

Create change as they go along

Making more focused in design process.