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STEM Showcase Floor Plan

By Platform Administrator · Submitted Sep 30, 2026

Content Area
Mathematics
Grade
3

Students apply their understanding of area and perimeter to design a layout for the school's STEAM Showcase. Students visualize how they could combine and align actual cafeteria tables to create rectangular and rectilinear shapes before calculating the area and perimeter of their proposed displays for the showcase. Students then use multiple modalities, such as Geoboards, grid paper, and Google Draw to design their layouts. Lastly, they each write a description of their layout and their reasoning behind how they partitioned the cafeteria space using polygonal language (i.e. the attributes of the polygons they create).

MA Standards

3.MD.C.5
Recognize area as an attribute of plane figures and understand concepts of area measurement.
3.MD.C.7.d
Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real-world problems.
3.MD.D.8
Solve real-world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.
SL.3.4
Report on a topic, text, or solution to a mathematical problem, tell a story, or recount an experience with appropriate facts and relevant, descriptive details, speaking clearly at an understandable pace and using appropriate vocabulary. (See grade 3 Language Standards 4-6 for specific expectations regarding vocabulary.)
SMP.6
Attend to precision.
W.3.1.b
Provide reasons that support the opinion.

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