Lesson 4: Shop Geometry & Perimeter
Duration of Days: 4
Lesson Objective
SWBAT: Classify standard stock shapes (rectangles, trapezoids, hexagons) and identify their geometric properties.
Calculate the total perimeter of compound shapes to determine the length of material needed for framing
How does the shape of the raw material affect the manufacturing process?
How much "trim" or "banding" is required to secure a non-rectangular pallet?
Perimeter, rectangle, trapezoid, parallelogram, parallel, perpendicular, vertices.
CTE.MFG.B.07 (Perimeter/Area/Volume)
CCSS.Math.7.G.B.4 (Circumference/Area)
DOK Level: 2 (Skill/Concept)
Students identify stock shapes and calculate boundaries. This prepares students for layout work and finishing processes.
Use physical manipulatives (blocks or cut-outs) so students can physically trace the perimeter.
Extension: Calculate the perimeter of a "Compound Shape" (a shape made of a rectangle and a triangle joined together).
"The Raw Stock Project." Students must calculate the total linear footage of material needed to create a frame for a custom industrial workstation.