Coordinate Plot Points

Coordinate Plot Points practice with teacher guidance, common slips, and next-step routes.

Core · Coordinate Plot Points · Independent practice · Construction Grid

Build a four-sided loop on the coordinate grid. Use 4 different grid intersections and exactly 4 straight sides. No sides may cross, and every corner must turn outward—not flat or inward. Make one inside angle exactly 4 times another. More than one answer works.

Place 4 integer-coordinate points and join them in one noncrossing cycle.

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Angle Check

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Print: Ages 13–15 · 10–20 min · Challenge · Coordinate construction · Independent practice · Construction proof

Watch: Watch whether the learner keeps four distinct snapped points in one simple loop while adjusting the shape. Decisive evidence is a submitted construction that the exact checker certifies as strictly convex with one interior angle exactly four times another.

Misread: A likely misread is to enter coordinates or name an angle without building the loop. The answer is the complete four-point, four-side construction; crossing, flat, inward, incomplete, or only approximately 4:1 shapes are not accepted.

Curriculum: This task combines integer-coordinate plotting, polygon topology, strict convexity, symmetry, and exact angle relationships. It scores construction of a valid coordinate-grid quadrilateral, not recall of a named shape or a decimal angle measure.