All-in-One Geometry Ruler

This is a compact all-in-one geometry ruler I designed for my Grade 6–7 math students who always forget their geometry sets 😄. With a single tool, they can: Measure with the 13 cm ruler along the top edge Draw common 2D shapes (square, rectangle, triangle, pentagon, hexagon, circles, star) Use the curved edge as a protractor to estimate and construct angles Practice area, perimeter, and volume problems using the built-in shapes as templates The dimensions are chosen so that: Up to 4 rulers can be printed at once on a standard bed The finished ruler fits easily into a pencil case, making it a perfect classroom gift at the end of a geometry unit I first printed a batch in PLA and later a second batch in PETG, and both worked perfectly in daily classroom use. The rulers are sturdy, easy for kids to grip, and the shapes release cleanly for tracing. MembershipIf you like practical classroom tools and kid-friendly designs, consider subscribing to my MakerWorld page. I share more math and sc