Read a real harbor protractor to the exact degree — line up the baseline, pick the right scale, and log every angle.
A real protractor overlays each angle and the child reads it to the exact degree — lining up the baseline and choosing the inner or outer scale that reads zero on the base arm. Reading the scale (not eyeballing) is the skill. Best for Grades 5–6.
A free, no-signup, no-ads math game for Grades 5–6 — practising angle-measurement, read-protractor, inner-outer-scale, draw-angles, degrees. Play in your browser on the KidsDoMath games hub or explore more Geometry & Shapes games.
By grade level: 5th Grade Math Games6th Grade Math Games
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What math does Protractor Port practice? Protractor Port practices Angle Measurement, Read Protractor, Inner Outer Scale, Draw Angles. A real protractor overlays each angle and the child reads it to the exact degree — lining up the baseline and choosing the inner or outer scale that reads zero on the base arm.
What grade is Protractor Port for? Protractor Port is built for Grades 5–6 (ages 10–12). It sits in the Geometry & Shapes strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Protractor Port? Read a real harbor protractor to the exact degree — line up the baseline, pick the right scale, and log every angle.
Is Protractor Port free to play? Yes. Protractor Port is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.