About Angle Archer
Angle Archer teaches angles step by step, the way they come up in school. It starts with the kinds of angle: acute, right, obtuse and straight. Then you read a real-looking protractor, first in tens and then in fives, including the tricky angles that open from the left and need the outside scale.
Later levels find missing angles: angles on a straight line add up to 180 degrees, the angles in a triangle add up to 180, and all the way round a point is 360. There are reflex angles, compass bearings measured clockwise from North, and two archer levels where you drag to aim a bow at a number of degrees, which builds a real feel for how big an angle is.
Every question comes with a short explanation when you answer, so mistakes turn into learning. Each level has 10 questions, and 10 right wins 3 stars. A robot made thousands of questions for every level to check that every answer and every picture is right.
Best for ages 8+
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