- Children calculate the internal measure of an angle as 90 degrees based on a turtle turning 270 degrees (external angle).
Help your student become a(n) Angle Measurer
Activities challenge children to see an angle in a variety of contexts (part of shape, a turn in a road, or a door opening) and compare the sizes of angles that may have different side lengths (which can distract people of any age) or are at different orientations. Without instruction, this and higher levels may not be achieved even by the end of the elementary grades.
As the World Turns [Angle Measurer]
Roll, Slide, Stay