Suitable for Grades: 4th Grade
CCSS: 4.G.A.1, 4.G.A.2
CCSS Description: Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
This worksheet gives a practical method of comparing angles. It shows learners how to construct 45 and 135 degree angles from a rectangular piece of paper and asks them to use these to compare with angles on the worksheet. Learners need to use their paper angles to decide which of the angles in the table are less than, more than, or equal to 45, 90, and 135 degrees.