Montana Common Core Standards
Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
4.G.1. Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
MT.CC.4.MD. Measurement and Data
Geometric measurement: understand concepts of angle and measure angles.
4.MD.5. Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:
4.MD.5.a. ed a “one-degree angle,” and can be used to measure angles.
4.MD.5.b. An angle that turns through n one-degree angles is said to have an angle measure of n degrees.
4.MD.6. Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.