|Frame from Creative Clips by Krista Wallden|
Today’s activity is super simple but adds a little variety to your basic angle classification/ measurement lesson. The activity emphasizes the use of Judy Clocks, those cute little geared clocks that you don’t find much use for except during your time unit. “Clock Angles” requires students to use the hands on a Judy Clock, or other geared clock, to determine the angle formed by the hands. After students have experience classifying the angles, students use protractors to measure them.
- 4.G.A.1- Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
- 4.MD.C.6- Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
This activity not only emphasizes representing clock time correctly but identifying angles as well. The picture below shows the activity sheet for this lesson. In Part I, students classify the angles as either acute, right, obtuse, or straight. In Part II, students use a geared clock to represent the time and then classify the angle.