Fourth Grade Math
8) Geometry and spatial reasoning. The student identifies and describes attributes of geometric figures using formal geometric language. The student is expected to:
(A) identify and describe right, acute, and obtuse angles
URL to video: https://www.youtube.com/watch?v=L2rJRDTfN0g
Summary: This video provides students with a song about the various types of angles. In the fourth grade, students are expected to identify acute, right, and obtuse angles as well as straight lines. This video gives a description of the angles as well as attributes of all angles. For example: an angle is two rays connecting at an endpoint.
Instructional Strategy: I would use this song at the beginning of a unit on angles. It would be a fun way to start off the new concept and who doesn’t love learning new topics through song? I would print each student a copy and we could learn the song together over the course of a few days. The song wouldn’t be the whole lesson though. I would also provide students with instruction as well as other assignments. After students have mastered the concept of identifying the various types of angles, I could take them on an angle walk around the classroom and school. As they look for the various types of angles, they could sing the song to help them remember which angle has what qualities. While the concept of learning to identify angles comes easy for many students, others may require more time to understand which is which. I think that this song is a fun way to help all students learn to identify angles better.