Curated OER
Tomb Robbers
Sixth graders identify benchmark angles as they are embedded into a circle grid. They observe the teacher using an angle ruler and complete a Star Spangled worksheet, play the game Tomb Robbers, and as a class discuss their game winning...
Khan Academy
Khan Academy: Benchmark Angles
Estimate the size of angles when given a picture or a situation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.