This activity includes 8 QR code cards. Students are asked to measure each angle with a protractor and write their answer on the answer sheet (included) along with the type of angle (obtuse, acute, straight, right). They can check their answers by scanning the QR code with a tablet or other mobile devise with a QR code reading app. An answer key is also included.
This activity can be used as a review for a test or as a math center. Print and laminate cards and tape them around the room.
Aligns with Common Code Standard: 4.MD.6