Teaching aid for college mathematics teaching

The utility model discloses a teaching aid for college mathematics teaching, including the set square, the front of set square is equipped with the recess, the front left side of recess is equipped with a groove, the books groove is installed on the positive right side of recess, movable buckle plate's front is equipped with hand slot. This teaching aid for college mathematics teaching, through recess, hand slot and movable buckle plate's cooperation, the teaching pen and teaching that the teacher can be placed in the cooperation in a groove and books groove this, make the set square have thememory function, when the teacher takes the set square, can put into the inner groovy with the palm, the finger is pressed down the movable block and is driven compression spring and inwards compressthe fly leaf and stablize the inserted bar in with, makes the finger lock in the inner groovy, has made things convenient for the set square of taking, has made things convenient for teacher's teaching. 本实用新型公开了种大学数学教学用教具，包括三角