Identifying Types of Triangles

The resource is aimed at KS3 students, though it would be helpful as revision for low ability GCSE students. Students are given a number of triangles and have to identify whether the largest angle is acute, a right-angle or obtuse and whether the triangle has two or three equal sides. The students cut out the triangles and glue them into the correct part of a grid. This means that every student can have a record of his or her work. The activity ends with some questions as to why certain boxes in the grid must be left empty.