About This Lesson
A printable book about finding the missing interior angles of triangles. Photocopy the blank triangle template and ask your students to construct 4 to 6 triangles and show how to find the interior angles of a three-sided shape. You may use colored paper as an alternative. An example has been done for you. Cut them out and put them together as a triangular book. You may use this book as a production and once completed; as a display on your bulletin board.
Hands on Activity