Learners of all ages investigate area and perimeter through pentominoes. In this geometry lesson, students calculate the are and perimeter of different geometric shapes and describe the properties of similar and congruent shapes. This...

First graders are introduced to pentominoes in this instructional activity. Using the Internet, they match pentominoes with the same shape and use a grid sheet to make their own. They are read books by their teacher and they identify the...

Fourth graders demonstrate lines of symmetry using polygons, pentominoes, and block letters of the alphabet. They describe, identify, and analyze characteristics and properties of geometric shapes.