This lesson plan is for a 7th grade math class on polygons. The objectives are for students to understand key concepts of geometry related to shapes, sizes, and their geometric relationships. Students should be able to create models of plane figures and solve problems involving sides and angles of polygons. The lesson will cover identifying different types of polygons based on their number of sides, vertices, and angles. It includes activities where students name and classify polygons, as well as determine sums of interior and exterior angles. The teacher will assess student understanding through an activity worksheet.