This 3rd-grade math lesson focuses on introducing students to the concept of perimeter. The lesson begins with an engaging discussion to elicit prior knowledge and define perimeter as the distance around a shape. Through guided practice, students use rulers and measuring tools to measure the sides of given polygons and calculate their perimeters by adding the lengths together.
Students then participate in an independent activity where they choose an object in the classroom, measure its sides using string or yarn, and calculate its perimeter. The lesson concludes with students sharing their findings and reflecting on their learning experiences. Assessment includes observation of group interactions, reviewing completed worksheets for measurement accuracy, and evaluating exit tickets to gauge individual understanding. Differentiation strategies are in place to support varying skill levels, ensuring all students can engage meaningfully with the content. Overall, students will gain practical measurement skills and a solid understanding of perimeter through interactive activities.
| Level | Elementary School |
| Grade | 3rd Grade |
| Subject | Math |
| Subject Area | Measurement |
| Subject Topic | Perimeter |
| Age Range | 8 to 9 |
| Audience | Group |
| Language | English |
| Duration | 60 mins |