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Area of Irregular Shapes Teacher Resources
Find Area of Irregular Shapes educational ideas and activities
Students explore the concept of area. In this area lesson, students find the area of irregular shapes with right angles. Students break down each irregular shape into multiple regular shapes in order to find the area. Students challenge themselves by coming up with multiple ways to solve each area problem.
For this irregular shapes worksheet, 10th graders solve 10 different problems that include determining the area of various irregular shapes as shown in each. First, they divide each figure into familiar shapes. Then, students determine the area of each of those shapes. Finally, they find the sum of the areas.
Acquaint mathematicians to the concept of probability with a discussion about the results of a game. Then have them play a dice, card, spinner, or coin game and recording the number of wins vs. the number of tries on an interactive web page. Discussion notes and graphics are provided to guide your lecture. At the bottom of the page, there are alternate suggestions and links to related lessons by the same publisher. If you have access to a computer lab, this will add variety to your curriculum.
Young geometers use technology (Geometer’s Sketchpad) to explore the Pythagorean Theorem and analyze different proofs. Students work in small groups to gain insight into the relationships of the sides of right triangles by constructing and measuring a variety of right triangles, using GSP to prove the theorem, and solving a number of different problems.
Sixth graders examine the causes of the stock market crash of 1929. In this integrated math/history unit on the stock market, 6th graders study, research, and read stocks, visit a local bank, and create a PowerPoint to show the finished product. Lesson is written specifically to South Carolina resources, but can be easily adapted.
Area and perimeter are all around us! Learners engage in a series of activities to learn how they can determine both. They watch the teacher show how to find perimeter and area and then use and Excel worksheet and pieces of candy to practice their new skill. This lesson is OK, but it would be just as effective if they simply determined the area and perimeter of objects in their classroom.
What does popcorn have to do with math? Seventh grade mathematicians are provided an opportunity to develop a conceptual understanding of the formula for volume and to use it as a tool to solve problems. The lesson begins with a hands-on demonstration to see the solution to which box holds more popcorn.