Investigating activity. Students work in pairs to find polygons within the school or district web site.
Students identify polygons on the web site and discuss shape, size, number of sides, angles.
2 Relevence: Identify who might use measurements and polygons in real life
Teachers ask who might use Polygons and measurements in real life.
Students discuss who might use these techniques in real life and for what reason.
3 Independent Practice
Have students work in pairs to find a polygon in the Classroom. Students will select a polygon of choice and use explain everything to explain how to calculate perimeter.
Students work in pairs to select a polygon in the classroom. They will use this object to calculate perimeter on the object and describe the calculation using Explain Everything.
The video should include:
- a picture of the object
- Identify the shape
- Identify the number of sides
- The calculation written
- an audio narrative of the calculation
Student's share video through airplay.
Key Standards Supported
Measurement And Data
|3.MD: Geometric Measurement: Recognize Perimeter As An Attribute Of Plane Figures And Distinguish Between Linear And Area Measures.|
|3.MD.8||Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters.|