Area of a Polygon Teacher Resources
Find Area of a Polygon educational ideas and activities
Showing 1 - 20 of 255 resources
Find the Area of a Polygon Using Multiplication
Use prior experience with the array model of multiplication to teach young mathematicians how to find the area of rectangles in the first video of this four-part series. Multiple examples are presented that clearly demonstrate this process using visual models.
3 mins 2nd - 4th Math CCSS: Designed
That Area is So Regular
Young scholars explore the concept of area. In this area lesson, students determine the area of regular polygons on their Ti-Nspire. Young scholars find the area of triangles, pentagons, hexagons, and heptagons. Students use trigonometric relationships to find the area of the regular polygons.
9th - 12th Math
Finding the Area of Regular Polygons
Learners analyze relationship between the increase in polygons sides and a circle. In this geometry instructional activity, students relate the size of the central angle of a polygon, to a circle. They compare the formula for the area of a polygon and a circle.
9th - 12th Math CCSS: Designed
Area of a Regular Polygon
Students develop formulas for finding area of regular polygons. In this developing formulas for finding area of regular polygons lesson, students use Cabri Jr. to construct hexagons and octagons. Students construct triangles within these shapes in order to find the area.
9th - 12th Math
Shapes and Their Insides
Learners follow a series of instructions for drawing and coloring different shapes in order to learn the difference between the perimeter and area of a polygon. Then they are asked to find the perimeter and area of a 3x4 rectangular array, while explaining in their own words what part of the shape they measured for each.
2nd - 4th Math CCSS: Designed
Explore the concept of area of shapes. Learners will find the area of triangles, squares, and rectangles using a geoboard application on the graphing calculator. They will also find the area of trapezoids and other irregular shapes by dividing the trapezoids into two or more triangles.
6th - 8th Math
If the Shape Fits
Geometers juggle the idea of polygons. Using a game and manipulatives, they make trapezoids and irregular polygons. They review the algorithms for finding the areas of squares and rectangles. On day one, they find the area of trapezoids, and on day two they find the area of irregular polygons.
5th - 6th Math CCSS: Adaptable
Find the Area of a Polygon Using a Key
The third video in this series of four focuses on the next level of complexity with finding area: using a key where one section of a picture represents more than one square unit. A review of using a key with a graph to count by 10s begins the lesson.
4 mins 2nd - 4th Math CCSS: Designed
From the Center of the Polygon
Students explore the concept of area of polygons. In this area of polygons lesson, students use their Ti-Nspire to find the area of regular polygons. Students break down each regular polygon into triangles and determine the area of each polygon by finding the area of the triangles.
9th - 12th Math