Students will investigate the concept of area by using “unit squares"(square cm, square m, square in, square ft) to determine the area of geometric figures such as, squares, rectangles, and irregular figures.

- slide 1 of 14
Without overlapping or leaving gaps, cover the geometric figures (squares, rectangles, and irregular figures) with “unit squares" (square cm, square m, square in, square ft). To determine the area of geometric figures, count the number of “unit squares" used to cover the figures.

**Lesson Objective:**The lesson is aligned to the Common Core State Standards for Mathematics – 3.MD.6 Geometric Measurement – Measure areas by counting unit squares (square cm, square m, square in, square ft).**Materials Required:**unit square, graph paper - slide 9 of 14
### Answers:

4. 25

5. 25 square centimeters

7. 18

8. 18 square centimeters

10. 20

11. 20 square centimeters

13. 22

14. 22 square centimeters

18. 16

19. 16 square centimeters - slide 10 of 14
- slide 13 of 14
### Answers

3. 8, 22, 15

4. 8 square meters, 22 square meters, 15 square meters

7. 36, 8, 18

8. 36 square inches, 8 square inches, 18 square inches

11. 24, 15, 27

12. 24 square feet, 15 square feet, 27 square feet - slide 14 of 14

#### Grade 3 Math Lessons on Geometric Measurement

- Finding the Area of Figures using Unit Squares: Grade 3 Math Lesson
- Finding the Area of Figures using Unit Squares: 3rd Grade Math
- 3rd Grade Math: Finding the Area of Rectangular Figures using Multiplication
- Finding the Area of Rectangular Figures in Real World Mathematical Problems: Grade 3 Lesson
- Finding Area using a Model of the Distributive Property: Math Lesson for Grade 3
- Finding the Area with Decomposition and Addition: 3rd Grade Math Lesson with Assessment