## 3.2 **Measurement—Plane Figures: Area and Attributes**

**Geometric measurement: understand concepts of area and relate area to multiplication and to addition.**

**Measurement and Data 3.MD**

3.MD.5 Recognize area as an attribute of plane figures and understand concepts of area measurement.

a. A square with side length 1 unit, called “a unit square,” is said to have “one square unit” of area, and can be used to measure area.

b. A plane figure which can be covered without gaps or overlaps by

*n*unit squares is said to have an area of

*n*square units.

__area partners__-click here

__CALCULATUE AREA ONLINE-__CLICK HEREMEASUREMENT-

**CLICK HERE**

PERIMETER & AREA-

**CLICK HERE**

**Geometry 3.G**

**Reason with shapes and their attributes.**

3.G.1 Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

__SHAPE GAMES-__

**CLICK HERE**SORTING QUADRILATERALS-

**CLICK HERE**

__Quadrilateral quest__

**-click here**

__sorting 2d shapes__

**-click here**

__-click here__

**3d earth exploration**

__geometry baseball__-click here**Essential questions**

• What is area measurement?

• How can you use visual models to demonstrate square units in a plane figure?

• Why is area measured in square units?

• How can you compare categories with shared attributes?

• How do you find the area of a given object?