Georgia standard · Mathematics

`3.GSR.7`Rectangle Area Concepts

Identify area as a measurable attribute of rectangles and determine the area of a rectangle presented in real-life, mathematical problems.

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Expectations

3.GSR.7.1
Investigate area by covering the space of rectangles presented in realistic situations using multiple copies of the same unit, with no gaps or overlaps, and determine the total area (total number of units that covered the space).
3.GSR.7.2
Determine the area of rectangles (or shapes composed of rectangles) presented in relevant problems by tiling and counting.
3.GSR.7.3
Discover and explain how area can be found by multiplying the dimensions of a rectangle.

Mathematics Grade 3 (EOG) · Geometric & Spatial Reasoning
Identify area as a measurable attribute of rectangles and determine the area of a rectangle presented in real-life, mathematical problems.
about 14% of the test · 8 points These points are shared with other standards, so count them once and never add them up per standard.

Georgia's Achievement Level Descriptors. The levels are cumulative: each includes the ones before it. Proficient is on grade level.

Beginning: Determine the area of a rectangle by tiling and counting.
Developing: Determine the area of a rectangle by tiling and counting to solve relevant problems. Given a visual model, determine the area of a rectangle by using multiplication.
Proficient: Determine the area of a rectangle by using multiplication to solve real-life problems. Create a visual model for the area of a rectangle from a verbal description, and explain that multiplication can be used to find the area of a rectangle because of the connection with repeated addition and counting tiles.
Distinguished: Solve relevant multi-step real-life problems involving the areas of rectangles.

Grade 2 · 2.GSR.7
Draw and partition shapes and other objects with specific attributes, and conduct observations of everyday items and structures to identify how shapes exist in the world.
Grade 3 · 3.GSR.7 (this standard)
Identify area as a measurable attribute of rectangles and determine the area of a rectangle presented in real-life, mathematical problems.
Grade 4 · 4.GSR.7
Investigate the concepts of angles and angle measurement to estimate and measure angles.