Standard #: MA.3.GR.2.2


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Find the area of a rectangle with whole-number side lengths using a visual model and a multiplication formula.


Clarifications


Clarification 1: Instruction includes covering the figure with unit squares, a rectangular array or applying a formula.

Clarification 2: Two-dimensional figures cannot exceed 12 units by 12 units and responses include the appropriate units in word form.



Related Courses

Course Number1111 Course Title222
5012050: Grade Three Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712040: Access Mathematics Grade 3 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012055: Grade 3 Accelerated Mathematics (Specifically in versions: 2019 - 2022, 2022 and beyond (current))
5012015: Foundational Skills in Mathematics 3-5 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))


Related Access Points

Access Point Number Access Point Title
MA.3.GR.2.AP.2 Find the area of a rectangle with whole-number side lengths by counting unit squares. Explore that the area is the same as what would be found by multiplying the side lengths.


Related Resources

Formative Assessments

Name Description
Using Arrays to Model the Distributive Property

Students are presented with a rectangular area model and asked to write an equation that represents the distributive property.

Cover Me

Students determine the area of a rectangle in two different ways.

Lesson Plans

Name Description
Best Vegetable Garden

The students will plan a vegetable garden, deciding which kinds of vegetables to plant, how many plants of each kind will fit, and where each plant will be planted in a fixed-area garden design. Then they will revise their design based on new garden dimensions and additional plant options.  Students will explore the concept of area to plan their garden and they will practice solving 1 and 2-step real-world problems using the four operations to develop their ideas.

Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. Click here to learn more about MEAs and how they can transform your classroom.

Same Perimeter, Different Area

In this lesson, students are presented with a problem that requires them to create rectangles with the same perimeter but different areas.  Students also search for relationships among the perimeters and areas of different rectangles and find which characteristics produce a rectangle with the greatest area.

Bre and Brent the Builders

The students will be able to use prior knowledge of the concept of area to relate area to multiplication and discover the formula: base x height. Students will practice by composing two-dimensional squares and rectangles and apply the area formula to build a birdhouse.

Area Isn't Just for Squares

This lesson helps students make the connections between area and multiplication using square tiles.

Original Student Tutorial

Name Description
Terrific Tiling

Learn how tilling can be used to find the area of different rectangular rooms in this interactive tutorial.

Student Resources

Original Student Tutorial

Name Description
Terrific Tiling:

Learn how tilling can be used to find the area of different rectangular rooms in this interactive tutorial.



Printed On:12/9/2022 10:04:01 AM
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