Unit Plan
Khan Academy

Khan Academy: Area of Rectangles

For Students 2nd - 4th Standards
Find area of rectangles and squares by multiplying side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Transition From Unit Squares to Area Formula

For Students 2nd - 4th Standards
Find the area of rectangles by multiplying side-lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Handout
Quia

Ixl Learning: Squares

For Students 3rd - 5th Standards
Brush up on your math skills relating to squares then try some practice problems to test your understanding.
Handout
Wolfram Research

Wolfram Math World: Squares

For Students 9th - 10th Standards
MathWorld provides multiple definitions and formulas for the mathematical term, square.
Activity
Other

Basket Math: Perimeter Practice

For Students 3rd - 5th Standards
Use this interactive site to practice finding the perimeter of a square.
Unit Plan
Analyze Math

Analyze Math: Geometry Problems on Squares

For Students 9th - 10th Standards
The geometry tutorial investigates word problems on squares with detailed solutions. Topics included are perimeter and area of a square.
Handout
Math Open Reference

Math Open Reference: Area of a Square

For Students 9th - 10th Standards
A complete reference guide to finding the area of a square. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Activity
The Math League

The Math League: Area and Perimeter

For Students 9th - 10th Standards
This tutorial provides a brief introduction about what area is, then gives the formulas for area of a square, rectangle, parallelogram, trapezoid, triangle, and circle. Examples of each formula are provided.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 6.rp Converting Square Units

For Teachers 6th Standards
In this task, 6th graders must inches to feet in order to find the area of a rectangular board and explain the error in the calculations made by the board owner. Aligns with 6.RP.A.3.
Whiteboard
ClassFlow

Class Flow: 12 Squares Investigations

For Teachers 6th - 8th Standards
[Free Registration/Login Required] In this lesson students investigate the relationship between meeting points and the perimeter of shapes by joining 12 squares.
Unknown Type
Math Slice

Math Slice: Area & Perimeter: Math Worksheets

For Students 3rd - 5th Standards
This tool allows you to create worksheets of word problems at varying levels of difficulty where students must calculate the area or perimeter of different polygon shapes. You can choose to set up the page using any of these polygon...
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Igd: Area of a Rectangle

For Students 3rd - 8th Standards
Use this interactive tool to learn how to find the area of a rectangle. Click on "Instructions" for details on how to use this tool. Click on "Explore" for more ideas.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Areas of Rectangular Composite Figures Overlap 1

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] A video and practice questions where students are presented with one or more smaller rectangles within a larger one. They must calculate the area of the larger...
Activity
Texas Instruments

Texas Instruments: Dimensional Figures

For Teachers 6th - 8th Standards
Students use the Explorer Draw application to draw two-dimensional figures. They understand how to write commands to draw squares and hexagons. They also calculate the perimeter of the figures drawn. [Requires Adobe Reader.]
Unknown Type
Khan Academy

Khan Academy: Find Area With Partial Unit Squares

For Students 6th - 8th
Count unit squares and partial unit squares to find the area of shapes.
Handout
Quia

Ixl Learning: Area of Rectangles

For Students 3rd - 5th Standards
Brush up on your math skills relating to the area of rectangles then try some practice problems to test your understanding.
Lesson Plan
Better Lesson

Better Lesson: Finding the Area of a Triangle

For Teachers 6th Standards
Sixth graders find the area of a triangle using square units and the area formula.
Lesson Plan
Better Lesson

Better Lesson: Finding the Area of a Parallelogram

For Teachers 6th Standards
Sixth graders find the area of parallelograms by using square units and the area formula.
Unit Plan
Khan Academy

Khan Academy: Area of Rectangles With Fraction Side Lengths

For Students 4th - 6th Standards
Practice computing the areas of rectangles that have fractional side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Sophia Learning

Sophia: Calculating the Surface Area of Pyramids

For Students 6th - 8th
Surface area of pyramids is explored in this video resource. The lesson includes three detailed examples using a square, hexagonal, and triangular pyramid.
Activity
Discovery Education

Discovery Education: Web Math: Find Out Things About a Square

For Students 9th - 10th
WebMath will calculate the side length, diagonal length, perimeter, area, or volume, given the side, perimeter, diagonal, or area. This site also displays formulas for a square.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Unknown Dimensions Using Formulas Grade 7

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Given a perimeter or area of a figure, use formulas to solve for the unknown or missing dimensions.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Partitioning Composite Figures Into Rectangles to Find Area 1

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to partition a shape into rectangles and add their areas together to get the area of the whole figure. Includes video...
Unit Plan
Khan Academy

Khan Academy: Represent Rectangle Measurements

For Students 3rd - 5th Standards
Label the given measurements in a diagram. Find the side length of a square when given the area. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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