Activity
National Council of Teachers of Mathematics

The Math Forum: Find the Area of the Shape!

For Students 3rd - 8th Standards
Try to figure out the area of this challenging shape. In order to view the images, you will need to use JavaSketchpad.
Handout
Quia

Ixl Learning: Area of Parallelograms

For Students 6th - 7th Standards
Brush up on your math skills relating to the area of parallelograms then try some practice problems to test your understanding.
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 Parallelograms

For Students 5th - 7th Standards
Practice finding the area of parallelograms given base and height. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Scholastic

Scholastic: Study Jams! Math: Measurement: Area of a Parallelogram

For Students 5th - 6th Standards
Determine the area of a parallelogram with this step by step interactive lesson.
Activity
Texas Instruments

Texas Instruments: Pearson Prentice Hall: Areas of Parallelograms and Triangles

For Teachers 9th - 10th
Students will find the area of a parallelogram and the area of a triangle.
Activity
Texas Instruments

Texas Instruments: The Area of the Trapeziod

For Teachers 9th - 10th
This activity is a based on an activity I saw in Exploring Geometry with the Geometer's Sketchpad. Student will construct a trapeziod and then use rotation to create a parallelogram from the trapeziod. The follow up questions lead the...
Lesson Plan
Google

Google for Education: Area of a Circle

For Teachers 9th - 10th
Students learn to derive the formula for the area of a circle. They learn to relate a circle to a parallelogram and rectangle while learning the concept of infinity as they imagine slicing an circle into infinitesimally small slices.
Unit Plan
Texas Education Agency

Texas Gateway: Area of Triangles, Parallelograms, and Trapezoids

For Students 5th - 7th
These activities provide an opportunity for students to explore the area formulas for triangles, trapezoids, and parallelograms.
Study Guide
Oswego City School District

Regents Exam Prep Center: Area of Polygons and Circles

For Teachers 3rd - 6th Standards
How would you find the area of a polygon or circle? Explore this concept with engaging activities at this test prep site. Here you will find detailed problem solving strategies with accompanying visuals, a reference table with formulas,...
Unit Plan
CK-12 Foundation

Ck 12: Unknown Dimensions of Parallelograms Grades 6 7

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Find the unknown dimensions of a parallelogram given its area and another measurement.
Activity
Texas Instruments

Texas Instruments: Getting Started With Area Formulas App

For Teachers 9th - 10th Standards
Calculate the Area of a Trapezoid This Concept Handheld Software Application reviews the definition and area formula for the rectangle, square, parallelogram, triangle, trapezoid, and circle.
Activity
BBC

Bbc: Area in General

For Students 4th - 7th Standards
You can pick up some valuable pointers on how to find the area of a triangle, rectangle, and other quadrilaterals. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
Handout
Quia

Ixl Learning: Area of Trapezoids

For Students 6th - 7th Standards
Brush up on your math skills relating to the area of trapezoids then try some practice problems to test your understanding.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Parallelogram

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a parallelogram given its base and height. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Parallelogram

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to find the area of a parallelogram. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Unit Plan
Khan Academy

Khan Academy: Find Missing Length When Given Area of a Parallelogram

For Students 5th - 7th
Find the base or height of a parallelogram when given the other and the area. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Texas Education Agency

Texas Gateway: Determining Area: Composite Figures

For Students 9th - 10th
Given information about composite fiugres, the student will determine the area of composite 2-dimensional figures comprised of a combination of triangles and parallelograms using appropriate units of measure.
Unit Plan
Mr. Martini's Classroom

Mr. Martini's Classroom: Area of Triangles, Trapezoids & Parallelograms

For Students 3rd - 8th Standards
Students solve for the area of rectangles, squares, triangles, trapezoids, and parallelograms.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Igd: Area of a Parallelogram

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

Ck 12: Perimeter of Parallelograms: Around a Trampoline

For Students 5th - 7th
[Free Registration/Login Required] Students move the points on the parallelogram to determine the perimeter. Click challenge me to answer practice questions and click learn more to watch a video.
PPT
Sophia Learning

Sophia: Estimating the Area of a Circle: Lesson 4

For Students 7th - 8th
This lesson explains how triangles and parallelograms can be used to estimate the area of a circle. It is 4 of 4 in the series titled "Estimating the Area of a Circle."
Unit Plan
Sophia Learning

Sophia: Estimating the Area of a Circle: Lesson 3

For Students 7th - 8th
This lesson explains how triangles and parallelograms can be used to estimate the area of a circle. It is 3 of 4 in the series titled "Estimating the Area of a Circle."
Unit Plan
Varsity Tutors

Varsity Tutors: Hotmath: Review: Area

For Students 9th - 10th Standards
Find a quick, concise explanation of area and the formulas for different shapes. An example is given to help you understand how find the area of a shape. The area formulas are listed for different types of shapes.