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McGraw Hill

Glencoe: Self Check Quizzes 1 Area of Triangles

For Students 9th - 10th
Use Glencoe's randomly generated self-checking quiz to test your knowledge of finding the area of a triangle. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...
Unknown Type
Houghton Mifflin Harcourt

Holt, Rinehart and Winston: Homework Help: Perimeter and Area of Triangles and Trapezoids

For Students 9th - 10th Standards
Get independent practice working with finding the perimeter and area of triangles and trapezoids. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area and Perimeter of Triangles

For Students 6th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students use formulas and given information to figure out the dimensions and the area of different triangles. Students examine guided notes, review...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area and Perimeter of Triangles

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

Khan Academy: Area of Triangles

For Students 6th - 8th Standards
In this exercise, students practice finding the area of triangles. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Areas of Triangles

For Students 9th - 10th
Thirteen problems offer practice finding the areas of triangles. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check each...
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.
Unit Plan
Khan Academy

Khan Academy: Area of Triangles

For Students 5th - 7th Standards
Practice finding the area of right, acute, and obtuse triangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of Composite Shapes Involving Triangles

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find areas of combined figures involving triangles. Students examine guided notes, review guided practice, watch instructional videos and...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Area Grades 6 7

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Find the areas of triangles given their base and height dimensions.
Unknown Type
Khan Academy

Khan Academy: Areas of Shapes on Grids

For Students 6th - 8th Standards
In this exercise, students practice finding the areas of shapes on grids. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Whiteboard
SMART Technologies

Smart: Area of a Triangle

For Teachers 5th - 8th Standards
This SMART whiteboard activity will help students learn the formula for finding the area of a triangle. Students will practice what they have learned by using examples created for visual and kinesthetic learners.
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.
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.
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Khan Academy

Khan Academy: Use Pythagorean Theorem to Find Area and Perimeter

For Students 7th - 8th
Find the area and perimeter of triangles and quadrilaterals by first using the Pythagorean Theorem to find missing side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...
Unit Plan
Khan Academy

Khan Academy: Area of Right Triangles

For Students 5th - 7th Standards
Find the area of right triangles Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
National Council of Teachers of Mathematics

Nctm: Illuminations: Igd: Area of a Triangle

For Students 9th - 10th
Use this interactive tool to learn how to find the area of a triangle. Click on "Instructions" for details on how to use this tool. Click on "Explore" for more ideas. [Requires Java.]
Lesson Plan
Better Lesson

Better Lesson: Finding the Area of a Trapezoid

For Students 6th Standards
Sixth graders find the area of a trapezoid by decomposing it into triangles and using the formula
Whiteboard
ClassFlow

Class Flow: Area of Triangles

For Teachers 3rd - 5th Standards
[Free Registration/Login Required] This flipchart explores the formula for finding the area of a triangle. Examples and hints are given to help students. A video clip is included, showing how to find the height of a triangle, given the...
Activity
Maths Challenge

Maths challenge.net: Circumscribed Triangle

For Students 9th - 10th Standards
Find the area of this circumscribed triangle with your geometry skills.
Unknown Type
That Quiz

That Quiz: Practice Test: Triangles

For Students 9th - 10th Standards
Test your knowledge on the attributes of triangles. There are eleven levels that may be completed with or without a timer.
Unit Plan
Khan Academy

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

For Students 5th - 7th
Find the base or height of a triangle 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
CK-12 Foundation

Ck 12: Geometry: Triangle Area Grade 7

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Find the area of different triangles given the base and the height.
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.