Curated OER
Math Aptitude Test
In this algebra worksheet, 9th graders are given an aptitude test on basic mathematical concepts using words problems and real life scenarios. There are 33 problems in this worksheet.
Curated OER
My Test Book: Geometry Skills 2
In this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding geometry skills. Students may submit their answers to be scored.
Curated OER
Fun Ideas for Getting A-Round in Math CIRCLES
Students see circles in real life and have fun with them
Curated OER
Travel Problems
This worksheet is actually an entire chapter focused on math problems involving, shortest path, minimum connector, traveling salesman, and Chinese postman problems. There are multiple activities, exercises, and examples to get students...
Curated OER
Quilt Squared
Students study West Virginia quilts. In this mathematics instructional activity, students use symmetry, geometric shapes, and patterns to create their own quilt square.
Curated OER
Tessellation Lesson Plans
Students in second through eighth grades can fill their imaginations with repeating shapes!
McGraw Hill
Glencoe: Self Check Quizzes 1 Area of Triangles
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...
CK-12 Foundation
Ck 12: Interactive Geometry: 17.5 Sine to Find the Area of a Triangle
Learn how to sine to find the area of a triangle.
Better Lesson
Better Lesson: Finding the Area of a Triangle
Sixth graders find the area of a triangle using square units and the area formula.
National Council of Teachers of Mathematics
The Math Forum: Find the Area of the Shape!
Try to figure out the area of this challenging shape. In order to view the images, you will need to use JavaSketchpad.
Better Lesson
Better Lesson: Finding the Area of a Trapezoid
Sixth graders find the area of a trapezoid by decomposing it into triangles and using the formula
Better Lesson
Better Lesson: Area of Triangles
Sixth graders apply what they know about area of other polygons to develop a formula for finding the area of a triangle.
Illustrative Mathematics
Illustrative Mathematics: G Srt Finding the Area of an Equilateral Triangle
This task examines how to calculate the area of an equilateral triangle two ways: using triangle congruence and using trigonometric ratios. Aligns with G-CO.C.10 and G-SRT.C.
Math Is Fun
Math Is Fun: Area of Triangles Without Right Angles
Learn how to find the area of triangles without right angles. Find the formula to use depending on the information you know about the triangle: base and height, three sides, or two sides and an angle.
Khan Academy
Khan Academy: Area of Triangles
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.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Areas of Triangles
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...
Better Lesson
Better Lesson: Finding the Area Review and Assessment
Sixth graders find the area of rectangles, triangles, parallelograms, and trapezoids by using formulas or by composing into rectangles or triangles.
National Council of Teachers of Mathematics
Nctm: Illuminations: Area of Triangles
To find the area of a triangle, try to make a parallelogram using a copy of the triangle.
CK-12 Foundation
Ck 12: Geometry: Area and Perimeter of Triangles
[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...
CK-12 Foundation
Ck 12: Geometry: Area and Perimeter of Triangles
[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...
Khan Academy
Khan Academy: Area of Triangles
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.
Shodor Education Foundation
Shodor Interactivate: Triangle Explorer
This applet allows users to study the nature of triangles and their area. It draws random triangles on a Cartesian coordinate system. The user can determine the area of the triangle using his or her preferred method. After the calculated...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help: Perimeter and Area of Triangles and Trapezoids
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.
CK-12 Foundation
Ck 12: Geometry: Triangle Area Grades 6 7
[Free Registration/Login may be required to access all resource tools.] Find the areas of triangles given their base and height dimensions.