Unit Plan
Khan Academy

Khan Academy: Symmetry of 2 D Shapes

For Students 9th - 10th
Analyze various shapes according to their reflective and rotational symmetries. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Saddleback College

Algebra2go: Finding Area Problem Sets

For Students 9th - 10th
This resource has three sets of problems. Each set has six questions for finding area of irregular shapes formed by line segments. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem....
Activity
University of Cambridge

University of Cambridge: Maths and Sports: Sports Equipment

For Students K - 1st Standards
Sports such as hockey, football, basketball and tennis use balls of different sizes. Can you arrange a selection of different balls in a line each touching the next to make the shortest line? This activity offers opportunities for...
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Rectangles, Squares, Circles, and Triangles

For Students 1st - 2nd Standards
[Free Registration/Login may be required to access all resource tools.] The video discusses a brief overview of circles, rectangles, squares, and triangles and helps students determine which shape is shown and why. The video is followed...
Activity
Math Open Reference

Math Open Reference: Circles

For Students 9th - 10th Standards
A complete reference guide to circles including parts, angles, and arcs. It provides definitions and interactive activities that enhance further explanation.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of Regular Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to calculate the area and perimeter of regular polygons. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Segments From Secants

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Apply the Two Secants Segments Theorem.
Unit Plan
BBC

Bbc Skillswise: Shapes: 2 D Shapes

For Students 9th - 10th Standards
Learn how to recognize 2d shapes.
Lesson Plan
Alabama Learning Exchange

Alex: Swimming Pool Math

For Teachers 9th - 10th Standards
Students will use a swimming pool example to practice finding perimeter and area of different rectangles.
Lesson Plan
Alabama Learning Exchange

Alex: Circling Around

For Teachers 6th - 8th Standards
Students will calculate the diameter, circumference, and ratio of a real world object. Students will create an electronic slideshow to illustrate the process of determining the diameter, circumference, and ratio of these objects.
Lesson Plan
Alabama Learning Exchange

Alex: Have Your Math and Eat It, Too!

For Teachers 6th - 8th
In this two-day lesson plan, students will collaborate to create a healthy pizza using only geometric items that have been precisely measured. Students must identify the items as triangle, quadrilateral (parallelogram), or cube. Next,...
Lesson Plan
Alabama Learning Exchange

Alex: Search the Perimeter and Secure the Area

For Teachers 6th - 8th Standards
This lesson will not only help students compare and contrast the concepts of area and perimeter, but it will also move toward the concept that area is maximized while minimizing perimeter with a square.
Lesson Plan
Alabama Learning Exchange

Alex: Shaping the Future

For Teachers 6th - 8th Standards
Students will utilize new found knowledge of architectural design and engineering to apply math and science skills in building a structure. By using interactive websites, they will create scale drawing plans and design and engineer a...
Lesson Plan
Alabama Learning Exchange

Alex: The Pythagorean Theorem in the Real World

For Teachers 9th - 10th Standards
The introduction of this activity has students verifying the famous Pythagorean Theorem with a hands-on proof. Students will then apply the Theorem in one of two ways: by solving for the side lengths of a right triangle and by...
Lesson Plan
Alabama Learning Exchange

Alex: Characteristics of Quadrilaterals

For Teachers 9th - 10th Standards
Learners will begin unit on quadrilaterals with basic overview of characteristics of parallelograms, rectangles, squares, rhombi, and isosceles and non-isosceles trapezoids. After the word wall is made, the teacher can use interactive...
Lesson Plan
Alabama Learning Exchange

Alex: What Do We Have in Common?

For Teachers 9th - 10th
This inquiry lesson explores the definitions of quadrilaterals and the properties of the diagonals of quadrilaterals to classify quadrilaterals. Students will work cooperatively to justify conclusions. This lesson plan was created by...
Lesson Plan
Alabama Learning Exchange

Alex: Discovering Pi

For Teachers 6th - 8th
This lesson allows students to discover the number Pi. By measuring real life objects, students will get to see where the number Pi comes from as well as how the circumference formula is derived.This lesson plan was created as a result...
Lesson Plan
Alabama Learning Exchange

Alex: How Tall Is the School's Flagpole?

For Teachers 9th - 10th Standards
The purpose of this lesson is to help students apply math concepts concerning similar triangles and trigonometric functions to real life situations. The students learn how to take these concepts and use them to find measurements of...
Lesson Plan
Better Lesson

Better Lesson: Find Closed Shapes

For Teachers K Standards
Students understand what a closed shape is and identify different shapes in the environment by name.
Lesson Plan
Better Lesson

Better Lesson: Area of Composite Shapes

For Teachers 6th Standards
Sixth graders take their knowledge about area of rectangles, squares and triangles and apply it to parallelograms, trapezoids, and composite shapes.
Lesson Plan
Better Lesson

Better Lesson: Spotting Two Dimensional Shapes

For Teachers 2nd Standards
Second graders will be able to identify 2-dimensional shapes and tell the number of vertices and sides.
Handout
Geometry Help

Geometry Help: Area of Geometric Shapes

For Students 9th - 10th Standards
Explains the basic concept of the area of geometric shapes with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Unknown Type
Khan Academy

Khan Academy: Density Word Problems

For Students 9th - 10th Standards
Solve problems concerning real-world situations using your knowledge of volume, surface area, and density.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 7.8 Triangles in Applied Problems

For Students 9th - 10th Standards
Explore some problems you can solve with your knowledge of triangles and trigonometry.

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