Lesson Plan
EngageNY

Problem Solving and the Coordinate Plane

For Students 6th Standards
Class members investigate rectangles on the coordinate plane. They determine the length of line segments in the coordinate plane with the same x-coordinate or same y-coordinate and then solve geometric problems involving perimeter...
Lesson Plan
Curated OER

Narrow It Down

For Teachers K - 4th
Ever played 20 Questions? A similar game helps young learners practice asking and answering yes-or-no questions. Spread out several objects, preferably all similar with slight variations (buttons or coins would work well). A leader...
Assessment
Inside Mathematics

Rugs

For Teachers 8th Standards
The class braids irrational numbers, Pythagoras, and perimeter together. The mini-assessment requires scholars to use irrational numbers and the Pythagorean Theorem to find perimeters of rugs. The rugs are rectangular, triangular,...
Worksheet
Curated OER

Identify Different Types of Triangles

For Students 5th - 6th
In this geometry worksheet, students identify different kinds of triangles. Students are given four triangles with their measurements and are to determine which triangle it is by choosing from six different kinds.
Worksheet
Curated OER

Geometry Skills: Solid and Plane Figures

For Students 7th - 10th
In this geometry skills activity, students respond to 4 questions that require them to examine geometric figures and change them to solid figures and plane figures.
Worksheet
Curated OER

Calculate the Perimeter

For Students 5th - 6th
In this geometry skills worksheet, students solve 4 problems that require them to calculate the perimeter of 4 geometric shapes.
Worksheet
Curated OER

Earth Science Regents: The Ellipse

For Students 7th - 11th
Starting with the instructions to draw an ellipse, and with great pictures, this sheet should help your pupils learn the shapes and measurements involved. Using push pins and string, your class can discover the axis and focus points...
Worksheet
Western Education

Math Poems

For Students 6th - 8th Standards
The logic, rhythm, and beauty of math sometimes get lost amidst numbers and variables. Amplify math's lyricism with a poetry project that uses metaphors and similes to compare mathematical concepts to other images.
Worksheet
Curated OER

2D and 3D figures

For Students 3rd - 4th
In this 2D and 3D figure worksheet, students name different shapes and decide if they are polygons or not. Students complete 8 problems.
Lesson Plan
Curated OER

Geometry Digital Blogging Books

For Teachers 10th - Higher Ed
Students observe geometric shapes in their everyday lives.  In this middle school/high school mathematics activity, students use their cell phone to record and publish their observations about the geometric shapes they...
Worksheet
Curated OER

Identifying Shapes: Top, Middle, Bottom

For Students K
In this identifying shapes:  top, bottom, middle worksheet, students circle the correct word to indicate the position of the colored shape, either top, bottom or middle.
Worksheet
Curated OER

Compare Area and Perimeter of 2D Shapes

For Students 5th - 6th
For this area and perimeter worksheet, students compare area and perimeter, determining which shapes has the greater perimeter or area. A reference web site is given for additional activities. 
Lesson Plan
Curated OER

Building Shapes From Numbers

For Teachers 5th - 8th
Learners experience how to illustrate some of the many connections between number and geometry. Through this 2-3 day focus on square numbers and triangular numbers, students make connections among mathematical topics.
Lesson Plan
Curated OER

Tantalizing Tangrams

For Teachers 3rd - 5th
Students identify polygons and develop spatial and fractional relationships and geometric concepts by using ancient Chinese puzzle of tangrams. They develop an appreciation of the folktale by identifying its elements and then writing...
Lesson Plan
Curated OER

Identify Polygons: Algebra/Geometry Institute

For Teachers 8th
Eighth graders classify geometric figures.  In this polygon lesson, 8th graders identify given geometric figures.  They compare and contrast different polygons.  Students name line segments, identify parallel lines, and...
Lesson Plan
Curated OER

The Truth About Triangles And Proofs

For Teachers 9th - 12th
High schoolers engage in a lesson that is about the classification of triangles and the mathematical proofs involved in working with them. They work on a variety of problems that are created by the teacher with the focus upon the...

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