Interactive
Concord Consortium

Electron Geometry

For Students 9th - 12th
It's time to whip your chemistry class into shape! Begin your study of molecular geometry with a colorful, 3-D interactive. The resource shows models of linear, trigonal planar, and tetrahedral molecules.
Lesson Plan
Curated OER

Shape Up

For Teachers 6th - 8th
Middle schoolers explore differents types of triangles and quadriaterals. In this polygon lesson, students  model identify and compare two and three dimensional geometric figures. Middle schoolers create tangrams and discover the...
Lesson Plan
Curated OER

Investigating Tessellations in 2 Dimensions

For Teachers 2nd - 5th
Students analyze tessellations.  In this geometry lesson, students discover which shapes can or cannot be used to create a tessellation.  Students watch a video, then create their own tessellations.
Worksheet
Curated OER

VSEPR Theory: Predicting the 3-D Shapes of Molecules

For Students 9th - 12th
In this VSEPR theory worksheet, students draw the Lewis structures for 5 molecules, they build the molecule, sketch the structure, show the bond angles and name the molecule. They also answer a question about the VSEPR theory and what...
Interactive
Curated OER

Area of 2D Shapes Multiple Choice

For Students 7th - 10th
In this area worksheet, students compute the area of circles, parallelograms and rectangles.  This one-page worksheet contains 5 multiple-choice problems.  Answers are provided in this online worksheet.
Lesson Plan
Curated OER

Perfumania

For Teachers 9th - 12th
Students identify various geometric shapes. Apply the given formulas to determine the volume of these shapes. Design their own container to conform to specifications provided. Use their knowledge of volume formulas and shapes to compute...
Lesson Plan
Curated OER

2D and 3D Shapes

For Teachers 3rd - 4th
Have your class use online activities to recognize the names and properties of 2D and 3D shapes. They will listen to their teacher describe a mystery shape and try to guess it. Additionally they will watch clips online about a 2D shape...
Worksheet
Curated OER

Shapes Picture Quiz

For Students 3rd - 5th
In this shapes picture quiz worksheet, students complete a set of 12 multiple choice questions, identifying shapes. A reference web site is given for additional activities.
Lesson Plan
Curated OER

Cutting Positive and Negative SYMMETRICAL SHAPES

For Teachers K - 5th
Young scholars cut intricate symmetrical shapes on the fold. Also, they identify positive and negative shapes and warm, cool and neutral colors. Finally, they glue shapes to create a pleasing design.
Lesson Plan
Curated OER

Dancing Polygons and Non-Polygons with Patterns

For Teachers 2nd
Second graders study movements. In this dance lesson, 2nd graders draw patterns selecting one to represent through movement with their body.
Lesson Plan
Curated OER

Small and Large Squares

For Teachers K - 1st
Young mathematicians classify squares according to attributes. They sort squares according to specific attributes. Students explore squares in repeating patterns and order squares according to size. Engaging extension activities are...
Lesson Plan
Curated OER

Perimeter All Around

For Teachers 3rd - 5th
Young scholars explore perimeter and area of regular and irregular polygons. They experiment with color squares and create different arrangements using the same number squares. Then they compare the area and perimeter measurements of each.
Lesson Plan
Curated OER

Finding Areas of Polygons and Circles

For Teachers 6th - 8th
In this math worksheet, middle schoolers find the areas for the shapes. They apply the appropriate formula for each shape that is drawn and in the word problems.
Lesson Plan
Curated OER

A Rectangular Prism and Its Net

For Teachers 6th - 10th
Identify the nets for prisms and other geometric shapes. Learners calculate the surface area of the rectangular prism then sketch the shapes of prisms and other polygons. Unfolded cereal boxes are used as a visual aid, great idea!
Lesson Plan
Curated OER

Interactivate - Geometry in Tessellations

For Teachers 8th - 11th
Students use an on-line worksheet to experiment with patterns of tessellations in regular polygons. As students observe different shapes in the "Tessellate" Activity they complete a data table and practice making predictions for...
Worksheet
Curated OER

World's Fair Quilt Pattern

For Students 7th
In this quilt patterns worksheet, 7th graders identify and complete 6 different problems that include various patterns using shapes. First, they fill the square with the polygons listed on the left as stated. Then, students use...
Worksheet
Curated OER

Perimeter of Polygons in Word Problems

For Students 2nd - 4th
Can your scholars find the perimeter of Peter's square of gold? They examine the shape and are given it's four equal side measurements in millimeters. Learners solve for the perimeter and should be reminded to include units in their...
Activity
Denton Independent School District

Build a Geome-Tree

For Teachers 5th - 7th Standards
Geometers construct a mobile or ornament using nets of three-dimensional polyhedrons. Not only do they need to compute the volume and surface area of each figure, they also earn points for creativity, neatness, and more!
Lesson Plan
Curated OER

Geometric Shapes at the OK Corral

For Teachers K
Students explore regular geometric shapes. In this shapes lesson, students investigate geometric shapes in the world around them. Students differentiate between regular and irregular shapes.
Lesson Plan
Curated OER

Perimeter and Area of 2D Shapes

For Teachers 6th - 7th
Young scholars find the perimeter and area of circles, triangles, and rectangles. In this perimeter and area activity, the teacher gives students formulas for each shape and measurement and works through examples on the board. While no...
Lesson Plan
Curated OER

Shape & Form

For Teachers 10th - 12th
Students analyze the difference between shape and form. They identify, explain and use the basic elements of design and determine that forms are three-dimensional and shapes are two-dimensional. They sketch it on their paper and then...
Worksheet
Curated OER

Name Each Shape

For Students 4th - 5th
In this math activity, students analyze 15 pictures of geometric figures and match them to the names which are provided in a word bank. Students tell how many lines of symmetry each shape has.
Lesson Plan
Curated OER

Geometry and Rubik's Cube

For Teachers 9th - 12th
High schoolers explore geometry using a Rubik's Cube. In this 2-D and 3-D shapes lesson, students use the Rubik's Cube to find the center, edge and corner pieces. High schoolers then find the dimensions of the Rubik's Cube and read the...
Worksheet
Curated OER

Math - "Solid Shapes" - Comparing 3-D Objects

For Students 3rd - 5th
In this geometry learning exercise, students learn about 3-D objects and how to describe them. They then answer 10 questions using the information they learned. The answers are on the last page.

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