Curated OER
Mirror, Mirror
Geometry students use hinged mirrors to discover that the regular polygons are composed of triangles tessellating around a center point. They sketch triangles on paper models of the regular polygons having 3 to 10 sides and compute the...
Curated OER
Does Your Field Measure Up
Young scholars measure angles using a plane table kit. In this geometry lesson, students use trigonometric identities to find the values of the length of a football field.
Curated OER
Transformations - Rotations in the Coordinate Plane
In this geometry activity, math scholars brainstorm examples of rotations. Using the SMARTboard, students observe a rotation. They create their own rotation using graph paper. Finally, pupils complete a worksheet and graph rotations.
Willow Tree
Area of Common Geometric Figures
Scholars can use area formulas, but can they apply what they know about area? The lesson challenges learners to think logically while practicing finding area of shapes such as rectangles, circles, parallelograms, triangles, and other...
Illustrative Mathematics
Why Does SSS Work?
While it may seem incredibly obvious to the geometry student that congruent sides make congruent triangles, the proving of this by definition actually takes a bit of work. This exercise steps the class through this kind of proof by...
Curated OER
Word Problem Practice Workbook
Need worksheets that challenge your middle schoolers to apply their understanding of math? Problem solved! From integers, fractions, and percents, to algebra, geometry, and probability, over 100 pages of word problem worksheets...
Radford University
Fun with Solids
Geometry is all around us—if we're only willing to look. The final three activities of the Fun with Solids unit continue work on surface area and volume. For lesson three, scholars investigate the formulas for spheres and solve a problem...
Radford University
Green Acres is the Place to Be!
Nurture a love of math and farming at the same time. Pupils apply geometry concepts, such as surface area and volume of three-dimensional shapes and similarity ratios, to farming contexts. They consider the dimensions of bales of hay,...
Curated OER
Countdown Challenge: Platonic Solids - Part I
Use a Platonic solids worksheet to record the number of faces, edges, and vertices of five polyhedra whose faces, edges, and vertices are all identical. For each figure, learners write a proof of Euler's formula (F+V=E+2). They create a...
Curated OER
World's Fair Quilt Pattern
In this quilt patterns activity, 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 horizontal...
Curated OER
Congruent Figures
In this problem solving worksheet, 4th graders study 4 lines of shapes. Students determine which multiple choice shape on the right is congruent to the one on the left of the straight line.
Curated OER
Fractal and the Dragon Curve
Students explore Fractal designs. In this geometry activity, students observe the different polygons created in nature and relate it to math. They define polygons on planes and rotate polygons about a point.
Curated OER
Reflections (4)
In this reflections worksheet, students reflect three sided and four sided shapes across a graph. Students complete 6 reflection problems.
Curated OER
Geometry Practice: Area of Polygons #8
In this area of polygons worksheet, students solve 7 short answer and multiple choice questions about area. Students find the area of triangles given base and height, or points in the coordinate plane.
Curated OER
Edible Geometry
Middle schoolers examine a chart that lists the main characteristics of polygons and 3 dimensional figures. They make examples of the polygons and figures using pretzels and gum drops showing how the gum drops are vertices and the...
Curated OER
Geometry
In this geometry/math worksheet, students name eight shapes by circling the name that best describes it. Students select the correct answer from 4 choices.
Curated OER
Geometry
In this geometry worksheet, students identify the different shapes created by nets. They also identify the intersection of lines and planes. There are 5 questions with an answer key.
Curated OER
Geometry: Congruent Figures
In this congruent learning exercise, students identify congruent figures in a given set of shapes. A reference website for additional resources is given.
Curated OER
Truncated Dodecahedron
In this math worksheet, students build a truncated dodecahedron. This is a solid shape with 12 regular decagonal faces and 20 equilateral triangular faces. Students build this shape to assist in developing their cognitive and geometric...
Curated OER
Dodecahedron
In this dodecahedron instructional activity, students build a model of a dodecahedron. The pattern for this shape is made up of twelve pentagons. This is a instructional activity generator, and the teacher can choose if a sample of the...
Curated OER
Shape Lessons That Connect
Shape lessons provide a way for students to learn about art, science, and math.
Curated OER
Truncated Icosidodecahedron
In this math learning exercise, students use a paper model to build a truncated icosidodecahedron. The learning exercise includes a model that is to be cut out and put together by the student. There is an option to include a small...
Curated OER
Truncated Icosahedron
In this math worksheet, students build a model of a truncated icosahedron. This shape has 12 regular pentagonal faces and 20 regular hexagonal faces. An option to include a preview of the finished model is included for the teacher.
Curated OER
Polygons in Symmetry: Animal Inventions
Fourth graders use polygons to create animal figures with symmetry. In this polygons and symmetry lesson, 4th graders create a symmetrical animal collage by cutting and gluing geometric shapes and figures from math activities.