Curated OER
That's So Square
Students familiarize themselves with the three most common geometric shapes: circles, triangles and parallelograms. They sketch, sort, and name the shapes.
Curated OER
Geometric Collages
Fourth graders investigate the concept of geometric patterning. They create their own patterns with a few basic requirements. The patterns must illustrate the concepts of flipping, 90 and 180 degree rotations. The collages also consist...
Mathematics Vision Project
Geometric Figures
Logical thinking is at the forefront of this jam-packed lesson, with young mathematicians not only investigating geometric concepts but also how they "know what they know". Through each activity and worksheet, learners wrestle with...
Curated OER
Valentine's Day Fun
Students choose various shapes and colors to create a Valentine's 'person'. In this Valentine's Day lesson, students design collages, make prints and mosaic pictures. More advanced students create a Tessellation using geometric shapes.
Exploratorium
Geometry Scavenger Hunt
One of the nice things about geometry is that it's all around us. The lesson presented here has elementary schoolers go out to the playground to identify and name a variety of geometric shapes. They perform a "geometric scavenger hunt"...
Curated OER
Pop-it...Stop-it
Learners observe how certain geometric shapes can be used to make some structures rigid and others flexible. The activity involves construction of a 30-60 right triangle, folding while following directions, and identifying polygons.
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.
Curated OER
Polyhedra: Faces, Edges, and Vertices (3-D Marshmallow Models)
Third graders explore the attributes of 3-dimensional shapes. In this shapes lesson, 3rd graders examine faces, edges, and vertices of 3-dimensional shapes as they construct shapes using marshmallows and toothpicks.
Curated OER
3-D Paper Sculpture
Young scholars explore characteristics of geometric shapes. They participate in a paper folding activity to create various geometric shapes. Students design a mobile of the shapes they have created.
Curated OER
Fractions and Paper Folding
High schoolers explore the concept of origami. In this origami lesson, students construct picture frames out of paper. High schoolers find the midpoint of the paper and determine the fractional area of the paper as it is folded.
Curated OER
Box Folding: Predict, Analyze and Measure
Students predict the shape of a geometric figure in 3D. In this geometry lesson, students construct 3D shapes to perfect their knowledge of measuring and predicting. This assignment is also available as an online interactive lesson.
Curated OER
ExplorA-Pond:2nd Grade Shapes & Fractions
Second graders, in groups, using a map, drawing or aerial view of a pond, represent the shape of the pond using simple geometric shapes or fractions of those shapes.
Curated OER
Area of Tangram Pieces
Mathematicians calculate the area of a tangram piece without using formulas. They use a geometry journal to record activities during this lesson. They make a set of tangrams and use them to compute area. They use what they discover to...
Curated OER
Accordion Book
Learners make an accordion book to show information that is associated with a particular learning event. In this accordion book lesson, students follow paper-folding directions to make the book. They fill the book with key facts and...
Illustrative Mathematics
Toilet Roll
Potty humor is always a big hit with the school-age crowd, and potty algebra takes this topic to a whole new level. Here the class develops a model that connects the dimensions (radii, paper thickness, and length of paper) of a common...
Curated OER
Tearing a Piece of Paper in Half
In this secondary mathematics activity, students investigate exponential growth as they predict the height of a stack of paper formed by tearing one sheet of paper in half over and over again for thirty tears. The one page activity...
Curated OER
Making Tangram Pieces by Folding Paper
Third graders follow directions to make a set of tangram pieces. After reading a story, they compare and contrast the differences between two-dimensional shapes. To end the lesson, they use the tangram pieces to create their own...
Curated OER
Punch Patterns
Fifth graders duplicate patterns, guess pattern results and identify the symmetries created. They are given an instructional handout, 5th graders replicate the patterns demonstrated by folding the paper and punching the appropriate...
Curated OER
Money Is Irrational
In this geometry lesson, 10th graders fold a dollar bill to make a tetrahedron. They analyze geometric shapes and apply it hands on.
Curated OER
Symmetry that is Basic and Beautiful
Young scholars explore lines of symmetry. In this symmetry lesson, students divide and combine shapes along basic lines of symmetry. Young scholars explore symmetry in real life objects.
Curated OER
Symmetrical Journals
Students identify symmetrical shapes around their classroom and make symmetry journals. In this symmetry lesson plan, students make drawings of symmetrical shapes inside their journals.
Curated OER
Exploring Lines of Symmetry
Students investigate the concept of symmetry. They use cut out shapes that are folded in order to practice identifying the lines of symmetry. The lesson is observed by the teacher working with students for the purpose of scaffolding and...
Curated OER
Attributes & Nets of a Cube
Third graders engage in a activity that focuses on the attributes and forming of a cube. They construct a cube using different combinations while comparing a square with only two-dimensions. Students fold paper while following the...
Curated OER
Math Challenges
Students engage their critical thinking skills to solve challenging math problems. In these problem solving lessons, student work with tessellations, weights/measurement, reasoning, surface area, geometric shapes, and algebraic procedures.