K-5 Math Teaching Resources
Pattern Blocks
Who needs to buy pattern blocks when you have this printable pattern block template? Including triangles, squares, trapezoids, rhombuses, and hexagons, this resource offers endless possibilities for teaching children about geometric shapes.
Curated OER
Mandalas, Polygons and Symmetry
Students create a geometric pattern using mandalas, polygons and symmetry. In this geometry lesson, students analyze the mathematics involved in making the mandalas, including the shapes and symmetry. Students create their own mandalas...
Curated OER
100 Stamps for 100 Days
Students recognize similarities and generalize patterns. In this math and technology lesson plan, students develop an understanding of number patterning by grouping stamps and counting by 10s.
Exploratorium
Exploring a Complex Space-Filling Shape
Middle schoolers build a three-dimensional 12-pointed star as a geometric exercise. The shape is quite-difficult to construct. Luckily there is an excellent template that learners cut out, then use to make their pyramid. The second part...
Curated OER
ExplorA-Pond:3rd Grade Shapes & Fractions
Students, 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. They identify the numerator and denominator in each fraction created.
Curated OER
100 Stamps for 100 Days
Second graders count by 2's to get to 100. In this counting lesson plan, 2nd graders use the program Kid Pix to create stamps two at a time until they get to 100.
Exploratorium
The Four-Square Quilt
Youngsters recognize that triangles can be combined together to make various shapes. The learning activity provides a series of seven steps that engage children in applying transformations to triangles. Pupils use a quilt template and...
Curated OER
Polygon Sum Conjecture
Students calculate the sum of the angles of a polygon. In this geometry lesson, students use the interior angle formula of polygon based on the number of sides of the polygon. They identify the missing angle using algebra.