Curated OER
Graph Groups
In this mathematics instructional activity, students solve a number of problems by counting each shape and graphing the amount to the right in height. Then they circle the shape that appears the most often on the sheet.
Curated OER
Which One Does Not Belong?
In this mathematics worksheet, students circle the shape in each group that is different. there are six different groups to identify on the sheet.
Curated OER
Exercise 23--the Regular Pentagon on a Given Side
Middle schoolers examine and study how to recognize the characteristics of a regular pentagon and demonstrate how to construct one. They become aware of associating a regular pentagon to its term of a double map and practice the concept...
Mathigon
Mathigon: Geometry: Polygons and Polyhedra: Polygons
This lesson focuses on polygons; a polygon is a closed, flat shape that has only straight sides. Polygons can have any number of sides and angles, but the sides cannot be curved.
Cuemath
Cuemath: Equilateral
Learn all about the basic properties of equilateral. This lesson targets the meaning of equilateral, shows how to construct equilateral shapes, explores some of the equilateral shapes and properties, and how to apply them while solving...
Other
Ic Teachers: Shapes: Polygons
The properties of the four different types of polygons--pentagons, hexagons, heptagons, and octagons--are discussed here. Some practice questions are also given to test your knowledge.
University of California
Geometry Junkyard: Dissection Tiling
A great and very informative article about dissection tiling or tessellation.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Polyhedrons
This in-depth paper examines the idea of convexity. Euclid's Elements, the first geometry textbook, assumed convexity without mentioning the term.
PBS
Pbs Teachers: Architecture: Community Geometry
Identify architectural structures and objects in the community that represent different figures and types of geometry and mathematics.
ClassFlow
Class Flow: Segments and Polygons
[Free Registration/Login Required] This flipchart reviews segments, parallel and perpendicular lines and then introduces polygons including quadrilaterals. It has many real world examples of shapes and includes Activote assessment.
ClassFlow
Class Flow: Football Path (Algebra)
[Free Registration/Login Required] Fun game involving designing a football path around the high school using pentagons and hexagons.
Homeschool Math
Homeschool Math: Basic Shapes
This review activity about basic shapes (polygons)contains varied hands-on exercises and tilings about triangles, quadrilaterals, pentagons, and hexagons.