Curated OER
Facial Symmetry
Learners study facial symmetry. They explore lines of symmetry, and create illustrations with multiple lines of symmetry.
Cuemath
Cuemath: Plane Shapes
A comprehensive guide for learning all about plane shapes with definitions, properties, types, solved examples, and practice questions.
National Council of Teachers of Mathematics
The Math Forum: Defining Geometric Figures
This site provides an in-depth definition of a two-dimensional figure and a three-dimensional figure. Related terms include arcs, vertices, polygon, and many more.
Better Lesson
Better Lesson: Geometry Shape Book
Third graders develop their understanding of the importance of different 2-dimensional shapes by finding real world examples.
Better Lesson
Better Lesson: Area of Composite Shapes
Sixth graders take their knowledge about area of rectangles, squares and triangles and apply it to parallelograms, trapezoids, and composite shapes.
Quia
Ixl Learning: Rectangles
Brush up on your math skills relating to rectangles then try some practice problems to test your understanding.
E-learning for Kids
E Learning for Kids: Math: Riksjas, Toek Toek: 2 D Space: Symmetry
Students will play interactive games and explore symmetry.
NumberNut
Number Nut: Shapes, Symbols and Colors: Two Dimensional Shapes
Describes, with illustrations, the basic two-dimensional shapes students will encounter in elementary Math.