Learning About Geometry

In fourth grade, our first math unit focuses on geometry. This kind of thinking is very important for students. We'll focus on:

-How are different shapes similar and different?
-How can we identify different shapes?
-How can we use inductive reasoning to solve polygon riddles?
-How do different shapes fit together?
-What are the properties of 3D shapes?

Being able to visualize different shapes, both flat and three-dimensional, has proven to be an important skill for future science and math success. It's exciting to start the school year with such a concrete topic that will help students to build these vital abilities.

Here are some fun resources that you can use to learn more about geometry.

3D Shapes Interactive: This site explores properties of 3D shapes. Look at the "3D Shapes" tab to see an animated sequence showing the vertices and edges of solid shapes.

Quadrilaterals: Learn about the properties of 4-sided polygons. Then, drag the dots to explore how the shapes can change.

Solid Geometry: More with 3D shapes.

Star Gazing: A Cyberchase game that looks at measuring angles.

2D to 3D Morphing: A Cyberchase activity to make 3D shapes out of flat ones. (If you make these, bring them in to share!)

Geometric Shape Flashcards: Use these to practice vocabulary for the unit. (Note: Some of the ideas on the flashcards will not be covered in our unit. Don't worry!)

Hidden Picture: Practice math terms by finding a hidden picture.

Everyday Mathematics Vocabulary: This site, from another school district, has vocabulary sheets for every unit. Download "Unit 1" to see a list of definitions with pictures.

Enjoy learning about geometry!