DK Find Out! Geometry
DK

Geometry is all about lines, angles, shapes, and space.

OLogy: Thinking in Three Dimensions
OLogy (American Museum of Natural History)

Explore the third dimension by building an origami waterbomb!

youcubed: Building Shapes (6-8)
youcubed (Stanford University)

Students work together using a rope to create 3-D shapes.

youcubed: Building Shapes (3-5)
youcubed (Stanford University)

Students work together using a rope to create 3-D shapes.

youcubed: Building Shapes (1-2)
youcubed (Stanford University)

Students work together using a rope to create 2-D and 3-D shapes.

youcubed: Building Shapes (9-12)
youcubed (Stanford University)

Students work together using a rope to create 3-D shapes.

youcubed: Reduce, Reuse, Geometry (3-12)
youcubed (Stanford University)

Intersecting a 3D shape and a plane might seem intimidating, but a few bottles, a box cutter, and some creativity can give us some insight into what it can look like.

Real World Math: Concept Lessons - Polyhedrons w. SketchUp
Real World Math

This page will suggest several ways it can be used to study polyhedrons. 

NRICH: Presents
NRICH (University of Cambridge)

Comparing the wrapped presents in this activity will give children the chance to explore and discuss weight, including the idea that large objects aren’t necessarily the heaviest.

NRICH: Tubes and Tunnels
NRICH (University of Cambridge)

When investigating these tubes, children will have the opportunity to practise using everyday language to talk about length, size and position.

NRICH: Shapes in the Bag
NRICH (University of Cambridge)

In this task, children put their hands into a bag and describe what shape they think they can feel and why.

NRICH: Building Towers
NRICH (University of Cambridge)

In this task, children will explore 3D shapes when selecting which shapes to use in their tower.