2D representations of 3D shapes

  • Geometry and Gravity 1
    article

    Geometry and gravity 1

    This article (the first of two) contains ideas for investigations. Space-time, the curvature of space and topology are introduced with some fascinating problems to explore.
  • Thinking 3D
    article

    Thinking 3D

    How can we as teachers begin to introduce 3D ideas to young children? Where do they start? How can we lay the foundations for a later enthusiasm for working in three dimensions?

  • The development of spatial and geometric thinking: 5 to 18
    article

    The development of spatial and geometric thinking: 5 to 18

    This is the first article in a series which aim to provide some insight into the way spatial thinking develops in children, and draw on a range of reported research. The focus of this article is the work of Piaget and Inhelder.
  • Euler's Formula
    article

    Euler's formula

    Some simple ideas about graph theory with a discussion of a proof of Euler's formula relating the numbers of vertces, edges and faces of a graph.
  • Pupils' recording or pupils recording
    article

    Pupils' recording or pupils recording

    This article, written for teachers, looks at the different kinds of recordings encountered in Primary Mathematics lessons and the importance of not jumping to conclusions!
  • Shaping the universe I - planet Earth
    article

    Shaping the universe I - planet Earth

    This article explores ths history of theories about the shape of our planet. It is the first in a series of articles looking at the significance of geometric shapes in the history of astronomy.

  • 3D drawing
    article

    3D drawing

    The design technology curriculum requires students to be able to represent 3-dimensional objects on paper. This article introduces some of the mathematical ideas which underlie such methods.

  • Christmas Boxes
    problem

    Christmas boxes

    Age
    11 to 14
    Challenge level
    filled star empty star empty star
    Find all the ways to cut out a 'net' of six squares that can be folded into a cube.