2D shapes

This week in maths we have been learning our 2 dimensional shapes. We have learnt they are flat shapes. We know their names

  • circle
  • triangle
  • square
  • rectangle
  • pentagon
  • hexagon
  • octagon

We also know that these shapes have magic numbers. A circle has 1 because it has 1 side all the way around it. A triangle has 3 sides and 3 corners, so it’s magic number is 3. Squares and rectangles have 4 corners and sides, there magic number to remember is 4. We know a rectangle has 2 long and 2 short sides, that’s how we don’t get it mixed up with a square. Pentagons look like a house with a roof and have 5 sides and corners. Hexagons have an x in the word just like the letter 6- and a hexagon has six sides and corners. An octagons has eight sides and corners and we remember it like an Octopus with 8 arms.

We have been on shape hunts around school looking for 2d shapes. We have made shape monsters which will be on display on our working wall very soon.



2D Shapes

Before half term Class Jonah briefly learnt about 2D shapes.

We learnt that:

  • 2D shapes were flat.
  • That they had sides.
  • Some are called circles, squares, triangles, pentagons, hexagons, heptagons and octagons.

We will be going back to look at shapes again in the future but we just can’t stop watching our favourite shape songs. So Miss Irwin thought she would share them with you so we can sing them at home too.


If we want to be really clever and show how on fire our brains are, we can tell you the difference between 2D shapes and 3D shapes.