# Identifying and describing the properties of 2-D shapes, including the number of sides and line symmetry in a vertical line.

### Properties of 2D Shapes

2D shapes have:

• VERTICES = angles = corners
• SIDES
• Might also may have a SYMMETRY LINE

### Lolly sticks and velcro dots

They are so easy to make, but remember to put the dots on both sides and each end of your sticks.

I used coloured lolly sticks and velcro dots. You can also use cut up straws and play-doug balls.

### Finding the Symmetry Line

You can draw a line of symmetry only when one half of the shape is a mirror image of the other. In other words when you fold the shape along the symmetry line the two halves should be exactly the same. Your child will be expected to find a line of symmetry ONLY in vertical line. It means to cut the shape in half (top to bottom) in order to find a line of symmetry.

VERTICAL LINE- the line that cuts the shape and goes straight from the top down.

Cut few shapes out of colour paper. Next explain to your child what a symmetry line is and experiment together to find it. Maybe you will find more than one?

### The Challenge: Build and Name the Polygon

You can use any materials you have at home to build it.

### Geomag Fun

Geomag is great for that. You can use metal balls for vertices and magnetic sticks for sides. Look at the shape first and count how many vertices and sides will you need to build them. Use desired mathematical language.

Click on the picture to view it on amazon.

### Magnetic Shapes

These are really lovely to explore the properties of the shapes as they are ready to use. You can also join them to build 3D shapes.

Click on the picture to view it on amazon.

### BrainBox Maths

BrainBox Maths is unbeatable to learn math’s facts and practice memory - I also use the abacus (to count points), 30 seconds timer - instead of 10seconds that came with the box. I found out that 10s. is not enough YET, for my 6 years old to memorise a page.

Click on the picture to view it on amazon.

### Tap Tap

Do you still have classic Tap Tap? Well… use it with a different purpose. Talk about the shapes in your picture and their properties. Which shape is good for what?