We can do Maths 8

Geometry: 2D and 3D shapes. What are their properties? How can you work out how many faces a 3D shape has? What is a net? How can you make a net? What are the different names of the shapes? These are just some of the questions I will be asking Tiny this week.




Last weeks review.

Geometry and properties of shape


He did well with naming some of the regular 2D shapes and was able to name the 3D shapes.

He loved going out and about looking for shapes.

We found a lot of rectangles and squares and we talked about why they would be good shapes for using in buildings.

What is the odd one out?

He did very well with this and I was very pleased.


Drawing shapes in his book proved to be very difficult. He has a great deal of trouble using a ruler. We worked together on this one.

the ideas was, not so much drawing beautiful shapes, but counting the sides of the shapes.


We started to talk about regular and irregular shapes. this he found a bit confusing so we will take it slowly over the next two weeks and reinforce the terms.

We used the shapes in the resources pack (I printed out 3 copies) and stuck them in his book in the order of how many sides they had. He loved this and did very well.

He is coming to terms with the words vertex and vertices and was able to mark them on his shapes.

https://www.whyplay.co/topics

How many vertices can you find?

Problem solving:

When I think Tiny is ready we will have some questions and answers like this:


My shape has 4 vertices. What shape could it be?

My shape has no vertices. what shape could it be?

True or False - All squares have 5 vertices.

What 2D shape has twice as may vertices as a square?

What 2D shape has half the amount of vertices as a hexagon?


I'm going to ask Tiny to make himself a grid to help him answer the next question.

Which shape has more vertices?

2 squares

4 triangles

2 pentagons


Were going to need more questions like this. He was able to answer them with help, but he does need more practise.


Dotty Paper to help draw shapes:

http://www.mathsphere.co.uk/resources/MathSphereFreeGraphPaper.htm

Needs more work


Drawing different size rectangles; Squared paper

I was pleased with this. I drew out the rectangles and he helped identify the area and the vertices/lines etc.


Symmetry

We didn't get to do work on symmetry last week so will have a look at it this week.

The worksheets for this I will get from Twinkl. If you do not have twinkl then if you type in symmetry worksheets into google you will find lots of worksheets you can download for free.

We will also be looking at the Power Points that twinkl has on symmetry as that sometimes helps with a deeper understanding for Tiny.



This week


We will start the week by looking at 3D shapes.

I will get Tiny to use his knowledge of 2D shapes to identify the shapes of faces on 3D shapes. It is much harder to count the faces on a 3D shape and he will need to be able to visualise it from the drawing on paper.

Cones are described as having 1 face and 1 curved surface.

Cylinders have 2 faces and 1 curved surface.

Spheres have 1 curved surface.

We will talk about:

What is the 'face' of a shape?

What is the difference between a face and a curved surface?

What 2D shapes can you see on different 3D shapes?

How can you makes sure you don't count the faces more than once?




these sheets you will find on https://www.whyplay.co/topics resources pack 2.


I am going to ask Tiny some questions and we are going to work through the answers together. It is important to talk about our maths, and to try to explain what we are thinking.

Reasoning and Problem Solving

I am a 3D shape with 4 rectangular faces and 2 square faces. What am I?

I am a 3D shape with 1 curved surface and one circular face. What am I?

I am a 3D shape with 6 square faces. What am I?

I am a 3D shape with 1 curved surface and 2 circular faces. What am I?


These sort of questions develop a deeper understanding and help with visualisation.


Next we are going to talk about what edges means. Using boxes or tins from around the house, we are going to identify the edges.


Now we are going to complete this table.


Don't forget you will find copies of these charts in the topics page.

Next we are going to have some fun with nets.

first we are going to watch this fun YouTube clip


Then we are going to put together some nets ourselves.

Again I am going to be using resources from Twinkl for this. If you don't have Twinkl, there are plenty of free nets you can find if you just type in nets for 3D shapes into a search engine.


Once he is confident with the pre-drawn nets - I want him to draw out his own net for a cube on squared paper.

Then I want him to see if he can find another ways of making a net for a cube.


If we have time towards the end of the week we will do some work on symmetry that we should have done last week.

But you know what the weeks are like. They just run away...



Next Week:

We will continue to examine 3D shapes and their properties and recap on all the new terms we have used like Faces, Edges, Vertices, Nets etc.

We will also be arranging our shapes in a Venn diagram to reinforce our data work.

I hope you will be able to join us.

Please let me know if there is anything you want adding to this unit.