Geometry: Just what do they need to cover in Year 2? Well, they need to recognise 2D and 3D shapes. they need to be able to count faces, edges and vertices on shapes. And of course there is lines of symmetry.
The trick will be with Tiny is to find a way to have the name of the different shapes stick. He is confident with the more common shapes, but I want to see how far we can extend that.
Lines of symmetry he has always had problems with so that will need some careful work with lots of practical.
Last weeks review. Statistics
Tiny was keen to do tally charts and very excited. He told me he knew all about them because he had done them at the 'other' school (that's what he calls it). He wanted to do a tally chart about 'Favourite Colour?'. I have two dice that have numbers 1,2,3,4,5,10 on them so we used these to generate numbers for our first tally chart.
It soon became clear that, although Tiny understood the pattern a tally chart should make, he did not really understand how to make a group of five.
He counted five sticks and then put the line across. I showed him on my hand and explained about shutting the gate. We counted four fingers on my hand and then he moved my thumb to shut the gate. We then talked about that being five and that our tally chart shows four fingers with a thumb across them when five is reached.
Normally he gets really upset when he thinks he knows something and he needs help with it, but he was keen to do more tally charts today.
He was able to answer the questions for the pictograms very well when it was one to one correspondence. He found it more difficult when the numbers became larger and an image could represent 2, 5, or even 10.
We went over a few, but I did not want to dwell on this too much this week. We can always revisit this bit by bit.
Now for Year 3 work:
We went back to tally charts and introduced a new word.
He did manage to draw the charts in his book with a lot of help. He needs a lot of practice with using a ruler because of how difficult he find it to use his right hand.
He enjoyed bar charts and loved making a bar chart out of blocks.
We will have to reinforce the horizontal and vertical axis a bit more.
Lots of graphs and charts this week - but all skills we can use for other maths work and science.
This Week Geometry and properties of shape
Just in case you wanted to know - Here are the NC objectives for Year 2:
Identify and describe the properties of 2-D shapes, including the number of sides and line symmetry in a vertical line; Identify and describe the properties of 3-D shapes, including the number of edges, vertices and faces; Identify 2-D shapes on the surface of 3-D shapes, (for example, a circle on a cylinder and a triangle on a pyramid).
Compare and sort common 2-D and 3-D shapes and everyday objects.
There is a sheet for 2-D and 3-D shapes on resources page.. https://www.whyplay.co/topics
Here is a site for you to print out graph and dotty paper to use for drawing shapes http://www.mathsphere.co.uk/resources/MathSphereFreeGraphPaper.htm
We are going to go out for a walk with a notepad and pencil - or maybe just my phone and use the camera - TWe are going to talk about what shapes we can see.
Is there one shape you can see more than any other?
Can you see any pentagons?
Can you see any octagons?
Can you see any hexagons?
Can you see and 3-D shapes?
Next were going to talk about odd ones out and explain why we think that. You'll find our work on page 3 of the resources pack.
Next we need to make sure that we can count the sides of a shape accurately. I want to encourage Tiny to mark each side as he counts it.
We are going to draw together some shapes in his book.
This will mean more practise with the ruler and help from me.
At first we will stick to triangles - squares - rectangles and circles, because they are easier to draw.
Then we will start drawing some irregular 2D shapes.
This is more about building up confidence in counting the sides and in drawing shapes.
Using the shapes on page 4 of the resources pack we will cut them out and stick them in our book based upon the number of sides that they have. https://www.whyplay.co/topics
Now it is time to introduce the word vertex. I know Tiny has problems with this word because of work we have done in the past. Sometimes, repetition is the only way Tiny can learn new concepts and new words.
We are going to use the shapes on page 4 again, but this time we are going to be marking the vertices. I will explain that a vertex is where two lines meet. https://www.whyplay.co/topics
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
Dotty Paper to help draw shapes:
http://www.mathsphere.co.uk/resources/MathSphereFreeGraphPaper.htm
Click on the link to take you to mathsphere for some dotty paper to print out.
We don't have a geo-board so we are going to start to draw some 2D shapes using dotty paper.
We are going to be talking about the shapes as we draw them. I'm going to demonstrate how to hold the ruler, and how to turn the paper so that we can draw the shape more easily.
Drawing different size rectangles; Squared paper
Next we are going to draw different size rectangles and talk about what is the same and what is different about them.
we are going to talk about sides and vertices and start to look at the area they take up.