Denise
Jan 11, 20204 min
Geometry: 2D and 3D shapes. What is a tangram? What is symmetry? How can we find the lines of symmetry? How can we put our findings about shapes into a poster to help us remember? This is going to be a recap week on 2D and 3D shapes. Join us as we put all our learning together.
Geometry and properties of shape
https://www.whyplay.co/topics
Problem solving:
http://www.mathsphere.co.uk/resources/MathSphereFreeGraphPaper.htm
Drawing different size rectangles; Squared paper
We did some more drawing shapes using the dotted paper. This is so difficult for Tiny to do, but he did try very hard. He wanted to colour in the shapes and then he wanted me to cut them out. As I was cutting I was able to make them more like the shapes he wanted them to be so he was very pleased with himself and very happy with the result.
The grid went well, and using objects we were able to identify and fill out the table.
This will need looking at again in the future to reinforce it.
These sheets you will find on https://www.whyplay.co/topics resources pack 2.
From around the house, we are going to identify the edges.
This also went well. I was pleased that he is beginning to visualise 3D shapes
Making nets was hard and I had to give him a lot of help with this.
Before we put the nets together we were able to see more clearly how many faces of curved surfaces it had.
We just used the pre-drawn nets. I will leave drawing out his own nets for another time.
The answer I will be looking for is that both shapes have the same number of vertices, faces and edges, but the cube has only square faces and the cuboid has 2 square faces and 4 rectangular faces.
A quadrilateral is a four-sided two-dimensional shape. The following 2D shapes are all quadrilaterals: square, rectangle, rhombus, trapezium, parallelogram and kite.
We will talk about the word 'quad' meaning four and find some images of quad bikes on the internet.
Next we will be making some Venn diagrams to sort our shapes in different ways. This will add to the data handling we did in previous weeks. We will cut out a variety of different shapes and different colours to help us with this.
A traditional Chinese puzzle made of a square divided into seven pieces (one parallelogram, one square and five triangles) that can be arranged to match particular designs
We are going to cut out these shapes and make different images from them.
Nrich has some brilliant problems to solve using tangrams. Here is the website link: https://nrich.maths.org/1
Finally we are going to make a poster about all the things and the new words we have learnt about. I will cut out the shapes for him and help him with any words that he needs adding.
Next time we revisit geometry we will look at different triangles - angles - area and a lot more. But for Tiny we need to move on now. This has been enough for starters. I hope you join us in our next geometry session.