Have a look at the puzzle below and see if you can work out what numbers each of the emojis represent.
Activity 1
Have a look at the Sizing Them Up sheet.
Try to put the shapes in order from smallest to largest.
You need to be able to convince someone why you decided to put them in that order.
Colour in a row of 5 squares from white grid paper. This rectangle takes up the space of 5 centimetre squares. The maths way of explaining this is 5 square centimetres. A short cut way of writing this is 5cm2
Now make as many different shapes on grid paper as you can using 5 squares where the squares are all touching on at least one flat side. (You should be able to make 10-12 different shapes!)
Although the shapes all look different, they all take up the same amount of space - they all have an area of 5cm2 .
Using centimetre grid paper of different colours, design and make a model of a house.
Discuss how much space the different parts of the house take up. The amount of space a 2D shape takes up is called the AREA.
Fill in a description of the area of the house in the grid, measuring everything in square centimetres, using the shortcut way of writing - 5cm2.
Watch this video up to 0.58 only for an explanation of what Area is.
Here are two more short videos explaining how we work out the area of different shapes.
Using grid paper, think about all the different ways 20 square centimetres could look like. Have a look around your room and make a list of 5 things that you think have an area of about 20 square centimetres.
Go to Seesaw and complete the assigned Area activities.
If you want some fun, try drawing your name in "square letters" on a piece of grid paper, and work out the area of your name.
Solve this Two Truths and One Lie puzzle.
Work through this series of 7 activities from Khan Academy. You may need to turn your iPad into Landscape view, and then you will be able to see a list of the 7 activities down the left hand side.
If you have any spare time, then finish off any incomplete activities from earlier in the week.
Complete the Dogyard or Doggy Dilemma project.
Have a careful look at this image, and work out which shapes has equal areas of black and white? Be ready to convince/persuade a partner of your reasoning.
Finish off your Dog project from yesterday.
Have a go at solving these two challenges. There is more than one possibility for each. See how many options you can discover.
Using grid paper, design a robot family of different sizes, and record the area of their heads, bodies, arms and legs. Complete one chart for each member of your robot family. Make a neat display of your work on a piece of coloured card.
Advertisements in newspapers take up more space than the news articles. Prove whether this is true or not true.
Where possible, encourage students to complete one of the open-ended tasks above. If however, you have students who need more direction and are paralysed by the freedom, you may give them one of these tasks to complete.
Thinking:
If we wanted to measure the amount of space that your bed took up in your bedroom, would you want to count it in square centimetres? Why?
How do you think you could measure accurately how much space your bed takes up?
Now watch the video below.
Below are some suggestions about different ways of making a square metre - read through the site below and think about what you read.
There are a whole lot of different ways of trying this out:
you could use one of the examples on the website above
Perhaps you could go outside and mark out a length of 1 metre using chalk. Then try to measure another metre from the end of the line until you have made a square.
If you have some newspaper and sticky tape you could try making a square metre for yourself by sticky taping pieces of newspaper together, and then you could use your square metre to see how much space large items take up.
Then have a look at that space - that is 1 square metre or 1m2 That is quite a lot of space.
Make a list of items that you estimate would take up about 1 square metre of space. Then compare your list with that of another person in your class.
Have a go at some of these challenge cards in the carousel and work them out. Write your answers and show your working in your Maths Scrapbook.
Have a go at solving this challenge. See how many different alternatives you can find.
Complete the House planning project. Your teacher will provide you with a floor plan and furniture to place in your house. Then your teacher will also give you a recording sheet to complete about how you used the area in your house.
Your teacher will give you an assessment task to complete.