How many rectangles can you make with perimeter 12 units?
What do you know about rectangles? What is the smallest rectangle that you can […]
Imagine dipping the large cube into a pot of yellow paint so the whole outer surface is covered. What is its surface area?
Now imagine breaking the […]
.GROUP ACTIVITY – groups of 4
Cut out 16 cards and mix them up.
Give each member of the group 4 cards. They must exchange cards one-to-one aiming for each member to […]
Can you fit them together to make an enlargement of the shape? What is its area?
Can you fit trisquares together to make enlargements of scale factors 3, 4 and 5? What are their areas?
Is it […]
Can you find a way to fold a sheet of paper so that you can cut out the tangram pieces accurately […]
Squares 1, 2 and 3 all have edges of length 1 unit. Some edges are divided into lengths of ½ and ¼.
The squares are split up into smaller shapes.
What can you say about those shapes and their properties?
Which shapes are similar?
The squares have area 1 square unit. What are the […]
Which rectangles are exactly the same (congruent)?
Which rectangles are similar?
This problem is adapted from the NRICH task with the […]
Suppose another fence is built exactly one metre longer so the path between the two fences is the same width along the edges of the field. How wide would this path be?
Could a farmer drive […]
Suppose another fence is built exactly one metre longer so the path between the two fences is the same width all the way round including at the corners of the field.
How wide would this path be?
Would a mouse be able to run along it? […]