![Xavi's T-shirt](/sites/default/files/styles/medium/public/thumbnails/content-id-15208-icon.png?itok=p09ReWyq)
Exploring and noticing
![Xavi's T-shirt](/sites/default/files/styles/medium/public/thumbnails/content-id-15208-icon.png?itok=p09ReWyq)
![Rhombus It](/sites/default/files/styles/medium/public/thumbnails/content-id-15165-icon.png?itok=1iXhLMGD)
problem
Rhombus It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.
![Parallelogram It](/sites/default/files/styles/medium/public/thumbnails/content-id-15164-icon.png?itok=k-5tuPhA)
problem
Parallelogram It
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.
![Counting Stick Conjectures](/sites/default/files/styles/medium/public/thumbnails/content-id-13973-icon.jpg?itok=w4CZcrWu)
problem
Counting Stick Conjectures
How many rectangles can you see? Are they all the same size? Can you predict how many rectangles there will be in counting sticks of different lengths?
![Three neighbours](/sites/default/files/styles/medium/public/thumbnails/content-id-8108-icon.gif?itok=eZEBmBsF)
![Arranging Additions and Sorting Subtractions](/sites/default/files/styles/medium/public/thumbnails/content-id-14726-icon.png?itok=JpyCE6wp)
problem
Arranging Additions and Sorting Subtractions
Order these four calculations from easiest to hardest. How did you decide?
![Subtraction Slip](/sites/default/files/styles/medium/public/thumbnails/content-id-14740-icon.jpg?itok=M2VCKxJ5)
problem
Subtraction Slip
Can you spot the mistake in this video? How would you work out the answer to this calculation?
![Compare the Calculations](/sites/default/files/styles/medium/public/thumbnails/content-id-14739-icon.png?itok=YPXkXLlg)
problem
Compare the Calculations
Can you put these four calculations into order of difficulty? How did you decide?
![Countdown fractions](/sites/default/files/styles/medium/public/thumbnails/content-id-6564-icon.gif?itok=gMgDY9tV)
problem
Countdown fractions
Here is a chance to play a fractions version of the classic Countdown Game.
![Charitable Pennies](/sites/default/files/styles/medium/public/thumbnails/content-id-14511-icon.jpg?itok=_VlqKCMH)
problem
Charitable Pennies
Investigate the different ways that fifteen schools could have given money in a charity fundraiser.