# Stage 1 and 2 Toughnuts

### Sticky Data

##### Stage: 1 Challenge Level:

You'll need to work in a group on this problem. Can you use your sticky notes to show the answer to questions such as 'how many boys and girls are there in your group?'.

### Venn Diagramslive

##### Stage: 1 and 2 Challenge Level:

Use the interactivities to complete these Venn diagrams.

### Through the Windowlive

##### Stage: 2 Challenge Level:

My local DIY shop calculates the price of its windows according to the area of glass and the length of frame used. Can you work out how they arrived at these prices?

### More Transformations on a Pegboardlive

##### Stage: 2 Challenge Level:

Use the interactivity to find all the different right-angled triangles you can make by just moving one corner of the starting triangle.

### Walking the Squareslive

##### Stage: 2 Challenge Level:

Find a route from the outside to the inside of this square, stepping on as many tiles as possible.

### Building with Rodslive

##### Stage: 2 Challenge Level:

In how many ways can you stack these rods, following the rules?

### More Pebbleslive

##### Stage: 2 and 3 Challenge Level:

Have a go at this 3D extension to the Pebbles problem.

### Auditorium Stepslive

##### Stage: 2 and 3 Challenge Level:

What is the shape of wrapping paper that you would need to completely wrap this model?

### So It's Times!live

##### Stage: 2 and 3 Challenge Level:

How will you decide which way of flipping over and/or turning the grid will give you the highest total?