Painting and DIY is all about a mixture of maths and design. As you will have seen if you’ve played our interactive painting game, maths is important for working out widths, heights and areas. Design is also important: even if you get all of your measurements right, choosing the wrong colour or arranging the furniture wrongly can ruin the way a room looks.

So whether you’re decorating a whole room or simply rearranging your furniture, you need to combine good maths with careful planning and an eye for design.

In this section of BrainBox, we’re going to give you some simple advice on how to change your room from a tip into a palace.

Our Room Planner will help you to make the most of the space you’ve got, no matter how big or small your room is.

Colour Lab will help you decide which colours you like by letting you experiment with different combinations.