Its half term holidays

At last!!
last week on the Thursday before I broke up for a very long awaited holiday I did a craft day with a group of the college students. I was teaching them how to make memory (exploding) boxes, which as you can imagine is not easy working in inches with a group of teenagers who think inches are something that cave men used...lol. Anyway I decided I would have to change the measurements to cm. So after some experiments I did it and it is so much easier then working in inches. I can now make boxes in a variety of sizes.
Bellow is a box I made from A4 card to use as an example for the student.

Here are the instructions and measurements for a box using A4 and 12x12 card stock. From these measurements you can see just how easy it is to scale it down more.

Big Box

You will need 4 sheets of 12inch x 12inch card stock 3 sheets for the box and one for the lid. First sheet measures 30cm x 30cm then divide into 3 x 10cms vertically and horizontally.
Then cut the 4 corner squares away. Second sheet measures 28.5 x 28.5 then divide into 3 x 9.5cms vertically and horizontally. Then cut the 4 corner squares away. Third sheet measures 27 x27cms then divide into 3 x 9 cms vertically and horizontally. Then cut the 4 corner squares away. Fourth sheet is the lid measure 17.5 x17.5 square.
Then score all 4 sides in 3.5cm in. TURN YOUR CARD OVER and score from the tip of each corner, diagonally, until you meet your scored “corner” lines. You can decorate as you wish.

Smaller Box (INSTRUCTIONS SAME AS ABOVE)

First sheet measures 21cm x 21cm then divide into 3 x 7cms.
Second sheet measures 19.5 x 19.5 then divide into 3 x 6.5cms. Third sheet measures 18 x 18cms then divide into 3 x 6 cms. Fourth sheet is the lid measure 15 x 15 square. Then score all 4 sides 3.5cm in.