How To Make A Joint!

First you have to draw what your going to do and how you going to do it so for example i'm gonna make a money box for saving. Then you got to have timber and measure it but the timber i'm using is 320 - mm  and you need some other wood then you can ask and make sure that you have a adult beside you for help with sharp tools. How do make a joint so you need two pieces of wood and you cut a little thing in the middle and you insert the other pieces of wood and that's how you make a joint.