A batik is a dyed fabric and a really fun way to incorporate designs using inks and liquid wax. I usually begin with some observational drawing of insects (this was my theme but you can do anything onto batiks!) Once this was done i get the children to trace through their insect drawings onto the fabric by placing them under the fabric. A2 is a pretty good size - you want the batiks to be pretty big. Next they add a liquid wax to act as a barrier so their inks do not run when applied. There are some good liquid waxes out there but also some that don't work at all - best to do some research before you buy. Give the wax a day or two to dry and then brush on the liquid inks. Hopefully the wax will stop them from merging/running and you are left with an outline of your animal and some lovely washed ink colours.