My children love art activities... I love them too, and also love to find ways to do them whilst making as minimal mess as possible!
It's simple... lay a mat out on the floor, get chalks and paper out, put on some good music and off you go! When you've all finished pack away the chalks, lift up the mat and house is back to clean, and ready to move onto something else!
We explored what different effects we could make by folding the paper, laying the chalk flat and rubbing across the folded part. My 5 year old found out she could make pictures of mountains, flowers, sun and sky... my 3 year old just wanted to colour patterns instead!
Enjoy your experiences with chalk times!