There is something magical about sponge painting: toddlers love it, preschoolers love it, older kids love it and when they are all done you would probably find yourself grabbing a sponge and stamping the paper with it. I did!
The effects kids can create range from simple stamping, to a lighter, more watercolor-like effect, to doing circles on paper to stamping in a brick-like pattern. Do experiment and see what you and your kids like most.
Sponge painting is better done on the floor ( think of the mess.) Give the kids a plate of paints each and a cup of water ( or just a wet sponge if they are little.) The kids can experiment painting with a wet sponge and with the dry one. Encourage them to try and rotate the sponge on paper and to try and stamp lightly and them to stamp hard. Encourage them to mix colors. And then, try it yourself- it’s fun!
My kids have been sponge-painting starting at 11 months old. The painting on top is called Winter and it was done by my 4 year old boy. The one on the bottom doesn’t have a name and it was done by my 2 year old boy.