In a small bowl, mix together 1/2 cup salt, 1/2 cup hot water, and a few drops of food coloring. Stir for a few minutes, then gradually add 1 cup(approximately) of flour. Continue stirring until the dough forms a nonsticky ball. Place the playdough on a piece of waxed paper. Help your child divide  the dough into four or five pieces. Show him or her how to push, pull, pound, squeeze, and stick things into the dough.