Preschoolers enjoy sensory play and find it a useful way to pick up concepts and solidify ideas. Here are some ways to incorporate sensory play into school or home play. Play dough A standard salt play dough recipe of 1 cup of salt, 1 cup of water and 2 cups of flour can make some all-natural non-toxic play dough. Try dying the play dough with natural food dye for an extra pop of colour.