The addition of texture to the painting process can help kids better understand certain techniques or styles employing chunk-like mediums or layers of thick color such as Impressionism. It can improve fine motor skills and build a better understanding of the five senses. According to the Sensory Processing Disorders Resource Center, children who have sensory integration disorders need fine motor reinforcement or are visually impaired can particularly reap the benefits of textured art projects.
The number of materials to use for painting activities with texture is almost limitless. Begin with a paint medium, making sure it is non-toxic and safe for the child's age. Use washable temperas or finger paints for young children. Older kids can use acrylics, but these may be more difficult to wash out of clothing. To add texture, try a variety of art materials and household objects. Create rough textures with glitter or craft sand and bumpy textures with beads, pebbles or corrugated paper. For an entirely different, smooth texture, use acetate, foil or even flat fabrics.
One approach to implementing sensory motor painting activities is to create your own mixture of a textured medium. Either pre-mix a batch of sensory paint or encourage the kids to experiment with their own concoction. This works best with rough or scratchy textured additives such as craft sand or glitter. Combine the textured material with tempera paint in a plastic cup or bowl. Mix in as much or as little as you want and stir with the handle of a thick paint brush. Paint on plain paper or textured stock such as corrugated board. Allow kids to use brushes as well as their hands to apply the textured mixture.
Although rough and bumpy textures are sometimes seen as the standard for sensory art projects, smooth textures should not be forgotten. As paint is a mostly smooth medium, there is no need for additional ingredients. Instead, explore silky or smooth textures by painting on a flat surface such as acetate or metallic origami paper. Encourage kids to make zigzag, swirling or linear motions with their hands, allowing them to feel the interaction between the slippery paint and smooth surface.