The role of the Sensorial activities is to increase powers of discrimination and awareness as the children isolate various sense perceptions. These activities help children differentiate the various objects in their world. This is done through matching, grading, and sequencing objects. These lessons form the foundation for mathematical, musical and scientific studies. Examples in the Sensorial area are: matching sounds or smells, matching or grading colors, grading by size, and learning plane and solid shapes.