The brain and skin are the first organs to develop in a fetus. They emerge simultaneously out of the same layer of embryonic tissue. The skin is often called the outside layer of the brain. Let your child “experiment” with touch as a sensory system of the brain.
- Gather 16 samples of different textures….sandpaper, cloth, carpet, wood, etc. and two large pieces of cardboard.
- Cut two, 2-inch squares from each of the textured materials so that you have two identical sets of 16 pieces.
- In rows of four, glue one set of 16 onto each cardboard. Be sure to arrange the textures in different order on each cardboard.
- Blindfold your child. Ask your child to use his/her fingers to find four matches on the two cardboard sheets. Time how long it takes to find four matches.
- Let your child use their palms or elbows.
- Involve other members of the family to see who has the fastest speed.
- Have a family discussion about the experiment and what was learned.