In this activity, students use only their sense of touch to put sandpaper samples in order from finest grade to coarsest grade.
By the end of this activity, students should be able to:
- explain why touch is an important sense
- be aware that receptors in the skin are responsible for touch
- have an understanding of places where the sense of touch is useful in everyday life especially for those with disabilities.
Download the Word file (see link above) for:
- introduction/background notes
- what you need
- what to do
- student worksheet.
- Nature of Science
Some great inventions or technological advances have come about as a result of someone trying to solve a problem affecting a disadvantaged group in society. Braille is a system of raised dots enabling blind people to read. It was devised by Louis Braille in the 19th century. He was blind himself and his invention is still in use today.