Learning by Doing (Basics) 1-2 YearRub and Smell Books Our Rub and smell books help the child to work or hone his olfactory smelling skills, It Comes in different themes flowers, Fruits & Vegetables food. Fruits & Vegetable Sorting Fruit and vegetable sorting activity is a hands on activity for sorting different fruits and vegetables. Learning by doing helps the children to remember the names of different fruits and vegetables.