Imagine that! Arvind Gupta's active science workshop, Oct 2009
‘Science and math are all around us, we just fail to notice it,’ rued Gupta as he demonstrated how number patterns recur in the ubiquitous calendar. The day-marker was then set aside to make way for a series of exercises in paper-folding and origami. Over a period of eight hours the 40 participants transformed from stodgy teachers to eager, excited children who delightedly applauded every one of the science wizard’s many ‘tricks’. Caps were made and stories told. A rectangular cap became a square hat which in turn became a box. A captain’s hat became a ship which became a T-shirt. Frisky paper rabbits bounded about to the beat of little paper clappers. Then it was time for some serious mathemagic. All focus and concentration, the participants made the unending 14-page-book and the flexagon. Child’s play. And what a wonderful way to explore shapes and angles!
The resources used at the workshop were inexpensive everyday material: discarded toothpaste tubes, old film cans, cycle spokes, old rubber chappals (‘I pick these up from the road and my wife feels very embarrassed.’), match sticks and matchboxes, string, ice cream sticks, safety pins, nuts, bolts and wires…Arvind’s advice is to not throw anything away. Hoard, hoard, hoard. You never know when you may need the ‘junk’ to manufacture an instant toy.
Centripetal force was demonstrated with the use of a broomstick and a piece of rubber chappal; a hangar and a five rupee coin came in handy to show the force of rotation; nails performed a balancing act on a piece of wood; vibration was a piece of paper spinning at the end of a T-pin attached to the eraser end of a pencil. Accompanying the experiments were endless anecdotes and stories, some from real life, some from mythology and some made up, that had all spellbound.
There were 40 participants in all and they included representatives from NGOs and schools. Several, like young Govindraj’s group, had come from small rural and semi-rural areas in Tamil Nadu, Karnataka and Andhra Pradesh. They made over 20 science and math toys and went away with a light in their eyes and the satisfaction of lessons well learnt.