Key: (1st/2nd/3rd) denote needed quantities: (1st) enough for 1 student doing all activities; (2nd) enough for 30 students working in self-paced pairs; (3rd) enough for 30 students working in pairs on the same lesson. Starred* items may be purchased below.
6/60/90: identical textbooks 1/10/10: meter sticks 1/10/10: large rubber stoppers 1/1/1: plastic jug of water with cap, one gallon * 1/1/1: roll of masking tape 1/10/10: rulers, centimeters or inches * 1/10/10: baby food jars with tight-fitting lids * 1/1/1: spool of thread * 1/10/10: spring scales, 2 to 3 Newton capacity (250 grams) 1/1/1: roll of plastic wrap 1/5/10: pair of scissors * 1/1/1: box of paper clips 1/10/10: ring stands (optional) * 1/5/10: single wheel pulleys 2/20/20: flexible-neck drinking straws, commonly sold in grocery stores. 1/1/2: paper punch tools 1/10/10: pieces of cardboard cut from boxes, about as long and wide as notebook paper. 2/20/20: index cards, 4x6 inches work best 1/1/2: staplers 1/1/1: bolts (optional) 1/1/1: can opener (optional) 1/1/1: nut cracker (optional) 1/1/1: broom 1/10/10: flexible wire, about 14 gauge (or a wire coat hanger and pair of cutting pliers) 1/1/1: strong smooth post, fixed upright 1/1/1: 20 foot cord or rope 1/10/10: medium-sized cans * 4/40/40: rubber bands 1/10/10: small lids from cooking oil bottles, or equivalent 1/10/10: large lids from mayonnaise jars, or equivalent *1/1/1: small nail or thumbtack 1/1/1: hammer * 2/20/20: straight pins 1/1/1: roll of string 1/1/1: flight of stairs 1/1/1: yard stick (or a one-foot ruler and string) 1/1/1: stopwatch 1/1/1: bathroom scale (optional) 1/5/10: hand calculators