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		How to Make Tools (Peace Corps, 1977, 51 p.)
			(introduction...)
			Information
			A temporary hammer
			A chisel
			A drill
			Saw made with two pieces of wood
			Saw made with four straight pieces of wood and string
			Permanent hammer with bamboo handle
			Permanent hammer with wood handle
			Tin can drill
			Holding the wood with a bench hook
			Another wood holder
			Knife from metal packing strip
			Combination saw and knife
			A screwdriver
			Tongs
			Tweezers
			Tin cutting using the chisel or a tin cutter
			A heating stand made from a tin
			How to make a round hole in a tin
			Making an equal arm balance
			Detecting changes in temperature without a thermometer
			Making a set of weights
			Conversions between metric, British and American weights and measures

Knife from metal packing strip

Fig. 34

Materials for the knife:

One piece of metal strapping from an old packing crate. The metal strip should be of a kind that is thick and does not bend easily. Length: about 10 cm Width: about 2 cm

Two nails, 4 cm long

One nail, 15 cm long

One piece of wood 12 cm long and 10 cm around

Hammer

Saw

Making the Knife

Put holes in one end of the metal strip. Use the 15 cm nail to make the holes. The holes should be placed in the metal strip as shown in the diagram.

Fig. 35

If the piece of wood is a branch of a tree, cut out one part as shown in the diagram.

Fig. 36

Hammer the two nails through the holes in the metal and through the wood. Use a saw to cut off the ends of the nails. Sharpen one edge of the metal on a hard stone or with a file. The knife is now ready to use.

Caution your pupils about using these knives. Some children will use the knife so that the sharp edge is coming towards them. This is dangerous. Tell them to carve away from themselves. They can also carve on a table.