Home > Stage 2 > Non-spatial measure > Make a shot put
Recognise the need for a formal unit to measure mass
Identify familiar objects that have a mass of about one kilogram
Find objects that have an estimated mass of more than, less than and about the same as one kilogram and check by comparing to a 1 kg mass
Indoor or outdoor playing area
Fabric, string, sand
Tape measure
Measuring scales
Pencils and paper
Set up tables with equipment needed to make shot puts.
Set up throw line.
Students make a 1 kilogram shot and then participate in a shot put competition.
Students make a 1 kilogram shot by putting sand in a piece of fabric or old pillow case and tying very firmly with string.
Students putt the 1 kilogram shot and estimate then measure the distance thrown.
Having a metre ruler available as a visual support may assist students to estimate distance.
Students predict, then measure, how far a 2 kilogram shot can be thrown.