You may need to remind students to take into account the containers holding ingredients. Students must measure ingredients by mass, share in making and baking the food, and discuss the findings. This will help students remember to associate grams and kilograms with mass, millilitres and litres with volume, and centimetre, and metres with length. Students must create their own card using mass, volume, and length terms and relate these to standard measurement units. Awareness that even air has mass, can easily be demonstrated by students using a balance and both inflated and non-inflated balloons.
Students can fasten balloons to the ends of balances with elastics or string.
Two or three balloons at each end is sufficient for the mass of air in the inflated balloons to be evident. Draw and record what the resulting balance looked like. As an extension or an enrichment activity for some students, have them investigate how other civilizations may have measured things. Students must research and create their own report on some aspect of measurement from past times.