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020 How Big is My Lunchbox

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Teacher Notes


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Activity OutcomeUsing language associated with length, area and mass. Posing questions. Using small numbers in a personal context.
MTS Set 1
NSW Curriculum NS1 Whole Numbers
Topics Understand Whole Numbers
Keywords Personal Context, Number Sense, Count
GroupingIndependent and whole class.
ResourcesLunchbox each. Objects suitable for measuring short lengths: small blocks, paper clips, counters, wool... Objects suitable for filling: 2 cm cubes, gumnuts, matchboxes...
Lesson Notes
  • Pose the question: "How big is your lunchbox?" Ask: How should we answer this question? Should we tell how long my lunchbox is?
  • Children talk about these questions before marking 'Yes' or 'No' to the question 'Should I tell how long my lunchbox is?' Repeat for each of the other questions on the worksheet.
  • Look back at each of the 'Yes' responses and discuss ideas and materials that could be used to make each measure.
  • Children collect together their materials to carry out their measurements.
  • Children use pictures, words and numbers to describe their lunchbox size.
  • Share findings.
ReflectionsAsk: What would you measure to tell how big your bag is?
Integration Links Health: What is a healthy school lunch? Investigate: What do other children have for lunch? What is a popular item children have for lunch? How are breakfast, lunch and dinner the same? How are they different?...
Time: What do you have for lunch today? What did you have for lunch yesterday? What would you like for lunch tomorrow?
When do you have breakfast? Dinner?

Internet Links Use the Internet to find out what children eat for lunch in other parts of Australia and in other countries - children make up a set of class questions to send to other schools.

AnswersNot applicable.