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GM1-1: Order and compare objects or events by length, area, volume and capacity, weight (mass), turn (angle), temperature, and time by direct comparison and/or counting whole numbers of units.

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Elaboration on this Achievement Objective

This means students will go through a stage of using direct comparison to establish the relative length, area, volume, weight and temperature of objects. This means that the objects are brought together physically. Through experiences using direct comparison techniques students will come to appreciate the need for units of measure so that objects can be compared without bringing them together. Units have the attribute being measured, have to be the same size and are combined and counted. For example handspans can be used to compare the length of a table and the height of a door. Students are expected to apply their number strategies to count these units. Students are expected to explore turns (angles) through bodily movement and time through comparing durations of events.

 

Teaching resources for this Achievement Objective
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Twice My Size

Level One
Integrated
Picture book activities
This is an activity based on the picture book Twice My Size. This book may no longer be available for purchase.
  1. Students will be able to explain the idea of doubling in measurement (measure it and then add/count on the same number of units to get the new measurement)
  2. Students will be able to measure an object in non-standard units and find “twice” or “double” by counting.
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Visiting Grandma

Level One
Geometry and Measurement
Problem solving activities
This problem solving activity has a measurement focus.
  • Use a calendar to tell days of the week.
  • Devise and use problem solving strategies to explore situations mathematically.
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Worms and more

Level One
Geometry and Measurement
Units of Work
This unit comprises 5 stations, which involve the students in developing an awareness of the attributes of length and area. The focus is on the development of appropriate measuring language for length and area.
  • Compare lengths from the same starting point.
  • Use materials to make a long or short construction.
  • Use materials to compare large and small areas.