Measures in the primary curriculum

Weight - third and fourth class

Content for third class

The child should be enabled to

• Estimate, compare, measure and record the weight of a wide variety of objects using appropriate metric units (kg, g) e.g. everyday objects such as books, piles of copybooks lighter and heavier than 1 kg?
Use objects showing that there is no constant relationship between weight and size.
Handle and compare objects as an aid to estimation .
• Solve and complete practical tasks and problems involving the addition and subtraction of units of weight (kg and g)
Confine to totals which can be readily checked by weighing?

Content for fourth class

The child should be enabled to

• Estimate, compare, measure and record the weight of a wide variety of objects using appropriate metric units (kg, g) and selecting suitable instruments of
measurement?
Use and select from bathroom scales, kitchen scales, spring balance become familiar with major and minor markings on scales (e.g. 100 g markings, half kg, quarter kg).
• Rename units of weight in kg and g i.e. 2 kg 250 g = 2250 g
• Rename units of weight using decimal or fraction form i.e. 250 g = 0.25 kg = quarter kg.
confine to examples requiring only two places of decimals
• Solve and complete practical tasks and problems involving the addition, subtraction, multiplication and simple division of units of weight (kg and g).