**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).