Activities in this teaching pack include a differentiated set of worksheets to practise filling bags with different sets of objects to match a range of masses in kilograms using some kitchen scales to model how to measure the bag masses by reading the kilogram scale divisions correctly.

The interactive presentation gets the children to explore how to fill different sized bags bags with sets of objects to match a range of masses in kilograms.

This lesson is part of a maths scheme of work to get the children to estimate, measure and compare the mass of different sized objects using standard units of measurement for grams and kilograms. There are teaching activities for shared learning, differentiated worksheets to support independent learning and interactive presentations to introduce concepts and key skills.