Focus

• recognise that length is the distance from one point to another
• use a given strategy to measure objects using non-standard units
• explain why more short units than long units are needed to measure the same length
• recognise the limitations of using non-standard units
• establish benchmarks for centimetres and metres and identify situations where they could be used to measure length
• use a centimetre ruler (displaying whole and half units) to measure length
• use a 1 m piece of string, with knots at ¼ m, ½ m and ¾ m to measure the lengths of large objects

This resource helps teachers develop concepts and demonstrate processes using PowerPoint animations.