Do you know what a length is? It is a measure of how big something is. This lesson we will look at measuring some lengths and making estimates on lengths.
This video looks at how to measure objects including making sure that the measurement tool is lined up to start at zero.
What is the length of the shaded bar in the image shown?
Choose the best estimate for the length of a train carriage.
$1$1 cm (centimetre) is about as big as your thumbnail
$1$1 m (metre) is about as long as two normal steps (for an average Year $3$3 student)
Use scaled instruments to measure and compare lengths, masses, capacities and temperatures