#MeasurementAndSpace >[!info]- [Non-spatial measure A | NSW Curriculum Website](https://curriculum.nsw.edu.au/learning-areas/mathematics/mathematics-k-10-2022/content/stage-3/fa7e80b308) MA3-NSM-01 selects and uses the appropriate unit and device to measure the masses of objects MA3-NSM-02 measures and compares duration, using 12- and 24-hour time and am and pm notation >[!abstract]- Prior Knowledge >- Non-spatial Measure (Stage 2) ## Mass: Choose appropriate units of measurement for mass - Identify the appropriate unit and device to measure mass - Recognise situations where mass would be measured in thousands of kilograms or tonnes (t) ## Mass: Connect decimal representations to the metric system - Recognise the equivalence of whole-number and decimal representations of measurements of mass - Interpret decimal notation for masses - Measure mass using scales and record using decimal notation of up to 3 decimal places ## Time: Compare 12- and 24-hour time systems and convert between them - Recognise that 24-hour time is used to avoid confusion between am and pm - Read time using appropriate 24-hour time language - Convert between 24-hour time and 12-hour time using am or pm notation - Read, interpret and use timetables from real-life situations, involving 12- and 24-hour time