Selecting and Using Appropriate Numerical Notation and Units

Understanding Numerical Notation

Numerical Notation involves the way numbers are written and understood.
It’s important to be able to read and write numbers in whole number form, decimal form, and fractions.
Required to understand scientific notation, especially when dealing with very large or small values.
Recognise the difference between positive and negative numbers in context.
Understand ordinal numbers (1st, 2nd, 3rd, etc.) and their use in different contexts.

All numerical values should be presented with appropriate units, unless they are dimensionless.
Familiarise yourself with common units such as kilograms for mass, metres for length, and seconds for time.
Need to understand metric prefixes such as kilo-, centi-, and milli-.
Conversion between different units within the same system, e.g. centimetres to metres, is crucial.
Learn to convert between imperial and metric units for some values like length (miles to kilometers) and weight (pounds to kilograms).
Understand time conversions, including seconds to minutes, minutes to hours, and hours to days.

Accurately use appropriate numerical notation and units in problem-solving situations.
Consider the appropriate level of accuracy or estimation based on the context of the problem.
Recognise when conversion between units is required in a problem.
Determine the appropriate scale for reading diagrams, maps or similar representation.
Check final answers to ensure they are in the correct format and feature the correct units.