Use ratio notation to compare things. Identify when an abstract model is being used. Identify when a physical model is being used, and what its parts Explain why models are used. represent. Recognise the need to convert Use a simple physical model to measurements into the same units in explain a simple phenomenon. order to compare them. Record numbers using appropriate Recall the meanings of some prefixes units for common measurements (e.g. used in the SI system (centi, milli, kilo). of length, mass, time, temperature, Present data in line graphs and scatter current). graphs. Identify line graphs and scatter Identify patterns using scatter graphs. graphs, and extract simple Calculate the outcome of a percentage information from them. increase or decrease. Calculate percentages. Express one number as a percentage of another. Round numbers to a given number of decimal places or significant figures. Decide on an appropriate level of accuracy before rounding numbers.
Use ratio notation to compare things. Identify when a physical model is being used, and what its parts represent. Use a simple physical model to explain a simple phenomenon. Record numbers using appropriate units for common measurements (e.g. of length, mass, time, temperature, current). Identify line graphs and scatter graphs, and extract simple information from them. Calculate percentages. Express one number as a percentage of another. Round numbers to a given number of decimal places or significant figures. Decide on an appropriate level of accuracy before rounding numbers. Identify when an abstract model is being used. Explain why models are used. Recognise the need to convert measurements into the same units in order to compare them. Recall the meanings of some prefixes used in the SI system (centi, milli, kilo). Present data in line graphs and scatter graphs. Identify patterns using scatter graphs. Calculate the outcome of a percentage increase or decrease.