# GM4-1: Use appropriate scales, devices, and metric units for length, area, volume and capacity, weight (mass), temperature, angle, and time.

This means students will work with the commonly used units of the metric system and measurement devices for:

- Length- kilometre, metre, centimetre, millimetre, using rulers and tape measures
- Area- square kilometre, hectare, square metre, square centimetre
- Volume/Capacity- Cubic kilometre, cubic metre, litre (cubic decimetre), cubic centimetre using jugs, measurement cylinders
- Weight- tonne, kilogram, gram, using scales
- Temperature- degrees Celsius using thermometers

They should also be able to work with standard units for angle and time, degrees, hours, minutes, seconds. In carrying out measurement tasks students should be able to estimate approximate measurements, use units and devices that are appropriate to the task, for example measuring a cup of water in cubic centimetres, read scales with accuracy, for example a ruler to the nearest millimetre or a protractor to the nearest degree, and use symbols to record their results, for example 45mg (45 milligrams) or 6km ^{2} (6 square kilometres).

- Identify angles in the environment.
- Measure an angle using a protractor.
- Use angles to travel at a bearing.
- Anticipate the path of a ball as it bounces off a wall.
- Use rotational symmetry to create a logo.

- Identify a utility need or opportunity within the school and plan a response .
- Create a design incorporating key attributes identified.
- Investigate quality and comparative costs of possible construction materials.
- Cost ‘fit for purpose’ construction materials and prepare a budget.
- Draw plans300

- Understand and describe proportion using the language of mathematics.
- Make accurate metric length measurements.
- Understand the principles of scale.
- Understand that the value of the scale factor of a reduction is less than 1 and for an enlargement is greater than 1.
- Understand that the scale300

- plan an investigation
- discuss features of data displays using mean and mode
- state implications from investigation

solve problems with mass and volume

- Construct nets.
- Measure masses, capacities, lengths, and temperatures using scales and devices.
- Conduct investigations and present results.
- Carry out experiments and systematically record the results.

- Construct triangles with specified dimensions using two different techniques.
- Design and construct nets for three-dimensional objects.
- Name basic three-dimensional objects, especially those made with equilateral triangles.

sovle problems involving measurement units

Students develop their skills and knowledge on the mathematics learning progression, measurement sense, in a food technology context.

find approximate value of pi from measurement

interpret a tide chart

measure in millimetre with a ruler

create a graph to show data

Students will:

- decide on appropriate ways to measure the amount of water lost in
**Activity Two** - calculate percentages of large numbers and percentages of percentages.

Students should discover that:

- a small percentage of a large number can itself be a large number
- a familiar context can help give meaning to300

- Use thermometers to measure temperature in degrees Celsius.
- Investigate factors that influence temperatures.

- Uses the statistical enquiry cycle to plan and conduct investigations
- Identifies broad area to explore using the statistical enquiry cycle
- Poses investigative questions about summary and relationship situations
- Makes predictions/assertions about what they expect to find out

- Plans300

finding time before and after a given time

writing times in different ways

working with 12 and 24 hour clocks

find fractions and decimals of an hour

solve problems involving time zones

measure lengths

measure masses

express fractions of a circle in degrees

Students will:

- measure and record data on temperature change
- convert between temperature change and food energy units
- calculate the total energy needs and intake for sample menus, using food energy unit values
- investigate the relative proportions of energy provided by different foods in their diet.

Stude300

investigate capacity of containers

find volumes of cuboids

interpret charts

solve problems involving time and distances

solve problems involving time

solve problems inovle time rates

measure temperature changes