| SI (Systeme International d'Unites) | | A measuring stick one metre long that is marked off in centimetres and usually millimetres. |
| Metric system | | A unit of linear measure equal to 12 inches (30.48 cm). |
| Referent | | A system of measurement based on British units. |
| Imperial System | | All areas are measured in square units (mm2, cm2, m2, km2). |
| Linear Measurement | | Comparative relation between things or magnitudes as to size, quantity, number, etc.; ratio. |
| Millimetre | | According to size and type. |
| Centimetre | | Is the process of comparing something with known, standard units. |
| Metre | | A 3-Dimensional shape. |
| Kilometre | | The basic unit of length adopted under the Systeme International d'Unites (approximately 1, 094 yards). |
| Inch | | Is the set of standard measures we use. These include: Length (metre, m), Mass (gram, g), Capacity (litre, L), Time (second, s). |
| Foot | | A metric unit of capacity. |
| Yard | | The overall area of a 3-D shape. For example, the surface area of a cube is the sum of all areas of all squares that make up the cube. |
| Mile | | A metric unit of length equal to one hundredth of a metre. |
| Ruler | | A metric unit of volume equal to one thousandth of a litre. |
| Caliper | | Volumes are measured in cubic units (mm3, cm3, m3). |
| Tape Measure | | A metric unit of length equal to 1000 metres (or 0.621371 miles). |
| Circumference | | A unit of linear measure equal to 5,280 feet, or 1,760 yards (about 1,609 kilometres). |
| Length | | The act or process of changing something to a different form; state of being changed. |
| Width | | A unit or system of units for measuring length where 10 mm equals 1 centimetre, 100 centimetres equals 1 metre and 1000 metres equals 1 kilometre. |
| Height | | Extent or distance upward: The balloon stopped rising at a height of 500 feet. |
| Perimeter | | A straight strip or cylinder of plastic, wood, metal, or other rigid material, typically marked at regular intervals, to draw straight lines or measure distances. |
| 3-D Object | | A 3-Dimensional shape. |
| Proportion | | A system of measurement in which all units are based on multiples of ten. The metre is the basic unit of length. |
| Conversion | | Are measured in units according to size and type. |
| Mental Mathematics | | A long, flexible strip or ribbon, as of cloth or metal, marked with subdivisions of the foot or metre and used for measuring. |
| Area | | A 3-Dimensional shape. |
| Surface area | | An item that an individual uses as a measurement unit for estimating. For example, the height of a doorknob above the floor is about 1 m, or the thickness of a dime is about 1 mm. |
| Square units | | The volume of a solid is the 3-dimensional space it takes up. |
| Volume | | The capacity of a container is the amount it can contain. It is measured in litres, and is closely related to volume. |
| Litre | | Calculations that are done in your head without the guidance of pencil, calculators or other aids. |
| Millilitre | | A 3-Dimensional shape. |
| Cube units | | The outer boundary, especially of a circular area; perimeter: the circumference of a circle. |
| Cone | | A unit of linear measurement equal to one twelfth of a foot (2.54 cm). |
| Cylinder | | The longest extent of anything as measured from end to end: the length of a river. |
| Prism | | A metric unit of length equal to one thousandth of a metre. |
| Pyramid | | The border or outer boundary of a two-dimensional figure. |
| Sphere | | An instrument for measuring external or internal dimensions, having two hinged legs resembling a pair of compasses and in-turned or out-turned points. |
| Metre stick | | Extent from side to side; breadth; wideness. |
| Measuring | | Representing something in three dimensions. |
| Quantities | | The area of a shape is the flat space contained within it. |
| Units | | A 3-Dimensional shape. |
| Capacity | | A unit of linear measure equal to 3 feet (0.9144 meter). |
