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What will you learn today? (something you did not know yesterday) Identify areas you need to develop: Measure Shape and Space

Perimeter The perimeter is the distance all the way around the edge of a shape. To calculate the perimeter, measure all the sides and add these measurements together. All the units must be the same. Find the perimeter of the 2 shapes below. 2.5m 180cm

Area The area of a shape is a measure of the surface covered by a given shape. Area is measured in square units e.g. square millimetres (mm²) square centimetres (cm²) square metres (m²) square kilometres (km²). Remember that all measurements should be in the same units when calculating the area. To calculate the area of a rectangle we use the formula: A = l x w

Find the Area of the 2 shapes below.

Volume Volume is a measurement of the space enclosed in a 3D shape and is measured in cubic units, e.g. mm³, cm³, m³. When calculating the volume of a shape, all the measurements must be in the same units. The formula for calculating the volume of a cuboid is: Volume = length x width x height.

Calculate the volume of the 2 shapes below

Scale Diagrams It is not possible to draw on paper the actual size of real life objects like airplanes, buildings or cars so we need scale drawings to represent these drawings. Scale diagrams use ratio to show this representation. If a diagram has a scale of 1:100, this means that for every 1 m, 1 cm or 1 mm, the actual size is 100 times bigger.

So on the plan the room would measure 16 cm x 10 cm Example of using scale The scale on a road map is 1 cm to 10 km and the distance between 2 towns on the map is 2 cm, what is the actual distance? 1 cm represents 10 km, then 2 cm must represent 20 km. So the actual distance is 20 km. The actual measurements of a room are 800 cm x 500 cm and the scale is 1:50. To work out the length of each side of the room on the plan, you divide each measurement by 50 cm. 800 cm ÷ 50 cm = 16 cm 500 cm ÷ 50 cm = 10 cm So on the plan the room would measure 16 cm x 10 cm

Level 2

Calculate what one small square is… How long is: Calculate what one small square is…

Reflection of the lesson What did you learn new today? Why did you learn it? How are you going to remember it?

Back to targets Can you now use probability vocabulary, write probabilities as fractions, decimals or percentages and use a probability scale?