# Area Units of Work

Area is a two-dimensional concept related to the geometric concept of an enclosed region. It is defined in the maths curriculum as the size of a surface expressed as a number of square units. Investigations of the size of an area should begin with comparisons between different surfaces and progress to the use of non-standard, and then standard, units. The use of formulae to calculate the areas of common polygons is the final stage of the learning sequence.

### Level 1 Area

 Achievement Objectives Learning Outcomes Unit title GM1-1 compare lengths from the same starting point use materials to make a long or short construction use materials to compare large and small areas Worms and more directly compare the area of 2 objects by superimposing cover a shape with smaller shapes Prints and Outlines cover a shape with non-standard area units and count the number used compare and order areas of shapes using non-standard area units Great cover up

### Level 2 Area

 Achievement Objectives Learning Outcomes Unit title GM2-1 recognise the need for a standard unit of area measure surfaces using square centimetres estimate the measure of surfaces using square centimetres Outlining area

### Level 3 Area

 Achievement Objectives Learning Outcomes Unit title GM3-1 construct a square metre and use it to measure areas estimate and measure to the nearest square metre How much room? GM3-2 use multiplication to calculate the area of a rectangle measure the length of a side using a ruler use proportional reasoning to find the area of a rectangle Areas of Rectangles GM3-2 understand attributes of a measurement unit for area understand the relationship between area and perimeter use patterns to find the area of shapes Fill it up - flat space

### Level 4 Area

 Achievement Objectives Learning Outcomes Unit title GM4-1 GM4-3 use a formula to calculate the area of rectangles and squares investigate the relationship between the perimeter and area of rectangles What goes around... GM4-3 NA4-9 explore the relationship between rows and columns in finding the area of rectangles calculate the area of rectangles, parallelograms, and triangles You can count on squares! GM4-3 recognise that two identical right angled triangles can be joined to make a rectangle recognise that a triangle has half the area of a rectangle with the same base and height lengths apply the rule 'area of triangle equals half base times height' Triangles GM4-3 understand and apply the rule ‘area of triangle equals half base times height’ connect the area of a parallelogram to the area of the rectangle from which it can be created find the volumes of cuboids with whole number dimensions Areas and volumes

### Level 5 Area

 Achievement Objectives Learning Outcomes Unit title GM5-4 find areas of shapes find simple two-variable linear patterns relating to areas Fences and Posts GM5-3 GM5-5 GM5-10 apply Pythagoras' theorem use their knowledge of the sum of interior angles of a polygon construct angles based on halving and combining 90° and other straightforward angles apply knowledge of length and area How High? GM5-4 GM5-9 NA5-4 use scale factors to investigate areas being enlarged use scale factors to investigate volumes being enlarged solve real life context probelms involving scale factors Scale Factors for Areas and Volumes