Area+Term+3

Recognise the need for square centimetres and square metres to measure area Estimate, measure, compare and record areas in square centimetres and square metres || **//Designer squares //** //Teaching measurement // Book2, page 55 Students cut out and decorate a 20 cm square, using technique such as paper weaving or printing or splatter painting. Students predict how many of their squares will be needed to make 1 m2 and how many squares will be left over. //Extension //: calculate the area of each tile and the cost of decorating at $3 per cm2.
 * Fairfield West PS, Area program Term 3, Year 3 **
 * MS2.2 Estimates, measures, compares and records the areas of surfaces in square centimetres and square metres **
 * **Knowledge and Skills ** ||  **Activity **  ||  **Registration **  ||
 * * recognising the need for the square centimetre as a formal unit for measuring area
 * using a 10 cm ´  10 cm tile (or grid) to find areas that are less than, greater than or about the same as 100 square centimetres
 * <span style="font-family: 'Arial','sans-serif'; font-size: 16px;">estimating, measuring and comparing areas in square centimetres
 * <span style="font-family: 'Arial','sans-serif'; font-size: 16px;">measuring a variety of surfaces using a square centimetre grid overlay
 * <span style="font-family: 'Arial','sans-serif'; font-size: 16px;">recording area in square centimetres eg 55 square centimetres
 * <span style="font-family: 'Arial','sans-serif'; font-size: 16px;">estimating, measuring and comparing areas in square metres
 * <span style="font-family: 'Arial','sans-serif'; font-size: 16px;">recording area in square metres eg 5 square metres
 * <span style="font-family: 'Arial','sans-serif'; font-size: 16px;">using the abbreviations for square metre (m2) and square centimetre (cm2)

<span style="font-family: 'Arial','sans-serif'; font-size: 16px;">Students use 1 cm grid paper to draw shapes which have an area of 10 cm2. Students record the area and perimeter of each shape.
 * //<span style="font-family: 'Arial','sans-serif'; font-size: 16px;">Area of 10 cm2 //**

//How much?// Students use 1 cm grid paper to design their name plates. Students calculate the cost of reproducing the name plates if colouring costs $5.00 per square centimetre. Extension: Find the total area of the numerals in a telephone number by drawing the numbers on 1 cm grid paper. Use the patterns from calculator numbers to draw. Find the total in square centimetres and record. Students use a 10 cm grid overlay to find areas of approximately 100 cm2. Students calculate how many 10 cm tiles would be needed to cover the area of a small whiteboard/desktop/computer screen/other classroom items. Students record the grid pattern of 10 cm tiles and record their calculations. //Extension//: How many square tiles of width 10cm would be needed to tile a floor 2m long and 1m wide? ||  ||
 * //Tiling//**