Area Sequence

Area and Perimeter Date:

Duration of Lesson: Week

Class Size: 18

Level: Grade 5 and 6

long sequence Topic: Measurement (Area and Perimeter) Focus: Calculating area and perimeter of Squares, Rectangles and compound shapes.

VELS Focus: VELS Strands

Level: 4

Domains: Mathematics

Dimensions: Measurement

Key elements of standards to which lesson is focused:

‘They measure as accurately as needed for the purpose of the activity.’

Equipment/Resources Required:

Counting area with Coco (Digilearn)

Centimetere Grid on A3 paper

Catalogues

Scissors and Glue

Stage/Time

Tasks – Student Action, Activities, Group Formation

Teacher Action including assessment

Monday

AREA MONDAY RESOURCES: ‘Finding area’ worksheet Introduction - area is the surface that a shape covers. Measured in cm, m, km square. -

Cm km m etc measures the length of a line, cm square measures the surface a shape covers.

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To work out the area of squares and rectangles we measure the length by the width (i.e two sides that aren’t parallel)

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The first shape in Coco (L139) demonstrates this nicely.

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We need to apply this knowledge to help us work out the area of compound shapes (shapes that are a combination of squares and rectangles)

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Scaffold by using the next shape on Coco.

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Ask for input on the third shape

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Explain how they are to go about working out the area of the shapes on the first sheet. It is importat they develop a strategy for solving the area of compound shapes.

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I’ll demonstrate that they need to draw the shapes as they split them up in their head in their maths book to demonstrate they have a good strategy for working out compound shapes.

Wednesday and Thursday

WEDNESDAY AND THURSDAY ACTIVITY: House Design GOAL: To practically apply knowledge of area and perimeter and develop skills further in calculating area and perimeter. Students have been working on developing skills in area and perimeter over the course of Monday and Tuesday sessions. These sessions have shown they are competent at working out the area and perimeter of squares and rectangles, and are also beginning to draw shapes to meet a requirement (e.g. draw a shape with an area of 6 cm2. This activity aims to have students practicing these skills in a ‘real life’ context. ACTIVITY Resources: A3 grid sheet, House Design workout sheet, trundle wheel, Catalogues. • • • • • • • •

Begin with a brief reflection of area and perimeter to have students keying in to the lesson. Explain we are going to apply our skills practically, to design a dream home. There are only a few requirements of our dream home (must fit on A3 sheet provided, single story. Consideration must be given to types/ number of and size of rooms. 1 square on A3 sheet equals 1 m². Grey lead must be used, and MUST use a ruler. All rooms must be labeled neatly (demonstrate on the board) On the workout sheet, areas and perimeters of rooms must be shown. (this is to test that their ability to calculate area and perimeter is correct)

By the end of Wednesday, students should have completed their house layout. Should they finish earlier, they can move into Thursday’s activity. THURSDAY Students will be given an array of catalogues and a budget to ‘furnish’ their house. The workout sheet and chosen items will be pasted onto an A3 sheet to be combined with their design, and showcased on the wall.