St George’s Day

Curriculum linksCovers many aspects of Level 1 and Level 2 Functional Mathematics and adult numeracy including decimals, multiplication, and area of rectangles, circles and compound shapes. Please refer to the download page for this resource on skillsworkshop.org for detailed curriculum links and related resources. The PPT includes mentions of other external sites / resources such as BBC Skillswise, BKSB and BBC Bitesize. Direct links are not provided so the tutor should read through and research these (or edit to include their own worksheets, etc.) before using this PPT.

April 2011. Kindly contributed by Mark Sergison, Dudley College. Search for Mark on www.skillsworkshop.org

This PPT was originally written for a 1.5 hour revision class. Alternative versions for 1hr and 2.5hr lessons are also available on skillsworkshop.

St. George’s Day

Warm-up Quiz1. The lengths of St. George’s swords were: 1.8m,

1.4m, 0.95m, 1.05m, 1.3m, 1.3m. What was the mean length of his swords?

2. Out of 800 soldiers who went battle, only 176 would return without injury. What percentage came back uninjured?

3. English troops outnumber the Welsh by 3:1. If there are 9000 Welsh troops, how many English will there be?

4. It took St. George 40mins to prepare, 1hr 20mins to ride to battle & 1.25hrs to slay the dragon. The total duration is?

5. St. George weighs 85kg. His armour is 2/5 of his weight. How much will he weigh when wearing full armour?

Answers1. 1.3m2. 22%3. 27,0004. 3 ¼ hrs5. 119kg

Lesson ObjectiveCalculate the area of shapes.

Lesson Outcomes• Correctly multiply decimals to calculate the area of at least 5

rectangles (all).• Correctly substitute numbers in a formula to calculate the area

of at least 5 circles (most).• Correctly combine the areas of 2 shapes to calculate the area

of at least 5 compound shapes (some).

Area of RectanglesUnderpinning skill = multiply pairs of numbers, particularly decimals:a) 75 x 3.4 =

b) 2.8 x 46 =

c) 115 x 2.7 =

d) 3.1 x 4.9 =

e) 6.12 x 7.3 =

255

128.8

310.5

15.19

44.676

Applying this skill• The rectangular banquet hall

needs new floor wood panels. It measures 28m long and 9.42m wide. What is it’s area?

263.76m²

Developing the skill.

• St. George wants a flag made so he can wave it after slaying the dragon. He wants it to be 2.3m long and 80cm high. What will its area be?

1.84m² OR 18,400cm²

Independent activity

Skillswise worksheet 1

ExtensionSt. George wants a rectangular section of ground prepared for swordsmanship training: He wants the area of the space to be 60m². What could the dimensions of the training ground be?

Formula• The area for a rectangle can

be written as a formula:Area of rectangle = LW

π = value of 3.14r = radius² = squared means the value

multiplied by itself

• The area of a circle is calculated using this formula:

Area of circle = π r²

Area of circle

78.5cm²

• What is the area of this cart’s wheel? It has a radius of 5cm.

Compound Shapes

What is a‘compound shape’?

Area of a compound shape• This is the plan view of St.

George’s bedroom. What is the area of the room?

72cm²

11 cm

8 cm

6 cm

2 cm

Area of Compound Shape

• This is the draw bridge from the castle. What is its area?

6.2m

4m

Area of rectangle • 4 x 6.2 = 24.8

Area of circle• r² = 2 x 2 = 4• π r² = 3.14 x 4= 12.56

Area of semi-circle• 12.56 ÷ 2 = 6.2824.8 + 6.28 = 31.08m²

Independent Activity

Computer Activity• Bitesize – Area Test Bite quiz.• Make a note of your scores on your

lesson Area session sheet.

Lesson ObjectiveCalculate the area of shapes.

Lesson Outcomes• Correctly multiply decimals to calculate the area of at least 5

rectangles (all).• Correctly substitute numbers in a formula to calculate the area

of at least 5 circles (most).• Correctly combine the areas of 2 shapes to calculate the area

of at least 5 compound shapes (some).