P4 Area (I)

GeoGebra Institute of Hong Kong, Dec 9, 2014

Table of Contents

  1. Comparing Areas Directly
    1. Comparing Size by Cut and Paste Q1
    2. Comparing Size by Cut and Paste Q2
    3. Comparing Size by Cut and Paste Q3
  2. Comparing Areas using Improvised Units
    1. Choosing a Suitable Shape for Measuring Areas
  3. Areas of Rectangles and Squares
    1. Area of Rectangles and Squares (1)
    2. Area of Rectangles and Squares (2)
  4. Measuring Areas of 2-D Shapes
    1. Question 1
    2. Question 2
    3. Question 3
    4. Question 4
    5. Question 5
    6. Question 6
    7. Question 7
    8. Question 8
    9. Question 9
  5. Area and Perimeter
    1. Variety of Perimeters with Fixed Area
    2. Variety of Areas with Fixed Perimeter

1.

Comparing Areas Directly

  • 1. Comparing Size by Cut and Paste Q1
  • 2. Comparing Size by Cut and Paste Q2
  • 3. Comparing Size by Cut and Paste Q3

1.1.

Comparing Size by Cut and Paste Q1

Comparing Size by Cut and Paste Q1
– Anthony OR 柯志明, GeoGebra Institute of Hong Kong

1.2.

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1.3.

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2.

Comparing Areas using Improvised Units

  • 1. Choosing a Suitable Shape for Measuring Areas

2.1.

Choosing a Suitable Shape for Measuring Areas

Choosing a Suitable Shape for Measuring Areas
– GeoGebra Institute of Hong Kong

3.

Areas of Rectangles and Squares

  • 1. Area of Rectangles and Squares (1)
  • 2. Area of Rectangles and Squares (2)

3.1.

Area of Rectangles and Squares (1)

Area of Rectangles and Squares (1)
– GeoGebra Institute of Hong Kong

3.2.

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4.

Measuring Areas of 2-D Shapes

  • 1. Question 1
  • 2. Question 2
  • 3. Question 3
  • 4. Question 4
  • 5. Question 5
  • 6. Question 6
  • 7. Question 7
  • 8. Question 8
  • 9. Question 9

4.1.

Question 1

– GeoGebra Institute of Hong Kong

4.2.

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4.3.

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4.4.

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4.5.

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4.6.

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4.7.

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4.8.

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4.9.

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5.

Area and Perimeter

  • 1. Variety of Perimeters with Fixed Area
  • 2. Variety of Areas with Fixed Perimeter

5.1.

Variety of Perimeters with Fixed Area

Drag each of the following numbers of squares together so that they are all touching side by side. Record the possible perimeters of the figures obtained in the table.[br](a) [b]3[/b]; (b) [b]4[/b]; (c) [b]5[/b]; (d) [b]6[/b]; (e) [b]7[/b]; (f) [b]8[/b]; (g) [b]9[/b].
Anthony Or. GeoGebra Institute of Hong Kong.
– Anthony OR 柯志明

5.2.

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