2014 PDGE Year 1 Inquiry with ICT

Anthony OR 柯志明, Juan de Dios Viramontes, Oct 23, 2014


  • 1. Question 1
  • 2. Diagonal Problem (Manual Counting)

1.

Question 1

Nine squares of sides 1 cm are put together side by side to form a figure of area 9 cm2. (a) What are the maximum and minimum perimeters of this figure? (b) List the other possible perimeters of this figure.

Anthony Or. Education Bureau, Hong Kong.
– Anthony OR 柯志明

2.

Diagonal Problem (Manual Counting)

[size=100][size=150]How many squares does the diagonal of the rectangle pass through? Find a rule to determine the number of squares.[br][b]Touch [/b]or [b]click [/b]to [b]shade [/b]and count the squares at the diagonal. Drag the red point to change the dimensions of the rectangle.[/size][/size]
Anthony Or[br]GeoGebra Institute of Hong Kong
– Anthony OR 柯志明

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