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Table 1 Answers to the same question using different material (different parts omitted)

From: Investigation about representations used in teaching to prevent misconceptions regarding inverse proportionality

Type of picture: which part omitted

Complete picture, nothing omitted

A. Vectors omitted

B. Drawing omitted

C. Formula omitted

Answer

Number of students

%

No. of students

%

No. of students

%

No. of students

%

Last longer

16

29

7

50

0

0

11

22

Last shorter

0

0

2

14

2

9

2

4

Equal time

28

51

5

36

19

83

29

58

Failed to answer

11

20

0

0

2

9

8

16

Total in a group

55

100

14

100

23

101

50

100