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Table 3 Issues about the number sentences and explanations

From: Developing preservice elementary teachers’ specialized content knowledge: the case of associative property

 

Illustrating AP

Pretest

Posttest I (mid-term exam)

Posttest II (final exam)

Freq

%

Freq

%

Freq

%

Generating number sentences

Attending to the literal order

18

72

8

32

0

0

Having no meaning in the 2nd step

1

4

5

20

1

4

Correct number sentences

6

24

12

48

24

96

Providing explanations

Explaining numbers only

19

76

18

72

6

24

Partial- or pseudo-explanations

5

20

3

12

4

16

Complete explanations

1

4

4

16

15

60