Read the approaches used by the two teachers to teachsolving of linear equation, say 2x – 6 = 10 : Teacher A Teacher B Steps steps (a) Take 6 on other side (i) Equation always maintains equality. So same operation with same number can be performed on both sides to maintain equality (b) Change the sign of 6 and add to 10 (ii) Hence, 2x – 6 + 6 = 10 + 6 or 2 = 16 (c) Get 2x = 16 (iii){2x}/2 = {16}/2 or x=8 (d) Take 2 on theother side anddivide (e) Get x= 8 It can be observed that

Correct Answer is : teacher A emphasizes on instrumental understandingwhile teacher B emphasizes on relational understanding

teacher A emphasizes on instrumental understandingwhile teacher B emphasizes on relational understanding

teacher A emphasizes on relational understanding whileteacher B emphasizes on instrumental understanding

teacher A focuses on conceptual knowledge whileteacher B focuses on procedural knowledge

teachers A and B focus on instrumental understanding

CTET 2 Math and Science Feb 2014 Paper

Question : 57 of 120

Marks: +1, -0

Read the approaches used by the two teachers to teachsolving of linear equation, say 2x – 6 = 10 :

Teacher A	Teacher B
Steps	steps
(a) Take 6 on other side	(i) Equation always maintains equality. So same operation with same number can be performed on both sides to maintain equality
(b) Change the sign of 6 and add to 10	(ii) Hence, 2x – 6 + 6 = 10 + 6 or 2 = 16
(c) Get 2x = 16	(iii) ${2x}/2 = {16}/2$ or x=8
(d) Take 2 on theother side anddivide
(e) Get x= 8

It can be observed that

teacher A emphasizes on instrumental understandingwhile teacher B emphasizes on relational understanding
teacher A emphasizes on relational understanding whileteacher B emphasizes on instrumental understanding
teacher A focuses on conceptual knowledge whileteacher B focuses on procedural knowledge
teachers A and B focus on instrumental understanding

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