When asked to solve 12 x 25, a child uses the following method :
12×25=3×4×25=3×100=300
As a constructivist mathematics teacher what will be your reaction to the strategy used by the child ?

Correct option is C

As a constructivist mathematics teacher, the goal is to nurture children's understanding of mathematical concepts by building upon their own ideas and experiences. In this case, the child has demonstrated an understanding of place value and decomposition by breaking down 12 x 25 into more manageable parts.
Rather than rejecting the child's approach, a constructivist teacher would appreciate their creativity and encourage them to explain their thinking to the class. This would allow other students to understand the child's reasoning and potentially come up with their own alternative methods.