Mathematics · Pedagogy of Mathematics
When asked to divide 348 by 17, many children calculated the quotient as 2 and the remainder as 8 because they wrote 2 instead of 20 in the tens place. As a teacher, what is the best way to address this conceptual error regarding place value in division?
- 1Ask the child to strictly memorize the formula: Dividend = (Divisor × Quotient) + Remainder, and verify the answer.
- 2Help the children use informal methods and estimation (e.g., 17 × 20 = 340) to see that the quotient must be around 20.✓
- 3Write the long division steps on the board and ask them to copy the algorithm again.
- 4Provide them with a large number of similar division problems for repetitive practice.
Correct answer
Help the children use informal methods and estimation (e.g., 17 × 20 = 340) to see that the quotient must be around 20.
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