While solving a problem on addition, ‘234 + 42’, a student said aloud: “If it were 40 then it would be 244, 254, 264, 274 but its 42, so it will be 274 + 2 = 276", therefore 234 + 42 is 276. Which one of the following statements is correct for the strategy used by the student?

While solving a problem on addition, ‘234 + 42’, a student said aloud: “If it were 40 then it would be 244, 254, 264, 274 but its 42, so it will be 274 + 2 = 276", therefore 234 + 42 is 276. Which one of the following statements is correct for the strategy used by the student? Correct Answer <span style="">Use of Informal strategies in mathematics help a teacher to know the process of child's understanding of a concept</span>

Mental maths- It is a set of cognitive methods that improve number sense and flexibility of thought. It is the act of mentally calculating without the use of external memory aids. It boosts computational fluency by increasing efficiency, precision, and adaptability.

Key Points

  •  Benefits of oral computation in the classroom-
    • By this process math is done in the mind quickly and efficiently and also helps in doing math instantly without the effort put into operations and processes. Using these strategies will help the teacher to know the children's process of understanding concepts.
    • Mental computation and mathematical reasoning have a significant positive link. It's worth noting that rather than exposing children to typical classic problems, they should be able to cope with exceptional routine problems, and young children, in particular, should be encouraged to use oral computation to acquire these skills.

Hence, we conclude that using these strategies will help the teacher to know the process of a child's understanding of a concept.

It is already discussed above that using oral strategies should be encouraged in the class as these indicate the student's conceptual knowledge and also help the teacher in managing the classroom hence other options are wrong.

Related Questions

When posed with a problem on subtraction, '400 - 45', a student responded. “If it were 40, then the answer would be 60, but its 45 so its 55, 155, 255, 355, therefore, 400 - 45 is 355.” Which one of the following statements is correct for the strategy used by the student?
To solve 27 × 4, a student uses the following strategy: 27 × 4 → 30 × 4 → 120                  3 × 4 →  - 12                                  108  She says aloud the answer is 108.  Which of the following is most appropriate for the strategy used by the student?