Final answer:
Kesha and Marcus might have made a calculation error, failed to provide a clear explanation, or misinterpreted the problem. Understanding of concepts and effective problem-solving strategies are crucial in mathematics to avoid these pitfalls.
Step-by-step explanation:
The potential issue with Kesha and Marcus' solution could stem from several factors. Firstly, a mathematical error in calculations may have occurred, whereby they made a mistake in the basic arithmetic or algebraic manipulation of the problem.
Secondly, there might be a lack of explanation in their solution, indicating that they have not thoroughly communicated their reasoning or method, which is crucial to demonstrate understanding in mathematics. Lastly, a misinterpretation of the problem could lead to an incorrect solution, which suggests they may not have correctly comprehended the problem statement or figured out the appropriate approach to the problem.
It is essential in mathematics to ensure that students grasp the conceptual underpinnings of a problem instead of just following procedural steps. They need to understand what the numbers represent and how they interact with one another.
If Lee suspects that an answer is headed down the wrong path, it indicates a need to reevaluate the problem-solving strategies, such as identifying knowns and unknowns and assessing whether an answer is reasonable. Formulating a unique equation, for instance, can be a powerful exercise in reinforcing these concepts and highlighting that the choice of symbols and expressions to represent the problem is flexible, as long as they capture the concept accurately.
Therefore answer is d. Both A and B.