Math can be a headache for many, but hidden in the numbers are lots of interesting things. That’s why some people get really into it and choose to become researchers or teachers. These careers demand hard work and precision, especially for teachers who are responsible for passing knowledge on to others.
Yet, the online community often gets shocked by test questions and grading mistakes, like this case. A primary school student was given this problem: A rice store has 10,450 kg of rice. It sold 560 kg each week for 4 weeks. How much rice is left?
According to the problem, the student solved it correctly. They worked through two steps: first calculating the total rice sold over 4 weeks, then subtracting that from the original amount to find what’s left.
But for some reason, the teacher didn’t accept the answer and made the student redo it by subtracting only 560 kg (the amount sold in one week) from the total. This sparked a heated debate online about whether the teacher or the student was right.
At first glance, most people think the student was right and the teacher made a grading mistake. But some offered other explanations for why the teacher rejected the answer.
User B.D said: “Maybe the question is incomplete. It might be asking how much rice is left after one month, not per week. If it’s per week, the student’s answer is correct. If it’s per month, then the student did it right!”
Another user, T.M, suggested: “Maybe the original question was wrong, so the teacher asked to fix it but the student didn’t update their answer. The original problem requires two steps, but the answer sheet only allows space for one step, so the teacher probably changed the question to ‘the store sold 560 kg of rice’ and removed the ‘4 weeks’ part.”
Another comment read: “Maybe the teacher wanted the answer to be 10,450 minus (560 times 4) but rushed and missed it while grading!”
Teaching isn’t easy because teachers are the standard of knowledge and correctness for students to follow. Situations like this cause confusion not just for students but also parents, so they should be avoided whenever possible.
