For comprehension practice at home, when we see our child answering different from model answer, how do we mark? any guidelines?

at p2, comprehension should be quite straightforward. i don't think it's all about the grades, but they are a good indicator of his performance! it's a big leap from primary two to higher levels, so you might want to start him on a very strong grounding. for my boy i started him with one-to-one tuition so that he gets good foundation for compre as well as compo! so far he's had very consistent good grades under this tutor's guidance she coaches him for math english and science.