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Latest posts made by tony chua
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RE: How to find time difference?
My girl (Jurong West Primary School) , P3 has just received back her SA2 maths paper and was surprised to see her teachers gave her wrong for the 2 time differences questions as per below .
1.\tAnna left home at 6.45am and arrived in school at 7.25am.
How many minutes did she take to reach her school?
(She took 7.25 minus 6.45 an got an answer of 40 min)
However, her teacher gave her wrong and wrote “wrong expression” in the paper. Teacher even told her there were no such way in doing time!
2.\tHuimin started reading a book at 8.30am.
She took 1 h 42 min to finish reading the book.
What time did she finish reading the book?
(She took 8.30 + 1.42 and got an answer of 9.72, converted into 10.12am)
Again, the teacher gave her wrong and wrote “wrong expression” and “fluke” next to her answer!
I like to ask all parents and hopefully there are teacher here – why she got wrong for above? why the teacher must force pupils to use the time-line method?