Not sure if this is the right place for this but am in need of some advice please. My son is at primary school and has been set a piece of maths homework this weekend, the problem is its about odd and even decimals. I have always thought that only whole numbers can be odd or even, and decimals, fractions etc cannot be classified as either. I am currently teaching maths in a secondary school (although not maths trained - I am science trained) and have been doing so for about 3 years now. My problem is, how do I approach this? I don't want to undermine his school teacher, but equally I dont want my son (and others) being taught misconceptions. I don't want to go into his school and for them to think I'm being picky and awkward, nor do I want to ignite some primary vs secondary teachers knowledge row. Its not the first time this has happened - a few months ago my son came home with a list of calculations to do (eg 4 + 12 x 2 = ?) When I explained that there is a proper order for the calculations to be done in, and 12 x 2 should be done first then 4 + 24 he told me they'd been told to just do them in the order they were written. Am I just being picky, or do you think (as I do) that they need to be taught things in the right way now so they don't get confused later on? I am sure these pieces of work were given as my son and some of his classmates are quite bright so the teacher is trying to come up with 'harder' work for them, but I don't know how to approach it. Any comments/suggestions would be gratefully received!!