DS came home with marking decimal numbers on a number line homework last Friday.
The first few were easy but then he had to say what various markings, labelled A to F, on the line were (ie what decimal number they represented. There were 20 places between 0.99 and 1.01. He just couldn't see that the numbers went into the thousandths and that the increments were 0.005 (actually, it took me a while to realise what was going on
). I think
he's got it now, but I wondered if this was standard year 5 work (he's top set, middle of)?
I was also wondering if marking/ identifying thousandths on a mainly unmarked number line was likely to come up in a GS exam?