don steward
mathematics teaching 10 ~ 16

Monday, 22 May 2017


place value, zooming in
reversing the question
harder generalising

Friday, 12 May 2017

half is in the middle

what do students notice about the results?

why is that?

fraction addition denominators multiples

to start adding fractions it can be helpful if one denominator is a multiple of the other
so that only one denominator needs to be changed

in England such work is offered to 9 to 10 year olds (Y5)

fraction cancelling

powerpoint here

sometimes, as in question (7), you only part-cancel a fraction in order to find the nth term rule
sometimes, for other fraction sequences, there is a stray fraction that cancels - not part of the general cancelling rule
some features of an overall generalisation are relatively easy to discern
and others aren't (for me anyway)

Wednesday, 3 May 2017

Saturday, 29 April 2017

dividing a fraction by a whole number

a powerpoint is here

four consecutive numbers

developing an idea from the Y6 'mastery' resources at the NCETM site