TickTockMaths

Tag: mean

  • A mountain of updates

    So I had some free time last week and I decided to get some resources made/updated and published. Last week I published:

    This year I’m going to try harder to get closer to more coverage with some of my slides. It’s a bit spotty at the moment. I’m going to be filling in gaps and getting stuff published, even if that stuff isn’t groundbreaking.

    It’s always been in my eye to get full coverage up to GCSE. But that is a HUGE undertaking. It really makes you realise how CRAMMED with content the GCSE is, and how it does need scaling back a bit.

    I’m closing in on Grade 1 full coverage. I just need to get some ordering negatives, multiplying negatives, coordinates and pictogram slides done. I know there’s no such thing as ‘grade 1 topics’, but I’m finding the Maths Genie list of topics useful and I’m working from that.

    Anyway, I hope some of this is useful to some of you.

    Rich

  • Estimating the mean from a grouped frequency table

    Download the resource here

    Starts with a little task on finding the midpoint. I often find this trips students up more than you would think.

    Moves onto some example problem pairs and then a very (overly?) structured worksheet.

    I don’t know how I feel about this level of scaffold. At least it reduces.

    Then some questions that I wrote that I really like.

    And then… that’s it. This filled the lesson nicely and I really didn’t feel like I needed much else.

    Maybe I could have done a section where the mean is given but there is a hidden frequency, but I didn’t want to be overly prescriptive.