Tag: equations

  • Rearranging formulas and equations

    Download the PowerPoint here.

    This is a big one! It’s at a minimum 3 lessons, probably 4.

    Starts numerically

    I like this

    Next is something I have added after listening to the Mr Barton podcast with Naveen Rizvi. I realised I didn’t spend enough time talking about what the subject means!

    Some example problem pairs come next, and two activities. One on making sure that you can put the steps in the right order, one a simple grid of questions (although thought about and grouped properly). There’s also some mini-whiteboard work.

    I should have added more questions on using just a single step, I think. Maybe I’ve moved too quickly. This is on my to-think-about list for the next time that update this resources. Of course, comments on this post or to @ticktockmaths on twitter are highly welcome.

    Some stuff on using this with scientific formulae.

    Moves on to using factorising including an activity and a ‘write the missing line of working’ activity.

    Finally, multiplying across, regrouping, and then factorising.

    This section is a tad underdeveloped (it does have a learning check, though), but the PowerPoint was getting quite long.

  • New lesson: Finding roots of quadratics by factorising

    This is my biggest set of lesson stuff yet.

    The PowerPoint introduces the topic. It sets up some example-problem pairs.

    It then leads onto some vary and twist questions, which are available here as Word file.

    The PowerPoint then goes onto talking about solving when rearranged and includes a Victorian textbook exercise and some questions where you have to find x, given the area of some shapes (this took ages to do. I posted it to Twitter twice. Both times the questions were written wrong. Doh!)

    I’ve also included an open middle problem solving thing and a timed learning check, that graduates in difficulty.

    Talking about learning checks…I’ve also written some Timed Questions that increase in complexity every 3 questions. I now have over 6000 questions in my Timed Questions database!

    As always, comment and critique.

    There’s probably 2 lessons of stuff here, easily.

    EDIT: One of the area problems was still wrong! Thanks to Professor Smudge for catching that 🙂