Category Archives: Lessons

By Hand

I love Desmos, I love graphing packages. I even like TI-8x graphic calculators (Even the old, old TI-82s with dodgy screen contrast). But sometimes it needs to be graphed by hand. Sharp pencils. Accurate marks. Slow, deliberate, calculation of points. … Continue reading

Posted in Classroom, General Maths Thoughts, Lessons, Pedagogy | 3 Comments

Trig Wheel

As requested on the twitters here is the trig wheel I shared with the folks in the PreCalc morning sessions at #TMC14. I’m going to repeat what I said there; I found this on someone’s blog. I don’t know now … Continue reading

Posted in Classroom, General Maths Thoughts, Lessons | 4 Comments

There’s questions here

from: https://www.spotify.com/uk/2013/ #MTBoS30 Day 6 EDIT: Sample questions: How many hours/days/weeks/months is that? What percentage of my year was spent listening to music? – is this a lot? Contextualise this? Compare with sleep? My top album doesn’t have a track … Continue reading

Posted in #MTBoS30, Lessons | 2 Comments

Standardised Normal Distribution [Hinge Questions]

This post is to check understanding of normal distributions when students are required to standardise. Note that the answers given are from using the normal table to look up P(Z < z), not a calculator method. a) The student mixed … Continue reading

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Resolving using F = ma [Hinge Questions]

This question is for checking students understanding of resolving forces using Newton’s Second Law F = ma Breakdown: a) Student has misunderstood how to use the parity of the force components. b) Correct solution c) Student has used the incorrect … Continue reading

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Force Diagrams [Hinge Questions]

This question comes fresh from teaching Mechanics 1; for assessing whether students can draw force diagrams involving motion. a) Student has selected the diagram where R is not perpendicular to the surface on which the object sits. b) Student has … Continue reading

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Kruskal’s Algorithm [Hinge Questions]

I wrote another Hinge Question: Decomposition: a) Student performed Prim not Kruskal starting at A,B,C,G or H b) Student performed prim starting at D, E, F or I c) Student allowed a loop to be created d) Student did Kruskal … Continue reading

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Do Farmers use Desmos?

Last year I wrote about min and max tasks with real life examples. This year I used the same ‘tray’ task again: But this time I used Desmos to collect their results: And then to check our function seemed valid: … Continue reading

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#ExploreMTBoS Task 4 – More listening, more learning.

This feels like a bit of a cop out for Mission 4; but I *did* host the #GlobalMath Autumn special. I figured I would write a post thanking all those who presented rather than talk about what went on – … Continue reading

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Hinge Questions

What is a hinge question? A check for understanding at a ‘hinge-point’ in a lesson, so-called because of two inter-linked meanings: 1) It is the point where you move from one key idea/activity/point on to another. 2) Understanding the content … Continue reading

Posted in Conferences, General Maths Thoughts, Hinge Questions, Lessons, Pedagogy | Tagged , , , , , | 7 Comments