# MathsClass

A blog about teaching and learning in a maths classroom.

## MathsClass This Week 23 February 2013

Saturday, 23 February 2013 | 0 Comments

Today, MathsStarters Quick Quiz got an update with several additional quizzes. Bingo got a new game, ‘Writing Rates’. A GeoGebra applet for finding the formula for the arc length of a circle. Don't memorise the vertex formula as part of graphing a quadratic. Just go ahead and graph the thing. Let me show you the natural and easy way to do it! Missing Numbers (Addition) 21 Feb 2013

This interactive whiteboard resource is useful for introducing children to the concept of having the answer but not one of the numbers in the question.  An addition is shown with an answer but not one of the numbers being added.  The “20″ button generates questions with an answer below 20.  The “100″ button generates numbers with an answer below 100. Pi is famously calculated to trillions of digits – but Dr James Grime says 39 is probably enough. Approximating Integrals: Trapezoid Rule 19 Feb 2013

In this video, I show the formula and give one simple example of using the Trapezoid Rule to approximate the value of a definite integral. Approximating Integrals: Simpsons Rule 19 Feb 2013

In this video, I give the formula for Simpson's Rule, and use it to approximate a definite integral.

### This week on MathsFaculty

Favourite Colour – Bar Graph

Content: Interactive, IWB, Manipulative · File type: SMART Notebook · 17 Feb 2013 · by nmac

Posted in • MathsClassMathsFacultyMathsKitMathsLinks | Short URL: http://mths.co/2955

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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
MathsClass is about teaching and learning in a maths classroom. more→

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