A blog about teaching and learning in a maths classroom.

@mathslinks — Added to MathsLinks: Indeterminate: the hidden power of 0 divided by 0 via @Mathologer 2 Dec ago

Data values vs scores

Sunday, 30 October 2016 | 0 Comments

Note for self really,

In the new NSW Syllabus for Mathematics K-10 what used to be referred to as scores when analysing data are now called data values.

So the definition of mean is written as

$$\bar{x}=\frac{\text{sum of data values}}{\text{number of data values}}$$


Post it Pythagoras

Saturday, 15 October 2016 | 0 Comments

Inspried by this, Pythagoras in 2 minutes.

I used Post-It notes to demonstrate Pythagoras' Theorem to a class.

Example of post-it Pythagoras

There's something nice and tangible about this simple demonstration.

I turned the idea into a animation:

Dice - MathsStarters

Saturday, 08 October 2016 | 0 Comments

I've updated the electronic dice on MathsStarters. Includes ready to go Multo and Addo cards.
Variations of dice include two six-sided dice, two ten-sided dice or two custom dice (0 to 20) - the dice can show multiplication or addition and answers.

MathsStarters Dice logo image

Bingo: Fractions, decimals and percentages

Tuesday, 09 February 2016 | 0 Comments

I've added an additional game under the Fractions category on MathsStarters Bingo:

Converting fractions, decimals and percentages

This game focusses on the conversion between the common fractions and their equivalents decimals and percentages. The game is limited to fractions with a denominator of 2, 3, 4, 5, 8 and 10.

Screenshot of MathsStarters Bingo

If you're not sure how to use this Bingo game, have a look at this earlier post.

Christmas Tree line design

Tuesday, 15 December 2015 | 0 Comments

Christmas Tree Line Design preview


There are some other line designs here.

Continue to all entries from December 2015

See the Archives for more…

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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
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