Thursday, 03 April 2008 | 2 Comments
For many students, working with directed numbers (positive & negative numbers) requires the visual aid of using a number line.
So, I went looking for a large sized number line that I could put above my blackboard (yep, still using a blackboard). I couldn’t find one from any of the educational retailers. Fortunately I’m married to a graphic designer who created an approximately 2.5 m long × 11 cm high number line that goes from −12 to 12.
This PDF file has nine A4 pages which need to be trimmed and stuck together. For best results, it would be worth either laminating the sheets before connecting them together or sticking them onto some board.
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Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
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