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| Casio fx-85 series calculators show the answer as a fraction. to change the default display ... SHIFT+MODE ? 1:MthIO ? 2:LineO should do it. |
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| Trignometry | link | Nice to show where the values of sine and cos come from, in either degress or radians. From pHet | 4 Star |
| Maths in Nature | |||
| Is Math a Feature of the Universe or a Feature of Human Creation? | YouTube. 9 mins. | 4 Star | |
| The Fibonacci Sequence in plants | YouTube. 3 mins. SciShow | 5 Star | |
| Similar | YouTube. 6 mins. ViHart | 5 Star | |
| Adding, subtracting, multiplying and dividing fractions | YouTube. 10 mins. Watch it over and over until you know it. | 5 Star | |
| Notation for solving algebra problems | From Mr Kendall's blog. Learn it! | 5 Star | |
| Calculus | |||
| The history of calculus - clouded in controversy | Link | YouTube. 8 mins. Poor sound quality | 3 Star |
| Instantaneous speed - shows how diffeentiation would work | Link | From surendranath.org | |
| Integration as area under a curve | Link | From surendranath.org | |
| A clever way to estimate enormous numbers | 5 Star | ||
| Silly ways of remembering scientific notation | 10^6 phones = 1 megaphone etc | ||
| Online best-fit line graph | Input data, see graph. Simple as. | 4 Star | |
| Online graphing calculator | From desmos.com | 5 Star | |
| A collection of free online calculators | Link | From goodcalculators.com | |
| The problem with zero | YouTube. 13 mins | 5 Star | |
| Equations that changed humanity | How many do you recognise? | 4 Star | |
| Statistics | |||
| Hans Rosling shows the best stats you've ever seen | YouTube. 5 mins | 5 Star | |
| Wonderful site for showing data on causes of death | From healthmetricsandevaluation.org | ||
| Constructions | With videos | ||
| Integration - nice simulation of the area under a curve | |||