March 2011 - Page 5 of 9 - Math and Multimedia

Free Maths Videos at MathsMaster.org

March 20, 2011 GB Resources and Freebies

If you have enjoyed Salman Khan’s videos on Youtube, you may want to check out, MathsMaster.org. MathsMaster is a new website and its aim is also to provide free mathematics education through videos.

According to William Emeny, one of the authors and writer of Great Maths Teaching Ideas

The emphasis of the videos is on developing pupils’ understanding rather than just teaching them a method. Videos are deliberately not levelled and certainly don’t mention any fashionable edu-jargon. They focus solely on understanding and quality teaching and learning. That’s what I believe is important.

You can follow MathsMaster.org in Facebook and Twitter.

4 comments free math tutorial videos, free math videos

Store and publish online for free with Issuu

March 19, 2011 GB High School Mathematics

If you have used Google Docs and Scribd, another online storage that you should try is Issuu. Issuu is an online service that allows for realistic and customizable viewing of digitally uploaded material, such as portfolios, books, magazine issues, newspapers, and other print media. It integrates with social networking sites to promote uploaded material (Wikipedia).

To know more about Issuu, click the video below.

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Leave a comment free online storage, Google Docs, issuu online storage, Scribd

Equation of a line: The derivation of y = mx + b

March 18, 2011 GB High School Mathematics

We have discussed in context the origin (click here and here) of the linear equation $y = ax + b$ , where $a$ and $b$ are real numbers. We have also talked about the slope of a line and many of its properties. In this post, we will discuss the generalization of the equation of a line in the coordinate plane based on its slope and y-intercept.

We have learned that to get a slope of a line, we only need two points. We have also learned that given two points on a line, its slope is described as the rise (difference in the y-coordinates) over the run (difference in x-coordinates). Therefore, if we have two points with coordinates $(x_1,y_1)$ and $(x_2,y_2)$ , the slope $m$ is defined the formula

$m = \displaystyle\frac{y_2 - y_1}{x_2 - x_1}$ .

All the points on a vertical line have similar x-coordinates; therefore, the run ${x_2 - x_1}$ is equal to $0$ making $m$ undefined. From here, we can conclude a vertical line has no slope. » Read more

2 comments arithmetic sequence, arithmetic sequence equation, arithmetic sequence problems, equation of a line, graphing linear equation, linear equation, linear equation definition, linear equation example, linear function, linear function definition, linear function example, linear function graph, y = ax + b, y = mx + b

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