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November 2011

November 21, 2011

Maths A Level Example: Polynomial Integral.....

Query:

Integrate with respect to x:  √x – 2/x3

Response:

 Maths A Level worked example illustrating integration of a polynomial.

Posted at 08:55 in Age Range: 16+, Focus: Pure Maths | | Comments (0) | TrackBack (0)

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November 14, 2011

Maths GCSE Example: Leaves On The Line?

Query:

A train normally travels a journey of length 60 miles at a certain average speed.

One day, due to bad weather, the train’s average speed is reduced by 10 mph so that the journey takes 3 hours longer.

Find the train’s normal average speed in mph?

Response:

Maths GCSE Higher worked example illustrating techniques required at this level. The original question was submitted as a query to our maths help line. Solution prepared by David Hopkins. 

Posted at 09:51 in Age Range: 11-16, Focus: Algebra & Graphs, Focus: Numerical Computation, Numeracy, Phase: GCSE Higher | | Comments (0) | TrackBack (0)

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November 02, 2011

Maths GCSE Higher Example: Watch The Bubble Grow.....

Query:

The diameter of a sphere is increased by 5%. Find the percentage increase in the surface area of the sphere.

Response:

GCSE Maths worked example illustrating percentage increase.

Posted at 16:49 in Age Range: 11-16, Focus: Numerical Computation, Focus: Shape & Space, Phase: GCSE Higher | | Comments (0) | TrackBack (0)

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