PLHS - Maths

Archive Page 2

Maths Exams: The Results

Published by Euan Doidge August 8th, 2008 in Uncategorized. 0 Comments

Now that the exam results are through, the SQA have released their official marking instructions for all the maths exams set in 2008. All levels can be viewed/downloaded here. The Grade Boundaries for all subjects at all levels is also available here.

The poll in the sidebar has been updated to ask ‘what grade did you get?’, which should make an interesting comparison to the poll asked before the results were sent asking ‘what grade do you think you’ll get?’ (which can be seen below)

Beautiful - Elegant Mathematics?

Published by Mr.Stewart July 22nd, 2008 in Maths Fun!!. 5 Comments

How good is this?

Celebrating “Pi Approximation Day or Casual Pi Day”

Published by Mr.Stewart July 22nd, 2008 in Maths Fun!!. 1 Comment

Casual Pi Day

You may not have realised but July 22 is “Casual Pi Day”

You may remember that “Pi Day” is the 14th of March.

For more information visit this site

Maths Teaser: Gold Coins

Published by Euan Doidge June 3rd, 2008 in Maths Teaser. 3 Comments

All of the gold coins are identical, and of the same value.

If I divide the coins into two unequal numbers (or piles), then 32 times the difference between the two numbers equals the difference between the squares of the two numbers.

How many coins do I have? Remember, a reason for your answer please!

Higher Maths Exam

Published by Euan Doidge May 20th, 2008 in Uncategorized. 8 Comments

The Higher Maths exam took place today, and the exam papers are now available to view online here: higher2008exam

Paper 1:

Paper 2:

Use this space to discuss the exam, answers, solutions, worries if necessary etc.

Answers are now available thanks to Mr H of Invergordon Academy:

Paper 1: see here Paper 2: see here

Maths Teaser: Next three numbers…

Published by Euan Doidge April 29th, 2008 in Maths Teaser. 5 Comments

A trickier teaser for you all:

What are the next three numbers in this series? Again, a reason for your answer please!

4, 6, 12, 18, 30, 42, 60, 72, 102, 108

Maths Teaser: 1, 1, 1, 1…

Published by Euan Doidge April 15th, 2008 in Maths Teaser. 4 Comments

Another teaser for you all:

1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,?,1,1,1

What number should replace the ‘ ? ‘ ? (again, a reason for your answer please!)

Maths Teaser: The Father of Algebra

Published by Euan Doidge April 9th, 2008 in Maths Teaser. 5 Comments

No, it’s not Mr Stewart.

Diophantus was a Greek mathematician who lived in the third century. He was one of the first mathematicians to use algebraic symbols.

Most of what is known about Diophantus’s life comes from an algebraic riddle from around the early sixth century. Stated simply, it says:

Diophantus’s youth lasted one sixth of his life. He grew a beard after one twelfth more. After one seventh more of his life, he married. Five years later, he and his wife had a son. The son lived exactly one half as long as his father, and Diophantus died four years after his son.

My question is: How many years did Diophantus live? (show some working please!)