Welcome to H3 Maths

Blog Support for Growing Mathematicians

Archive for October, 2012

Big Data = Big Maths

October30

According to IBM we create 2.5 quintillion bytes of data every day – taking pictures, posting, texting, tweeting, typing up docs, making videos, sending GPS signals, swiping credit cards, etc. That is a HUGE amount of data and, as Google has shown us, the control and analysis of much of that data = economic benefit. […]

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Big Data = Big Maths

Get your lasers ready – Refraction Begins!

October29

Refraction is an online puzzle game for teaching fractions – aimed at Primary but suitable for Junior High. The game is not obviously a lesson in fractions, but requires knowledge of fractions to succeed. In Refraction, the player must partition lasers in order to power spaceships containing various animals who have gotten stuck in space, […]

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Get your lasers ready – Refraction Begins!

Maths in Action – Real Estate Commissions

October29

There is an area of mathematics where real estate salespeople are and must be math wizards. What is that area? Figuring out their commissions…It’s a simple enough problem, right? The commission on the sale of a house is usually six percent. Everybody knows that. But wait. There’s more. If the house was sold by someone […]

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Maths in Action – Real Estate Commissions

Measuring in Today’s World

October27

“In this increasingly global planet us citizens of the world need to be able to understand terms which are standard in the industry or place where they originated,” explains Will. “Knowing that there are approxinmately 25mm to the inch, 300mm to the foot, that a mile is 1600m, what a 15-inch laptop screen looks like, […]

by posted under Uncategorized | tagged under  |  Comments Off on Measuring in Today’s World

Maths is Australia’s Single Largest Ed Event!

October27

Since 1978 it has become the largest single event on the Australian Education Calendar, allowing students to attempt the same tasks, on the same day in about 40 countries. It has become a truly international event, with countries throughout the Pacific and South East Asia, and some from even further afield taking part. Over 400,000 […]

by posted under Uncategorized | tagged under ,  |  Comments Off on Maths is Australia’s Single Largest Ed Event!

Which USA Presidents needed Mathematics for Success?

October26

This is a really interesting, historical question. Find out the answer(s) here

by posted under Uncategorized | tagged under ,  |  Comments Off on Which USA Presidents needed Mathematics for Success?

The X Factor in Mathematics

October25

From TED Talks – a definitive explanation for why we use ‘x’ in Mathematics:

by posted under Uncategorized | tagged under , ,  |  Comments Off on The X Factor in Mathematics

Alex’s Adventures in Numberland

October25

Math is often called the universal language, and in his new math travelogue, author Alex Bellos takes readers on a journey not only through realms of numerical thought and theory, but around the world as well. His book is already a bestseller in the U.K., under the title Alex’s Adventures in Numberland. You traveled the world to investigate how […]

by posted under Uncategorized | tagged under ,  |  Comments Off on Alex’s Adventures in Numberland

The Fibonacci Furniture Item

October23

Hey, check out this latest mathematical fashion furniture, based on the Fibonacci Series: More info here

by posted under Uncategorized | tagged under , ,  |  Comments Off on The Fibonacci Furniture Item

Translate from English to Algebra

October23

Here are some common examples of translating from English into Algebra: Source website here

by posted under Uncategorized | tagged under , ,  |  Comments Off on Translate from English to Algebra
« Older Entries

Post Support

Largest number between o and 1 million which does not contain the ‘n’ is 88

 

Rotation SAT Problem: Answer: 4 (see: https://www.youtube.com/watch?v=FUHkTs-Ipfg)

 

Which number has its letters in alphabetical order? Answer: F O R T Y

Hidden Rabbit? Clue: check the trees

How long for the stadium to fill? 45 minutes.

Where are you? the North Pole

Prize Object Puzzle: If Sue does not know where the prize is in the first question, it can’t be under the square. She must have been told it is under another shape. Apply this same logic to Colin. It is then obvious that the prize cannot be under a yellow object. That helps Sue eliminate her yellow shapes. Got the idea?

Algebra Puzzle: Answer = 1

Popular Math Problems Answers: 1, 1

Number of tabs? According to Lifehacker, the ideal number of tabs you should have open is nine. Yes, a single digit. To some, this is like playing a piano and only using a fraction of the notes!

Worst Graph? Where to start. What a visual mess and even some of the lines merge and are impossible to follow. A graph is a visual display of data, with the goal to identify trends or patterns. This is a spider’s web of information which fails to show a clear pattern at all. Solution? Well, different colors would help, or why not group in two or three graphs where trends are similar?

Number of different nets to make a cube is eleven – see this link

Homework Puzzle; The total value of the counters is 486, so halve this to get 243. Now, arrange the counters to equal this amount twice.

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

Archives

H3 Viewers



Skip to toolbar