Welcome to H3 Maths

Blog Support for Growing Mathematicians

Author Archive

James

This user hasn't shared any biographical information

Another cartoon

July26
by posted under Uncategorized | tagged under , ,  |  Comments Off on Another cartoon

Mathematically Speaking – a series of podcasts

July22

In this series of engaging podcasts, Mathematically Speaking explores the language of Mathematics:

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Mathematically Speaking – a series of podcasts

The Mathematician from Madras, India

July16

My first impression of Madras was a modern, Indian city bustling with activity; a diverse gateway to the south and a hot and dusty place preparing for the rainy monsoon season. It as a place of old cars, farm carts carrying produce, and people busy in the pursuit of commerce. Woman were down at the […]

by posted under Uncategorized | tagged under , ,  |  Comments Off on The Mathematician from Madras, India

More Pi

July15

What is remarkable is that π occurs in a wide variety of mathematical settings and across all mathematical domains. It turns out that is the ratio of a circle’s area to the area of a square constructed on the circle’s radius. It is also the ratio of a sphere’s surface area to the area of […]

by posted under Uncategorized | tagged under  |  Comments Off on More Pi

Pi – Reimagined by Daniel Tammet

July3

Daniel Tammet’s first language is Numbers and he decided to learn the ‘poem’ of Pi. And he had the opportunity (at the age of 25) to recite Pi to an audience at Oxford University—for over 5 hours! Listen to Daniel as he tells us about a different pi from the one taught in classrooms. Every […]

by posted under Uncategorized | tagged under , ,  |  Comments Off on Pi – Reimagined by Daniel Tammet

Another Numbers Matter

June19

In the news, this time another “numbers matter” from STUFF: “Think of the last time you used a set of scales. Or purchased something that had been weighed or measured before being packaged. Perhaps you’ve taken some medication today. Or bought chia seeds at the supermarket. Put petrol in your car. Posted a parcel. Poured […]

by posted under Uncategorized | tagged under , , , ,  |  Comments Off on Another Numbers Matter

Numbers Matter

June13

Novak Djokovic started to realize what he had just achieved. This was the moment he won grand slam number 23, surpassing Rafael Nadal at the top of the men’s all-time list. In a golden era for the sport – stretching back to Roger Federer’s first grand slam title 20 years ago – Djokovic has now eclipsed those […]

by posted under Uncategorized | tagged under , , , ,  |  Comments Off on Numbers Matter

Rogue Waves

June5

What are rogue waves? Today, the monster wave of sailors’ nightmares has a formal scientific definition: a rogue wave is at least twice as high as recent waves around it. It can rise and disappear quickly out of a stormy sea, but it can come out of nowhere too – in calm waters. ANU theoretical physicist Professor […]

by posted under Uncategorized | tagged under , , , ,  |  Comments Off on Rogue Waves

Mathematics for Humanity – Math Making the World a Better Place

May20

Minhyong Kim rejects being called an optimist, but he sounds an awful lot like one. “If we take reality exactly as it is, I don’t think we have any real grounds for pessimism,” he said in a recent conversation. That outlook is behind Mathematics for Humanity, a program Kim recently started that aims to apply […]

by posted under Uncategorized | tagged under , ,  |  Comments Off on Mathematics for Humanity – Math Making the World a Better Place

A Stable Solar System? Not According to Latest Math

May20

In 2009, a pair of astronomers at the Paris Observatory announced a startling discovery. After building a detailed computational model of our solar system, they ran thousands of numerical simulations, projecting the motions of the planets billions of years into the future. In most of those simulations — which varied Mercury’s starting point over a […]

by posted under Uncategorized | tagged under , , , , ,  |  Comments Off on A Stable Solar System? Not According to Latest Math
« Older EntriesNewer 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