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Archive for April, 2020

Value of Zero to the Power of Zero?

April30

Eddie Woo takes his students on a cool math adventure with their calculators to find out the value of zero to the power of zero!

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Free resources for curious students from TKS

April16

Founded in 2016, The Knowledge Society (TKS) is a 10-month accelerator program for curious and ambitious teens between the ages of 13-17. Through project-based learning and real-world skill building, TKS trains young people to solve the world’s biggest problems using emerging technologies. TKS has trained more than 500 students across North America in areas such […]

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A Math Legend Passes Away

April15

This just in from CNN: “John H. Conway, a Princeton professor and internationally renowned mathematician who created one of the earliest computer games, has died at the age of 82.” Princeton, where Conway has worked as a professor since 1987, shared the news, and celebrated his achievements in mathematics along with his “unbounded curiosity and […]

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Favorite bedtime reading for mathematicians …

April15
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Is Math Discovered or Invented? Will this video help you decide?

April5

Is Mathematics the discovery of universal rules, or is Mathematics simply invented by curious minds? The following video is an excellent overview of this debate, but also useful as it includes some very (useful) mathematical concepts:

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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)?]

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