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Posts tagged with sport

Dice Cricket – how will your team go?

July26

There are several variations of using dice to investigate chance and statistics. In this version, which works well in Junior High, students captain a cricket team and have a total of 11 players. Each player scores runs by rolling the die and using the number rolled to equal their runs. You can keep adding up […]

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Great Math Job for the Sporting Student

July1

Here is a great volunteer or work experience or Summer Intern position to get into – that of a Junior Math Match Stats Assistant. Why? You get to enjoy the game you love and you use your Mathematics to update the statistics as the game(s) progress. For example, here are some Match Stats from Wimbledon, […]

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Sailing by the numbers – America’s Cup Update II

October5

Following our earlier post is this update on how Mathematics gave the American boat the speed edge to win one of the most remarkable comebacks in sport: “Computer whiz Asim Khan oversaw Oracle Racing’s immense database, developing the hardware and software systems that fed “live” performance data to the crew and helped unlock the secrets […]

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Billiards and Pool – the Geometry of Motion

September28

The pool table is a great battlefield for training the mind to read angles, in order to sink the balls into the appropriate pocket. There is actually a very real geometry behind billiards and pool. My Dad was a skilful billiards player as well as a good mathematician and I am sure his math was […]

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America’s Cup by the Numbers

September25

The Formula 1 of yachting – the America’s Cup. Outstanding technology where the boats are now sailing over twice the speed of the wind. Also a victory as Oracle came from 1-8 wins behind to beat Team New Zealand 9-8. How did this ‘one of the greatest comebacks in sport’ happen? It was all down […]

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New Device measures fun!

April27

Who said that statistics were boring? Check this cool gadget out… “A rugged activity tracker that purports to ‘count fun’ (not calories) and measures movements unique to action sports like surf, skate, snow, moto, MTB, BMX, and the likes. It’s built to withstand snow, surf, dirt, and hard pavement knocks and is a modular device […]

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Practical Maths Modelling

November11

This nrich site (a star favourite in our blogroll) offers some excellent practical mathematical problem-solving with a sporting focus. These activities are based on maths normally encountered while studying at A-level in the UK (ages 16 to 18). These types of questions are really important for our growing mathematicians.

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100m Graph

August6

Bolt triumphs again in the 100m Olympic sprint, clocking an Olympic record 9.63s, – 0.05s outside his world record. Below is a graph of the 100m with extrapolation of expected times in the future. Click here for more analysis of the 100m. Activity: how fast was Bolt’s 100m in kms/hr or miles/hr? Answer in the Post Support […]

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Post Support

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)?]