Dear Martin,
Also for the benefit of people who don't know the game of cricket –
the rules have changed.
The Wikipedia page at http://en.wikipedia.org/wiki/Laws_of_cricket says:
The Marylebone Cricket Club is the framer of the Laws of Cricket, the
rules governing play of the game.
…
The Laws retain the Imperial units as they were originally specified,
but now also include metric conversions.
The metric conversions are interesting as they not only convert the
old measures but also round them sensibly. For example, the length of
a cricket pitch in the old rules was 22 yards. Assuming that these are
the metric yards of exactly 914.4 millimetres, then a direct
conversion would give a pitch length of exactly 20.1168 metres.
However, it seems that this has been sensibly rounded, in the Laws of
Cricket to 20 metres. I quote again from the wikipedia article:
Law 7: The pitch. The pitch is a rectangular area of the ground 22
yards (20 m) long and 10 ft (3.0 m) wide.
Cheers,
Pat Naughtin
Author of the ebook, Metrication Leaders Guide, that you can obtain
from http://metricationmatters.com/MetricationLeadersGuideInfo.html
PO Box 305 Belmont 3216,
Geelong, Australia
Phone: 61 3 5241 2008
Metric system consultant, writer, and speaker, Pat Naughtin, has
helped thousands of people and hundreds of companies upgrade to the
modern metric system smoothly, quickly, and so economically that they
now save thousands each year when buying, processing, or selling for
their businesses. Pat provides services and resources for many
different trades, crafts, and professions for commercial, industrial
and government metrication leaders in Asia, Europe, and in the USA.
Pat's clients include the Australian Government, Google, NASA, NIST,
and the metric associations of Canada, the UK, and the USA. See http://www.metricationmatters.com
for more metrication information, contact Pat at [email protected]
or to get the free 'Metrication matters' newsletter go to: http://www.metricationmatters.com/newsletter
to subscribe.
On 2009/09/09, at 07:17 , Martin Vlietstra wrote:
… I agree, but I have never seen “A cricket ball travels at 85 mph
for 22 yards. How long does it take to travel that distance”?
(For the benefit of American readers, the standard cricket pitch is
22 yards long).
From: [email protected] [mailto:[email protected]] On
Behalf Of Stephen Humphreys
Sent: 07 September 2009 23:26
To: U.S. Metric Association
Subject: [USMA:45762] RE: Mathematics improvement due to metrication
There are questions like 'a car travels at 70 mph for 10 miles.....'
- I've seen many like that. Also when teaching about conversions
I've seen questions asking for answers using 'either metric or
imperial'. Martin - in the past I've directed you to websites
showing such questions and confirmation about being curriculum based.
From: [email protected]
To: [email protected]; [email protected]
Subject: RE: [USMA:45750] RE: Mathematics improvement due to
metrication
Date: Mon, 7 Sep 2009 20:15:46 +0100
The UK curriculum only teaches children how to convert between
imperial and metric units (approximate conversions only). It does
not teach children how to manipulate imperial units. For example,
no child in the UK is taught how to solve the problem “Find the
average of 3lbs 6oz, 4lbs 2oz, 6lbs 15oz”. They are however taught
how to solve the problem “Find the average of 1.53kg, 1.88kg and
3.15kg”. They might even be taught how to use the “Average” button
on their calculators.
From: [email protected] [mailto:[email protected]] On
Behalf Of Stephen Humphreys
Sent: 06 September 2009 22:37
To: U.S. Metric Association
Subject: [USMA:45750] RE: Mathematics improvement due to metrication
I was at school in the 80's and at that time they had dropped
imperial from the curriculum completely (aside from Teacher/kids
talking casually using imperial terms, of course!)
Shortly after they made imperial part of the curriculum including
conversions to and from, usage, etc. In science classes the units
were and still are only metric though.
From: [email protected]
To: [email protected]
Subject: [USMA:45745] Mathematics improvement due to metrication
Date: Sun, 6 Sep 2009 14:58:23 +1000
Dear All,
The Telegraph at http://www.telegraph.co.uk/education/6138456/Maths-standards-no-better-than-mid-70s.html
and
the Daily Mail at http://www.dailymail.co.uk/news/article-1211345/Maths-skills-standing-thirty-years-GCSE-grades-soaring.html
have both reported that metrication has helped students in the UK
with decimals knowledge.
Here is the quote from The Telegraph:
It found secondary pupils were much more familiar with decimals than
they were 30 years ago. Researchers put this down to “cultural
changes” including metrication and the increased use of calculators
and computers.
Cheers,
Pat Naughtin
Author of the ebook, Metrication Leaders Guide, that you can obtain
from http://metricationmatters.com/MetricationLeadersGuideInfo.html
PO Box 305 Belmont 3216,
Geelong, Australia
Phone: 61 3 5241 2008
Metric system consultant, writer, and speaker, Pat Naughtin, has
helped thousands of people and hundreds of companies upgrade to the
modern metric system smoothly, quickly, and so economically that
they now save thousands each year when buying, processing, or
selling for their businesses. Pat provides services and resources
for many different trades, crafts, and professions for commercial,
industrial and government metrication leaders in Asia, Europe, and
in the USA. Pat's clients include the Australian Government, Google,
NASA, NIST, and the metric associations of Canada, the UK, and the
USA. See http://www.metricationmatters.com for more metrication
information, contact Pat at [email protected] or
to get the free 'Metrication matters' newsletter go to: http://www.metricationmatters.com/newsletter
to subscribe.
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