Dear all,
The November edition of the NRICH website (www.nrich.maths.org) is now
online, where the mathematical theme is Probability. We hope that you will
discover the power of this month's interactive environment to simulate many
trials, therefore making the process of obtaining data more manageable.
The interactivity will help your pupils get a feel for the games being
played in Three Ball Line Up
(<http://nrich.maths.org/public/viewer.php?obj_id=2858>) and Two and One
(<http://nrich.maths.org/public/viewer.php?obj_id=2857>). For Odds or
Sixes? (<http://nrich.maths.org/public/viewer.php?obj_id=2859>) students
will be able to use the environment to mimic throwing a dice many times -
it might save some time and arm-ache! Perhaps your class will like the
challenge of Flippin' Discs
(<http://nrich.maths.org/public/viewer.php?obj_id=4304>) where they are
asked to find the probability of winning the game, or why not suggest that
they investigate which of the two activities in The Better Bet
(<http://nrich.maths.org/public/viewer.php?obj_id=4334>) they fancy their
chances on? In fact, the betting theme continues in other problems such as
Bet you a Million (<http://nrich.maths.org/public/viewer.php?obj_id=4336>).
Epidemic Modelling (<http://nrich.maths.org/public/viewer.php?obj_id=4489>)
allows pupils to become researchers, using mathematical modelling to
investigate the spread of different sorts of diseases. They can choose
different probabilities of catching the disease and of dying from it, and
also different incubation periods. They are encouraged to carry out
repeated trials, investigate the results and write a report which we might
publish on January's site. Although this investigation is at Stage 5, it
does not require formal knowledge of statistics, so do invite all your
students to try it out.
Make sure you leave them time to play our interactive version of the
classic Scissors, Paper, Rock game, too
(<http://nrich.maths.org/public/viewer.php?obj_id=1233>). On the website
you are able to alter the game slightly, making it different from the one
that you can play away from the computer, which means that your class'
mathematical reasoning will be tested even more!
With best wishes from The NRICH Team.
Liz Pumfrey
NRICH Primary Teacher Research Associate
University of Cambridge Centre for Mathematical Sciences
Wilberforce Road
Cambridge
CB3 0WA
01223 764246
www.nrich.maths.org
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