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Dear all, Welcome to the December edition of the NRICH site (nrich.maths.org). In December, April and August we have a smaller publication which means that the monthly problems have not changed, but don't worry, we do have several extras to offer. Our Advent Calendar (<http://nrich.maths.org/public/viewer.php?obj_id=4772>) contains a different mathematical game for each of the twenty four days in Advent. Click on the date every day in December for a new game which you can challenge pupils to play against each other. Mathematics is all around us - our picture puzzler, Circle Panes (<http://nrich.maths.org/public/viewer.php?obj_id=4773>), is good evidence of this. The window in this photograph is quite amazing. Can students estimate its size? Do they think it would have been difficult to build? Can they justify why or why not? There are two additional articles this month for those of you teaching at a higher level, one focusing on Proof by Contradiction (<http://nrich.maths.org/public/viewer.php?obj_id=4717>) and the other on Mathematical Induction (<http://nrich.maths.org/public/viewer.php?obj_id=4718>). Do read them yourself before drawing them to the attention of your students. This month also sees the publication of the first "Mathematics Trails" book written by members of NRICH and published by Cambridge University Press. The book is an organised set of problems designed to develop pupils' generalising skills and contains teachers' notes as well as solution guidance. More details will follow very soon - do keep an eye out on the NRICH website. Details of the partnership between CUP and the MMP can be found at <http://www.cambridge.org/uk/education/downloads/CUP-PR_nrichJC.pdf>. Members of NRICH have also produced a CD-ROM in conjunction with Virtual Image. The "Exploring Squares" CD-ROM contains a collection of 25 mathematical posters on the theme of squares. Each poster is presented with teachers' notes and a series of questions designed to generate discussions of mathematical concepts. The posters are ideal for lesson starters and will help to develop investigative and problem-solving skills. For further information and details of how to go about ordering a licence, see <http://www.virtualimage.co.uk/html/nrichsquares.htm>. Oh - and this is only by way of advanced warning - please take the time to update your Flash Player to the latest version 8 (<http://www.macromedia.com/shockwave/download/download.cgi?P1_Prod_Version =ShockwaveFlash>). The sooner you are ready the sooner we can start making even better mathematical environments. 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 _______________________________________________ To post to the list send an email to [log in to unmask] To unsubscribe send an email to [log in to unmask] with the message body UNSUBSCRIBE NRICH-SUPPORT or unsubscribe via the web at http://www.jiscmail.ac.uk/cgi-bin/wa.exe?REPORT&Z=3