60Secondary Teacher Big Button Pagehttp://nrich.maths.org/teacher-secondaryen 2012 http://nrich.maths.org/public/terms.phpStarting Term the NRICH Wayhttp://nrich.maths.org/12069Wed, 01 Dec 1999 00:00:01 +0000NRICH Resources for Every OccasionThis article highlights NRICH tasks that can be used for a variety of purposes in the classroom.http://nrich.maths.org/11252Mon, 01 Sep 2014 00:00:01 +0100What Are Rich Tasks?What are rich tasks and why do they matter?http://nrich.maths.org/11249Mon, 01 Sep 2014 00:00:01 +0100Tilted Squares - Teaching Using Rich TasksWatch Charlie and Alison teaching a lesson and read about the teaching points they consider to be important.http://nrich.maths.org/11248Mon, 01 Sep 2014 00:00:01 +0100Puzzling Place ValueCan you explain what is going on in these puzzling number tricks?http://nrich.maths.org/11215Wed, 01 Apr 2015 00:00:01 +0100Teaching Secondary Mathematics Using NRICH ResourcesAn introduction to using secondary NRICH activities in the classroom.http://nrich.maths.org/11121Wed, 01 Oct 2014 00:00:01 +0100ReversalsWhere should you start, if you want to finish back where you started?http://nrich.maths.org/11118Mon, 01 Sep 2014 00:00:01 +0100Making a DifferenceHow many different differences can you make?http://nrich.maths.org/11012Wed, 01 Apr 2015 00:00:01 +0100Number ShacksCan you figure out how sequences of number shacks are generated?http://nrich.maths.org/11008Mon, 01 Sep 2014 00:00:01 +0100Dotty Grids in the ClassroomThis article suggests ways in which a dotty grid can be used in the classroom as an environment for rich explorationhttp://nrich.maths.org/10818Sat, 01 Mar 2014 00:00:01 +0000Estimating TimeHow well can you estimate 10 seconds? Investigate with our timing tool.http://nrich.maths.org/10629Sun, 01 Dec 2013 00:00:01 +0000What's the Weather Like?With access to weather station data, what interesting questions can you investigate?http://nrich.maths.org/10470Tue, 01 Oct 2013 00:00:01 +0100Perception Versus RealityInfographics are a powerful way of communicating statistical information. Can you come up with your own?http://nrich.maths.org/10466Tue, 01 Oct 2013 00:00:01 +0100Picturing the WorldHow can we make sense of national and global statistics involving very large numbers?http://nrich.maths.org/10464Tue, 01 Oct 2013 00:00:01 +0100Kite in a SquareCan you make sense of the three methods to work out the area of the kite in the square?http://nrich.maths.org/8301Wed, 01 Aug 2012 00:00:01 +0100What we think and why we think itThe Secondary Team's beliefs about teaching mathematics, and the ideas that have inspired us.http://nrich.maths.org/8068Thu, 01 Jan 2015 00:00:01 +0000What Numbers Can We Make?Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?http://nrich.maths.org/7405Tue, 01 Feb 2011 00:00:01 +0000Who's the Best?Which countries have the most naturally athletic populations?http://nrich.maths.org/7367Wed, 01 Jun 2011 00:00:01 +0100Geometry: A History from Practice to AbstractionThis article gives a brief history of the development of Geometry.http://nrich.maths.org/6352Tue, 01 Feb 2011 00:00:01 +0000Route to InfinityCan you describe this route to infinity? Where will the arrows take you next?http://nrich.maths.org/5469Tue, 01 Feb 2011 00:00:01 +0000Coordinate PatternsCharlie and Alison have been drawing patterns on coordinate grids. Can you picture where the patterns lead?http://nrich.maths.org/2292Tue, 01 Feb 2011 00:00:01 +0000Take Three from FiveCaroline and James pick sets of five numbers. Charlie chooses three of them that add together to make a multiple of three. Can they stop him?http://nrich.maths.org/1866Tue, 01 Feb 2011 00:00:01 +0000Cinema ProblemA cinema has 100 seats. Show how it is possible to sell exactly 100 tickets and take exactly £100 if the prices are £10 for adults, 50p for pensioners and 10p for children.http://nrich.maths.org/1864Tue, 01 Feb 2011 00:00:01 +0000Largest ProductWhich set of numbers that add to 10 have the largest product?http://nrich.maths.org/1785Tue, 01 Feb 2011 00:00:01 +00001 Step 2 StepLiam's house has a staircase with 12 steps. He can go down the steps one at a time or two at time. In how many different ways can Liam go down the 12 steps?http://nrich.maths.org/1019Tue, 01 Feb 2011 00:00:01 +0000Marbles in a BoxIn a three-dimensional version of noughts and crosses, how many winning lines can you make?http://nrich.maths.org/895Tue, 01 Feb 2011 00:00:01 +0000