60Secondary Teacher Big Button Pagehttp://nrich.maths.org/teacher-secondaryen 2012 http://nrich.maths.org/public/terms.phpNRICH 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 +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 +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 +0100Clone of Reasoning GeometricallyGeometrical reasoning can involve coordinate geometry and properties of 2d and 3d shapes, and may even lead to algebraic representations. These problems invite you to explore geometry in a variety of contexts.http://nrich.maths.org/9190Sat, 01 Mar 2014 00:00:01 +0000Kite 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 +0100Always a Multiple?Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...http://nrich.maths.org/7208Tue, 01 May 2012 00:00:01 +0100Dicey OperationsWho said that adding, subtracting, multiplying and dividing
couldn't be fun?http://nrich.maths.org/6606Tue, 01 Feb 2011 00:00:01 +0000Power CountdownIn this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.http://nrich.maths.org/6448Tue, 01 Feb 2011 00:00:01 +0000Power Mad!Powers of numbers behave in surprising ways. Take a look at some of these and try to explain why they are true.http://nrich.maths.org/6401Tue, 01 Feb 2011 00:00:01 +0000Geometry: 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 +0000Method in Multiplying Madness?Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?http://nrich.maths.org/5612Sat, 01 Oct 2011 00:00:01 +0100Route 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