60Secondary Teacher Big Button Pagehttp://nrich.maths.org/teacher-secondaryen 2012 http://nrich.maths.org/public/terms.phpAngles in Three SquaresDrawing the right diagram can help you to prove a result about the angles in a line of squares.http://nrich.maths.org/11852Wed, 01 Dec 1999 00:00:01 +0000An Equilateral Triangular ProblemTake an equilateral triangle and cut it into smaller pieces. What can you do with them?http://nrich.maths.org/11501Wed, 01 Dec 1999 00:00:01 +0000Polygon PicturesCan you work out how these polygon pictures were drawn, and use that to figure out their angles?http://nrich.maths.org/11498Wed, 01 Dec 1999 00:00:01 +0000Star PolygonsDraw some stars and measure the angles at their points. Can you find and prove a result about their sum?http://nrich.maths.org/11456Wed, 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 +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 +0100Olympic MeasuresThese Olympic quantities have been jumbled up! Can you put them back together again?http://nrich.maths.org/8318Fri, 01 Jun 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 +0000Charting SuccessCan you make sense of the charts and diagrams that are created and used by sports competitors, trainers and statisticians?http://nrich.maths.org/7735Mon, 01 Aug 2011 00:00:01 +0100Olympic Records
Can you deduce which Olympic athletics events are represented by the graphs?
http://nrich.maths.org/7489Wed, 01 Jun 2011 00:00:01 +0100Who's the Best?Which countries have the most naturally athletic populations?http://nrich.maths.org/7367Wed, 01 Jun 2011 00:00:01 +0100Speed-time Problems at the OlympicsHave you ever wondered what it would be like to race against Usain Bolt?http://nrich.maths.org/7322Wed, 01 Jun 2011 00:00:01 +0100Medal MuddleCountries from across the world competed in a sports tournament. Can you devise an efficient strategy to work out the order in which they finished?http://nrich.maths.org/661Tue, 01 Feb 2011 00:00:01 +0000Counting FactorsIs there an efficient way to work out how many factors a large number has?http://nrich.maths.org/480Tue, 01 Feb 2011 00:00:01 +0000Latin NumbersCan you create a Latin Square from multiples of a six digit number?http://nrich.maths.org/434Tue, 01 Feb 2011 00:00:01 +0000Rationals Between...What fractions can you find between the square roots of 65 and 67?http://nrich.maths.org/344Tue, 01 Feb 2011 00:00:01 +0000Gift of GemsFour jewellers share their stock. Can you work out the relative values of their gems?http://nrich.maths.org/330Tue, 01 Feb 2011 00:00:01 +0000Building TetrahedraCan you make a tetrahedron whose faces all have the same perimeter?http://nrich.maths.org/272Tue, 01 Feb 2011 00:00:01 +0000Calendar CapersChoose any three by three square of dates on a calendar page...http://nrich.maths.org/85Tue, 01 Feb 2011 00:00:01 +0000