60Primary Teacher big button pagehttp://nrich.maths.org/8697en 2012 http://nrich.maths.org/public/terms.phpUsing NRICH Solutions as a ResourceIn this article for primary teachers, we suggest ways in which children's solutions on the NRICH site can be used as a teaching resource in their own right.http://nrich.maths.org/12939Wed, 01 Dec 1999 00:00:01 +0000Hidden Gems: Tasks to Celebrate Our 20th BirthdayThis article for primary teachers outlines the reasons for us selecting the tasks in our Hidden Gems Feature.http://nrich.maths.org/12872Wed, 01 Dec 1999 00:00:01 +0000The Problem-solving ClassroomThis article for teachers outlines issues to consider when developing an environment in which problem solving can thrive and links to a range of related NRICH tasks.http://nrich.maths.org/12779Wed, 01 Dec 1999 00:00:01 +0000Always, Sometimes or Never? ShapeAre these statements always true, sometimes true or never true?http://nrich.maths.org/12673Wed, 01 Dec 1999 00:00:01 +0000Always, Sometimes or Never? KS1Are these statements relating to calculation and properties of shapes always true, sometimes true or never true?http://nrich.maths.org/12671Wed, 01 Dec 1999 00:00:01 +0000Approaching MidnightCan you beat the clock to the midnight hour?<a href="http://wild.maths.org/approaching-midnight"></a>http://nrich.maths.org/12440Wed, 01 Dec 1999 00:00:01 +0000Escape the VortexCan you always reach the exit first and escape the vortex?<a href="http://wild.maths.org/escape-vortex"></a>http://nrich.maths.org/12429Wed, 01 Dec 1999 00:00:01 +0000DropletsTry this slightly more challenging version of Driplets and see if you can find a winning strategy.<a href="http://wild.maths.org/droplets"></a>http://nrich.maths.org/12428Wed, 01 Dec 1999 00:00:01 +0000DripletsThis game follows on from Last Bead. Can you find a way to take the last drip or drips?<a href="http://wild.maths.org/driplets"></a>http://nrich.maths.org/12427Wed, 01 Dec 1999 00:00:01 +0000Last BeadTake turns to remove a bead from the string. Can you find a way to play so that you will always win?<a href="http://wild.maths.org/last-bead"></a>http://nrich.maths.org/12426Wed, 01 Dec 1999 00:00:01 +0000Seven CountersCan you be the player to take the last counter?<a href="http://wild.maths.org/seven-counters"></a>http://nrich.maths.org/12424Wed, 01 Dec 1999 00:00:01 +0000Exploring FractionsThis article, written for primary teachers, links to rich tasks which will help develop the underlying concepts associated with fractions and offers some suggestions for models and images that help support ideas around fractions.http://nrich.maths.org/10496Fri, 01 Nov 2013 00:00:01 +0000Exploring Number Patterns You MakeExplore Alex's number plumber. What questions would you like to ask? What do you think is happening to the numbers?http://nrich.maths.org/8387Tue, 01 Feb 2011 00:00:01 +0000Low Threshold High Ceiling Resources for Primary Teachershttp://nrich.maths.org/8174Wed, 01 Aug 2012 00:00:01 +0100That Number Square!Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?http://nrich.maths.org/8169Tue, 01 May 2012 00:00:01 +0100Using Low Threshold High Ceiling TasksThis article explores what LTHC tasks are and why they are a firm favourite here at NRICH. We recommend that you start by reading the article to understand what makes a task LTHC and then delve into some of the activities we have selected.http://nrich.maths.org/7701Fri, 01 Jul 2011 00:00:01 +0100Poly Plug RectanglesThe computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?http://nrich.maths.org/7511Wed, 01 Jun 2011 00:00:01 +0100Magic VsCan you put the numbers 1-5 in the V shape so that both 'arms' have the same total?http://nrich.maths.org/6274Tue, 01 Feb 2011 00:00:01 +0000Animated TrianglesWatch this "Notes on a Triangle" film. Can you recreate parts of the film using cut-out triangles?http://nrich.maths.org/5968Tue, 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 +0100Sort the StreetSort the houses in my street into different groups. Can you do it in any other ways?http://nrich.maths.org/5157Tue, 01 Feb 2011 00:00:01 +0000Number DifferencesPlace the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?http://nrich.maths.org/2790Tue, 01 Feb 2011 00:00:01 +0000Up and Down StaircasesOne block is needed to make an up-and-down staircase, with one step up and one step down. How many blocks would be needed to build an up-and-down staircase with 5 steps up and 5 steps down?http://nrich.maths.org/2283Tue, 01 Feb 2011 00:00:01 +0000NoahNoah saw 12 legs walk by into the Ark. How many creatures did he see?http://nrich.maths.org/136Tue, 01 Feb 2011 00:00:01 +0000Ice CreamYou cannot choose a selection of ice cream flavours that includes totally what someone has already chosen. Have a go and find all the different ways in which seven children can have ice cream.http://nrich.maths.org/77Tue, 01 Feb 2011 00:00:01 +0000WormsPlace this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?http://nrich.maths.org/40Tue, 01 Feb 2011 00:00:01 +0000