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1  ~ 2014 sep 21teddy town homepageTeddy Town : nrich.maths.orgIn Teddy Town , teddies are either red or yellow and they live in red or yellow houses. There are 4 teddies - 2 red and 2 yellow, and 4 houses - 2 red and 2 yellow ... ‎Teddy Town - ‎Games - ‎Visualising - ‎Compare bears
1  +2 2014 sep 20maths tricksIs it Magic or Is it Maths ? : nrich. maths .orgHere are three ' tricks ' to amaze your friends. But the really clever trick is explaining to them why these ' tricks ' are maths not magic. Like all good magicians, you ...
1  ~ 2014 sep 18nrichHome Page : nrich .maths.orgThe Nrich Maths Project Cambridge,England. Mathematics resources for children ,parents and teachers to enrich learning. Problems,children's solutions
1  ~ 2014 sep 12living in the matrixLiving in the matrix ? | plus.maths.orgIt's something that most of us dread: to find out one day that we aren't real, that we are living in a computer simulation. Yet some people who ...
1  ~ 2014 sep 11plus magazinePlus MagazineWelcome to Plus magazine ! In the game of Nim one player always has a winning strategy — it depends on a weird way of adding binary numbers. Play to win ... ‎Articles - ‎Puzzles - ‎Packages - ‎Ebooks!
1  ~ 2014 sep 01in a gridShapes in a Grid : nrich.maths.orgCan you find which shapes you need to put into the grid to make the totals at the end of each row and the bottom of each column?
1  ~ 2014 aug 25gifted and talented mathsGifted and Talented - Nrich - Millennium Mathematics ProjectMaths in the Undergraduate Physical Sciences. Stage: 5. An article about the kind of maths a first year undergraduate in physics, engineering and other physical ...
1  +1 2014 aug 18tricks in maths
1  ~ 2014 jul 25math in game designThe Use of Mathematics in Computer Games : nrich. maths .orgAn account of how mathematics is used in computer games including ... The First Person Shooter (FPS) is a type of game where you run around 3D levels ... ‎Calculus generally - ‎Mathematical modelling - ‎Biology - ‎Vectors
1  ~ 2014 jul 24game design math
1  ~ 2014 jul 21math enrichment gamesHome Page : nrich. maths .orgMathematics resources for children,parents and teachers to enrich learning. Problems,children's solutions,interactivities, games ,articles,news.
1  ~ 2014 jul 20up down logoFirst Forward Into Logo 5: Pen Up , Pen Down : nrich.maths.orgLearn about Pen Up and Pen Down in Logo . ... Procedures allow you to save instructions in LOGO , creating primitives of your own, which you can use ...
1  +2 2014 jul 18mysteries of numbersMysterious number 6174 | plus.maths.orgAnyone can uncover the mystery . The number 6174 is a really mysterious number . At first glance, it might not seem so obvious. But as we are ...
2  -1 2014 oct 04math enrichment activitiesThe Nrich Maths Project Cambridge,England. Mathematics resources for children ,parents and teachers to enrich learning. Problems,children's ... More information on many of our other activities can be found here. Register for our mailing list.
2  -1 2014 sep 17nrichment drink per canOrange Drink : nrich .maths.org - Millennium Mathematics ProjectFirst I found out how much juice there is in each cup of drink . ... If you have a 750ml bottle of concentrated orange juice you can make 15 cups of juice. Each cup ...
2  ~ 2014 sep 11enrichHome Page : nrich.maths.orgThe Nrich Maths Project Cambridge,England. Mathematics resources for children ,parents and teachers to enrich learning. Problems,children's solutions ...
2  ~ 2014 sep 02a plus maths hilton'The Golden Section' | plus . maths .orgThe Golden Section. Hans Walser, trans. Peter Hilton . Mathematical Association of America 2001. The golden section (or golden ratio), ...
2  ~ 2014 aug 26best voting systemWhich voting system is best ? | plus.maths.orgWith the day of the referendum on the UK voting system drawing nearer, Tony ... The good folk of Chuddlehampton have to elect their village ...
2  +2 2014 aug 22java unfold geometryImaging maths - Unfolding polyhedra | plus.maths.orgNot only do paper models of geometric shapes decorate the ceilings of the .... Unfolding of Császár torus with JavaView's Unfolder applet.
2  ~ 2014 aug 21magic math tricksHere are three ' tricks ' to amaze your friends. But the really clever trick is explaining to them why these ' tricks ' are maths not magic . Like all good magicians, you ...
2  +1 2014 aug 19measurement of timeA Brief History of Time Measurement : nrich.maths.orgNoticing the regular movement of the Sun and the stars has led to a desire to measure time . This article for teachers and learners looks at the history of man's ...
2  ~ 2014 aug 11maths for lower secondaryWorking Systematically - Lower Secondary : nrich. maths .orgWorking Systematically - Lower Secondary . Scroll down to see our complete collection of problems that require you to work systematically, or explore the two ...
2  -1 2014 aug 09ladders with cubesLadder and Cube : nrich.maths.orgA 1 metre cube has one face on the ground and one face against a wall. A 4 metre ladder leans against the wall and just touches the cube . How high is the top of ...
2  +5 2014 aug 01magic numbers in mathematicsBut the really clever trick is explaining to them why these 'tricks' are maths not magic . Like all ... Try this with a different starting number . Did you ... Wow, Magic !
2  -1 2014 jul 20math jumping objectHigh Jumping : nrich. maths .orgHow can a high jumper jump higher without jumping higher? ... When an object has a bendy shape it is possible for its centre of gravity to lie outside of the body.
3  +3 2014 oct 02standing on head iconLast One Standing : nrich.maths.orgPeople with heads flip again. Do you think anyone will get 6 heads in a row? How many heads in a row do you expect the last one standing to have flipped?
3  ~ 2014 sep 30special numberSpecial Numbers : nrich.maths.orgMy two digit number is special because adding the sum of its digits to the product of its digits gives me my original number . What could my number be?
3  -1 2014 sep 22enrich golf9 Hole Light Golf : nrich.maths.orgThe NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a ...
3  ~ 2014 sep 17interactive pinboardMathematics Tools :: Pinboard /geoboard : nrich.maths.orgThere are 23 results. Broad Topics > Mathematics Tools > Pinboard /geoboard. problem icon · Nine-pin Triangles. Stage: 2 Challenge Level: Challenge Level:3.
3  ~ 2014 sep 07bowl of fruitA Bowl of Fruit : nrich.maths.orgCan you work out how many apples there are in this fruit bowl if you know what fraction there are?
3  ~ 2014 aug 30run your own lotteryRunning a lottery , for beginners | plus.maths.orgTo appreciate why Lottery formats are what they are, consider how you would design an ongoing Lottery from scratch. Your aim is to maximise ...
3  +35 2014 aug 27starting a local lottery
3  -1 2014 aug 22countdown numbers gameCountdown : nrich.maths.orgHere is a chance to play a version of the classic Countdown Game . ... contains the numbers 25, 50, 75, 100 and the bottom row contains numbers from 1 to 10.
3  +3 2014 aug 21the barber shave everyoneMathematical mysteries: The Barber's Paradox | plus.maths.orgI shave anyone who does not shave himself, and noone else. ... Just like the barber who shaves himself, but mustn't, and therefore doesn't, and ...
3  +1 2014 aug 17place your orderPlace Your Orders : nrich.maths.orgCan you rank these sets of quantities in order , from smallest to largest? Can you provide convincing evidence for your rankings?
3  +1 2014 aug 15odds and evensOdds and Evens : nrich.maths.orgIs this a fair game? How many ways are there of creating a fair game by adding odd and even numbers?
3  +18 2014 aug 15games around the worldGames from Around the World : nrich.maths.orgHere are a collection of games from around the world to try during the holidays or the last few weeks of term.
3  +2 2014 aug 15patterns in mathematicsPattern Power : nrich. maths .orgMathematics is the study of patterns . Studying pattern is an opportunity to observe, hypothesise, experiment, discover and create.
3  +2 2014 aug 13math magic tricks
3  +1 2014 aug 01proof by contradictionAn Introduction to Proof by Contradiction : nrich.maths.orgAn introduction to proof by contradiction , a powerful method of mathematical proof.
4  -1 2014 sep 24number baseLearn about Number Bases : nrich.maths.orgWe are accustomed to writing numbers in base ten, using the symbols for 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. For example, 75 means 7 tens and five units. However ...
4  ~ 2014 sep 20on a much easierMaths in a minute: Adding fractions (the easy way) | plus.maths.orgEasy ! Apparently this is how Vedic mathematicians in ancient India added up fractions. If you happen to ... Science is much stranger than fiction.
4  +1 2014 sep 18fibonacciThe life and numbers of Fibonacci | plus.maths.orgFibonacci is one of the most famous names in mathematics. This would come as a surprise to Leonardo Pisano, the mathematician we now ...
4  -1 2014 sep 18is god a mathematician' Is God a mathematician ?' | plus.maths.orgThe question of whether god is a mathematician refers to the apparently omnipotent powers of mathematics to describe the world we live in ...
4  +1 2014 sep 07difference between space and plusExotic spheres, or why 4-dimensional space is a crazy place | plus Of course we can continue this line of thought: 4-dimensional space , for a ... The difference between the circle and the line is that when viewed ...
4  +2 2014 sep 02printable sheet circlesInteractive and Printable Resources : nrich.maths.orgThis page is no longer up-to-date. Please select one of the following links to find our printable and interactive resources: General printable resources
4  +2 2014 aug 28learn to break codeThe Secret World of Codes and Code Breaking : nrich.maths.orgWhen you think of spies and secret agents, you probably wouldn't think of mathematics. Some of the most famous code breakers in history have been ...
4  ~ 2014 aug 23math challenge activitiesThe Nrich Maths Project Cambridge,England. Mathematics resources for children ,parents and teachers to enrich learning. Problems ,children's solutions ...
4  ~ 2014 aug 22math challenge activites
4  ~ 2014 aug 17logical thinking for kidsDeveloping Logical Thinking : the Place of Strategy Games : nrich This article outlines how strategy games can help children develop logical thinking , using examples from the NRICH website.
4  +1 2014 aug 16schrodinger wave equationSchrödinger's equation — what is it? | plus.maths.orgSchrödinger's equation is named after Erwin Schrödinger , 1887-1961. ... But in 1905 Einstein realised that the wave picture wasn't entirely ...
4  ~ 2014 aug 15get the balanceGetting the Balance : nrich.maths.orgIf you hang two weights on one side of this balance , in how many different ways can you hang three weights on the other side for it to be balanced ?
4  +2 2014 jul 30stop the clock gameStop the Clock : nrich.maths.orgThis is a game for two players. Can you find out how to be the first to get to 12 o' clock ?
4  +1 2014 jul 22wiki lehman brothersHow maths killed Lehman Brothers | plus.maths.orgThe housing market boom had turned Lehman Brothers from a modest ... "The largest bankruptcy in the US history," as described by Wikipedia .
4  -1 2014 jul 17two and twoTwo and Two : nrich.maths.orgHow many solutions can you find to this sum? Each of the different letters stands for a different number.
5  +1 2014 oct 03what is your numberYour Number Is... : nrich.maths.orgfollow the machine's instructions. I know what your number is ! Can you explain how I know?
5  -2 2014 sep 20topcoachTop Coach : nrich.maths.orgCarry out some time trials and gather some data to help you decide on the best training regime for your rowing crew.
5  +1 2014 sep 20magic squareMagic Squares : nrich.maths.orgA basic introduction to magic squares can be found here . Magic squares have intrigued people for thousands of years and in ancient times they were thought to  ...
5  -2 2014 sep 20a plus mathAbout Plus | plus . maths .orgWhat we do. Plus is an internet magazine which aims to introduce readers to the beauty and the practical applications of mathematics. A lot of people don't have ...
5  -2 2014 sep 20plusWelcome to Plus magazine! In the game of Nim one player always has a winning strategy — it depends on a weird way of adding binary numbers. Play to win ...
5  +1 2014 sep 19sundialsAnalemmatic sundials : How to build one and why they work | plus An analemmatic sundial is a particular kind of horizontal sundial in which the shadow-casting object is vertical, and is moved depending on the date, or to be ...
5  +4 2014 sep 10money mazeThe Money Maze : nrich.maths.orgGo through the maze , collecting and losing your money as you go. Which route gives you the highest return? And the lowest?
5  +8 2014 sep 09mathematics of compass bearingsCompass directions and bearings - Nrich - Millennium Mathematics Mathematics resources for children,parents and teachers to enrich learning. ... Topics > 2D Geometry, Shape and Space > Compass directions and bearings .
5  +1 2014 aug 29stop the clok
5  -2 2014 aug 23art of numbersThe art of numbers | plus.maths.orgIt's not unheard of for mathematicians and artists to look at each other with suspicion, and yet numerical relationships underly much form in art  ...
5  ~ 2014 aug 19other ways to multiplyMethod in Multiplying Madness? : nrich.maths.orgWatch our videos of multiplication methods that you may not have met before. Can you make sense ... If you had to work out $23 \times 21$ how would you do it ?
5  +3 2014 aug 10history of timeNoticing the regular movement of the Sun and the stars has led to a desire to measure time . This article for teachers and learners looks at the history of man's ...
5  +1 2014 aug 10sufficient but not necessarySufficient but Not Necessary : Two Eyes and Seki in Go : nrich.maths The game of go has a simple mechanism. This discussion of the principle of two eyes in go has shown that the game does not depend on equally clear-cut ...
5  ~ 2014 aug 09battery operated gyroscopeGalloping gyroscopes | plus.maths.orgIn the Department of Engineering at Cambridge University we have a few hand- held battery - powered gyros , as shown in figure 4, and they do really strange ...
5  +17 2014 jul 30audio software developersCareer interview: Audio software engineer | plus.maths.orgSkot McDonald is an audio software engineer, currently building software synthesisers for Fxpansion, a London-based company specialising in ...
5  ~ 2014 jul 29motivating maths studentsMotivate ... | motivate . maths .orgBetween 1999 and 2010 Motivate was one of the programmes run by the
5  -2 2014 jul 18the sweets boxSweets in a Box : nrich.maths.orgHow many different shaped boxes can you design for 36 sweets in one layer? Can you arrange the sweets so that no sweets of the same colour are next to each ...
6  +49 2014 sep 29morse code wireHistory of Morse : nrich.maths.orgThis short article gives an outline of the origins of Morse code and its inventor ... A telegraph receiver on the other end of the wire converted the impulses back ...
6  -2 2014 sep 26team workingDeveloping Good Team - working Skills : nrich.maths.orgThis article describes attributes of effective team work and links to 'Team Building' problems that can be used to develop learners' team working skills.
6  +8 2014 sep 22duality in artString Theory, Duality and Art - Millennium Mathematics ProjectString Theory, Duality and Art : how the Higgs boson and Turner Prize ... been recurrent themes in the work of both artist Grenville Davey and ...
6  ~ 2014 sep 22kiss n frogKissing the frog : A mathematician's guide to mating | plus.maths.orgIf there are $N$ frogs in the pond, you will kick back the first $M$ frogs, and then kiss the next frog that has a higher number than all those you have seen so far.
6  +1 2014 sep 20plus ebookEbooks ! Ebooks ! Read all about it! | plus .maths.orgWe are very excited to launch our very first ebooks ! These are collections of Plus articles on particular themes that have intrigued, challenged and entertained ...
6  +1 2014 sep 05data handling in mathsEnriching Data Handling : nrich. maths .orgData handling is one of the central activities in which real mathematicians engage: they are frequently analysing data that they have gathered in various contexts ...
6  ~ 2014 sep 03blink and playBlink and you'll miss it: The free kick in football (part I) | plus.maths.orgOn 12 June the World Cup kicks off in Brazil where 32 teams will compete for the greatest prize in football. A total of 64 games will be played up ...
6  +4 2014 sep 02how to use abacusAdding with the Abacus : nrich.maths.orgThe most common base is 10, but we still use base 60 when we tell the time: ... With calculators and computers, the use of the abacus has declined even more.
6  -1 2014 aug 28learning through gamesLearning Mathematics Through Games Series: 1. Why ... - NrichThis article supplies teachers with information that may be useful in better understanding the nature of games and their role in teaching and learning  ...
6  +1 2014 aug 26free will theoremJohn Conway – discovering free will (part I) | plus.maths.orgSimon Kochen and John Conway explaining their Free Will Theorem (photo: Princeton University, Office of Communications, Denise ...
6  ~ 2014 aug 25game theory footballGame Theory | Maths and SportIf your team scores first in a football match, how likely is it to win? And are maths and sportsmanship at odds on whether players should ever commit a ...
6  -4 2014 aug 23order in chaosFinding order in chaos | plus.maths.orgSo, does nature have any pattern and order beneath it? Despite the evidence of children (I have two!) the answer is essentially: "Yes". We will ...
6  +4 2014 aug 17round robin tournamentTournament Scheduling : nrich.maths.orgIn a Round Robin tournament every team plays every other team . There is a systematic approach to scheduling a Round Robin tournament . This method ...
6  -1 2014 aug 13number system for gamesNumbers and the Number System :: Place value : nrich.maths.orgFour of these clues are needed to find the chosen number on this grid and four .... This is a game in which your counters move in a spiral round the snail's shell.
6  +10 2014 aug 07mini olympic torchThe Olympic Torch Tour : nrich.maths.orgThe plan is to cover towns and villages so that 95% of Britons will be within 10 miles of the torch relay. Imagine a mini - Olympic torch tour running between 4 ...
6  ~ 2014 jul 29a level maths syllanusA-level Core Mathematics Curriculum : nrich. maths .orgA-level mathematics is currently modular giving students a choice in the maths they study for their AS (1 year course) or A level (extending the AS). Modules are  ...
6  +5 2014 jul 22the magic plantMagic Plant : nrich.maths.orgOn Friday the magic plant was only 2 centimetres tall. Every day it doubled its height. How tall was it on Monday?
6  -4 2014 jul 21paper pinned to boardMathematics Tools :: Pinboard/geoboard : nrich.maths.orgNine- pin Triangles. Stage: 2 ... Can you make a right-angled triangle on this peg- board by joining up three points round the edge? ... Polygons drawn on square dotty paper have dots on their perimeter (p) and often internal (i) ones as well.
7  ~ 2014 sep 29escher angels and devilsMathematical mysteries: Strange Geometries | plus.maths.orgThe famous artist Escher was fascinated by geometry. In the picture below, he illustrates a flat geometry with interlocking angels and devils .
7  ~ 2014 sep 22why are we hereWhy are we here ? | plus.maths.orgDavid Sloan has a great response for someone asking him what he does for a living: "I calculate how likely it is that the Universe exists.
7  -3 2014 sep 20matching numbersMatching Numbers : nrich.maths.orgCan you find different ways of showing the same number ? Try this matching game and see!
7  +73 2014 sep 19solid shapeBuilding with Solid Shapes : nrich.maths.orgWe have a box of solid shapes . In it there are cubes, triangular prisms, cones, cuboids, cylinders and tetrahedrons. 6 shapes. Which of the buildings below ...
7  +21 2014 sep 06ambulances per secondDoppler detectives | plus.maths.orgmetres per second ), $\lambda$ is the wavelength and $f$ is the frequency. The wave radiates out from the ambulance in all directions, the ...
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