THE LINE
Enter the names of the players.
Player 1:
Player 2:
StartEach pair of dominoes on the line must have the same numbers on their touching sides.
0
0


Transum.orgThis web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available. Please contact me if you have any suggestions or questions. 
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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician? Comment recorded on the 11 January 'Starter of the Day' page by S Johnson, The King John School: "We recently had an afternoon on accelerated learning.This linked really well and prompted a discussion about learning styles and short term memory." Comment recorded on the 28 May 'Starter of the Day' page by L Smith, Colwyn Bay: "An absolutely brilliant resource. Only recently been discovered but is used daily with all my classes. It is particularly useful when things can be saved for further use. Thank you!" 
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Numeracy"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables." Secondary National Strategy, Mathematics at key stage 3 

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There are 385072 ways of arranging the numbers 1  18 in a circle so that the sum of each pair of adjacent numbers is prime. Here is one of the possible ways
1,6,5,2,3,10,9,8,11,12,17,14,15,16,7,4,13,18.
See Math Forum for a discussion of PrimeSum Circles.
See Bernardo Recamán’s Primes in a Circle Puzzle.
See Scallywags and Scoundrels for a puzzle requiring the numbers 1  12 to be arranged in a PrimeSum Circle.
See Square Pairs Game for a similar game involving square numbers.
See Square Pairs for the related lesson Starter.
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