problem Fibonacci Surprises Age 11 to 14 Challenge level Play around with the Fibonacci sequence and discover some surprising results!
problem Fibonacci Deduction Age 11 to 14 Challenge level Leonard writes down a sequence of numbers. Can you find a formula to predict the seventh number in his sequence?
problem Farey Fibonacci Age 16 to 18 Challenge level Investigate Farey sequences of ratios of Fibonacci numbers.
problem Building Gnomons Age 14 to 16 Challenge level Build gnomons that are related to the Fibonacci sequence and try to explain why this is possible.
problem Simple Train Journeys Age 5 to 11 Challenge level How many different journeys could you make if you were going to visit four stations in this network? How about if there were five stations? Can you predict the number of journeys for seven stations?
problem First Forward into Logo 11: Sequences Age 11 to 18 Challenge level This part introduces the use of Logo for number work. Learn how to use Logo to generate sequences of numbers.
problem Colour Building Age 11 to 14 Challenge level Using only the red and white rods, how many different ways are there to make up the other rods?
problem Plus or Minus Age 16 to 18 Challenge level Make and prove a conjecture about the value of the product of the Fibonacci numbers $F_{n+1}F_{n-1}$.
problem Pythagorean Fibs Age 16 to 18 Challenge level What have Fibonacci numbers got to do with Pythagorean triples?
problem Fibonacci Fashion Age 16 to 18 Challenge level What have Fibonacci numbers to do with solutions of the quadratic equation x^2 - x - 1 = 0 ?