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Zios and Zepts
7 to 11
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?
article
Drawing doodles and naming knots
This article for students introduces the idea of naming knots using numbers. You'll need some paper and something to write with handy!
article
Multiplication series: number arrays
This article for teachers describes how number arrays can be a useful representation for many number concepts.
eyfs_activity
Using books: The Doorbell Rang
In this activity, the book 'The Doorbell Rang' by Pat Hutchins provides an engaging context in which children can explore sharing.
problem
Lost books
7 to 11
While we were sorting some papers we found 3 strange sheets which
seemed to come from small books but there were page numbers at the
foot of each page. Did the pages come from the same book?
problem
Janusz asked
16 to 18
In y = ax +b when are a, -b/a, b in arithmetic progression. The
polynomial y = ax^2 + bx + c has roots r1 and r2. Can a, r1, b, r2
and c be in arithmetic progression?
problem
Fibonacci factors
16 to 18
For which values of n is the Fibonacci number fn even? Which
Fibonnaci numbers are divisible by 3?