This proved an interesting challenge for those who took it up. Rory, in Year 1, a frequent contributor and keen mathematician, used Cheerios to represent the eggs in the nest. His mum says,
‘First of all Rory wrote down all of the odd numbers between 1 and 19 on a piece of paper to remind himself of these. He then started with the largest odd number counting out the number of Cheerios to represent this number. He then split the remaining pile of Cheerios into two groups of odd numbers in as many combinations as he could. He then continued reducing the larger number each time he had found as many combinations as he could in the remaining pile. Unfortunately we didn’t get to the stage where we could check that we’d got the maximum number of combinations possible as he started eating the Cheerios!’
Excellent Rory – what a great strategy. You approached this systematically. Here’s a snapshot of his ‘nests’ of eggs.
UPDATE: Frederique also used CHEERIOS!!!!! Here’s the maths which involved the skill of regrouping.
Fellow classmate, Aalim, used stones and set them out in the garden into groups to represent nests. What a great idea. Here is a glimpse of his thinking.
Max B, Year 4, took this one on too. He made a systematic list of possible combinations of eggs in the nest and later over a family dinner realised he had missed some! So Max went back and completed the final combinations. Look at his organisation of odd numbers. I think his method ensured he got them all! What tenacity – well done Max.
Teddy in Year 2 took this one on. Thank you Teddy. Here is his solution. Excellent work.
Max B, Year 4, and Mikayla, Year 6, tried this one out. Well done to you both. You recognised that sadly Ben could not play tennis. The pairs are:
Boys-Ali and Luke.
Girls – Zoe and Laura.
Alex, Year 5 and Jacob, Year 5 also got the right answer!