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Prompt Cards
These two group activities use mathematical reasoning - one is numerical, one geometric.
Consecutive Numbers
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Exploring Wild & Wonderful Number Patterns
EWWNP means Exploring Wild and Wonderful Number Patterns Created by Yourself! Investigate what happens if we create number patterns using some simple rules.
Age 5 to 11
Challenge Level
Thomas from Beechwood Park School didn't stop at the blocks with J on them:
C=6
D=10
E=15
F=21
G=28
H=36
I=45
J=55
K=66
L=78
M=91
N=105
O=120
P=136
Q=153
R=171
S=190
T=210
U=231
V=253
W=276
X=300
Y=325
Z=351
Chloe and Georgia from Moorgate CP School, and Matt from St Andrew's School also calculated carefully.
Class 5 from Spring Grove Primary School in Hounslow told us:
These numbers are called triangle numbers because you would be able to arrange the number of blocks into a triangle formation. It would also work if they were counters as well.
That's right! Thank you.
NRICH is part of the family of activities in the Millennium Mathematics Project.