Auditorium Steps
What is the shape of wrapping paper that you would need to completely wrap this model?
Problem
Student Solutions
Zaynab from Parkhill Junior School wrote:
First of all I calculated how many squares there were of each colour.
Working out how many squares there were in the top part was the hardest as I had to make sure that I didn't overlap the squares.
In total there were:
Outer sides: 128 squares
Bottom: 64 squares
Top: 192 squares.
Within the top section, the colours were as follows:
Orange: 40
Green: 40
Purple: 64
I reduced the scale factor, and divided everything by 4. That way I could make a reasonably sized model. I drew it onto squared paper, then recreated it to make sure everything fit. I did this so that I could visualise it, as if I were really wrapping the auditorium.
Matthew from Dulwich College Suzhou in China sent in this picture:
Saksham from Hounslow Town Primary School sent in this picture:
Thank you for these good solutions that probably tested your visualising skills.
Teachers' Resources
Using NRICH Tasks Richly describes ways in which teachers and learners can work with NRICH tasks in the classroom.
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