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Excel interactive resource: number grid functions
Use Excel to investigate the effect of translations around a number
grid.
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problem
Sextet
16 to 18
Investigate x to the power n plus 1 over x to the power n when x
plus 1 over x equals 1.
problem
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Shaping it
5 to 11
These pictures were made by starting with a square, finding the half-way point on each side and joining those points up. You could investigate your own starting shape.
problem
Square pair
14 to 18
Explore the shape of a square after it is transformed by the action of a matrix.
problem
Favourite
National flags
7 to 11
This problem explores the shapes and symmetries in some national flags.
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Excel interactive resource: make a copy
Investigate factors and multiples using this interactive Excel
spreadsheet. Use the increment buttons for experimentation and
feedback.
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Excel interactive resource: interactive division
Use an Excel to investigate division. Explore the relationships
between the process elements using an interactive spreadsheet.
problem
Dalmatians
14 to 18
Investigate the sequences obtained by starting with any positive 2
digit number (10a+b) and repeatedly using the rule 10a+b maps to
10b-a to get the next number in the sequence.
problem
Polygonals
7 to 11
Polygonal numbers are those that are arranged in shapes as they enlarge. Explore the polygonal numbers drawn here.