bodmas ilt in maths Mystic rose investigation

Mystic rose investigation

6 point mystic rose with reversed colours 12 point mystic rose with reversed colours 18 point mystic rose with reversed colours

Each person shakes hands with every other person in the room. If there are 6 people then there are 15 handshakes. If there are 12 people in the room, there are 66 handshakes.

The Mystic Rose diagram lets you see how to find the formula N * (N-1) /2 that calucates these numbers. The resulting patterns are pleasing to the eye and encourage students to talk about symmetry and pattern. You can download an Excel spreadsheet that will draw rose patterns from 3 to 25 points.

Using with students

The spreadsheet

You can download a spreadsheet that will make drawing the roses up to 25 points easy. The spreadsheet contains a macro written in Visual Basic that does the drawing. See the code for the method.

One of my patterns - copy and paste into Paint Shop Pro and use the flood fill tool to colour in the spaces between the lines

Originally added on Friday, April 4, 03
in category: ilt in maths

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