Monday, May 15, 2006

Mackenzie's Growing Post

Question # 1. What is meant by the terms Rotation Symmetry and Reflection Symmetry ? How does this relate to pentominoes? Explain these terms so that anyone who reads your post understands what u mean. Rotation Symmetry is a symmetry that respects all rotations. Like say I have a piece a paper. No matter how many times i roatate it, it is still the exact same piece of pater.

Reflection Symmetry is like almost like a reflection of something in the mirror. For example: say if I took a piece of paper and folded it in half at the axis it will match up.

There are 12 diffrent types of pentominoes named after letters in the alaphabet because that is what they look like. When the pentominoes are rotated or reflected it does not count as a diffrent pentominoe.The reflection and rotation symmerty realate to pentominoes because you can rotate and reflect them.

Question # 2. Create a pattern. You must represent this pattern both pictorially(i.e. with a picture or a diagram) and with numbers. You must show the first 4 steps of your pattern.

Quwstion # 3. Describe in words what is occuring with your pattern and if ypur pattern has an ending or if it continues on idefinately. Make sure that your explaination is clear enough that the pearson reading your description could understand your pattern without seeing your diagram.

In my pattern one block is being added on to it every time. In the first pattern it starts off with 1 block then in the second pattern it adds on one more block to the side. In the third pattern it is adding on one more block to the side, also the same thing is happening with the fourth pattern. My pattern does not have an ending it goes on indefinately.

Question # 4. Create a T-chart that shows what is happening with your pattern. You must show the first 4 steps of your pattern with the T-chart.



At 9:29 p.m., Blogger Mr. Reece said...

great post mackenzie

At 1:49 p.m., Blogger Mr. Reece said...

Great job, your mark is 19/20

At 4:37 p.m., Blogger angelic72 said...

try making some of the pictures smaller. If the reader can't make it out, they can click on it and it'll enlarge.


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