## Wednesday, May 17, 2006

### 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 you mean.

1. Rotation Symmetry- A movement of an object through turning it's figure around(1 degree-360 degrees) it's center point, giving no new shape. That is Rotation symmetry.

Relfectfion Symmetry- The result of flipping an object. Though it may look 'unique' it is still the same as the object, it was only flipped onto the other side creating a 'reflection'.

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

Question #3: Describe in words what is occuring with your pattern and if your pattern has an ending or if it continues on indefinately. Make sure that your explanation is clear enough that the person reading your description could understand your pattern without seeing your diagram.

3. My pattern begins with two blocks, both vertical, and placed under each under. As each step grows, two block get added underneath, making the vertical line larger. This pattern would be be able to continue on forever.

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.

[Pardon me for making this late. My internet hadn't worked on Monday. I understand that I cannot add to this post to earn the marks I could have.]

At 5/18/2006 12:32 PM,  Mr. Reece said...

Dragon Eye unfortunatly I am not sure who you are so I am unable to give you the marks that you have earned for your post.

Next post make sure that you answer the entire question. You did not talk about pentominoes and how refelction and rotation influenced your decision over if a pentominoe was unique.

At 5/18/2006 5:20 PM,  jay said...

mr. reece i think taylor is dragon's eye

At 5/20/2006 11:58 AM,  Mr. Reece said...

Great job with the growing post. Your mark is 18/20