The math concept that I had the most trouble with is substitution. We used pictures and how we can use pictures to substitute. I had a lot of trouble with it because I wasn't used to using pictures to substitute. To substitute in Algebra, you just plug in what you are substituting. Doing this with pictures was harder. It took me a while to figure out how to do it visually with pictures and how to do it using Algebra. This concept was introduced to us on 12-14-12. What helped me understand; was practicing substitution more. Everything else in Algebra came pretty easy to me, and I had no problems. According to Mr.Erickson; this was the easy half of Algebra.
 
Pythagorean Theorem... What is Pythagorean Theorem? I actually do not know what Pythagorean Theorem is. Based on the quick research I just did, it means that in a right triangle; the right angle has 90 degrees, and the other two sides have a sum of 90 degrees. Another way to understand it is using the formula 2  + 2  = 2. If the first side is 3. Than it is 3^2. If the second is 4, that it is 4^2. So far we have 3^2 + 4^2. This means that the third side must be 5^2. Now we have 3^2+4^2=5^2. Simpler, this means 9+16=25. This is all I am able to understand, if there is more to this, please leave a comment because I am not exactly sure I know what Pythagorean Theorem is.
 
If it is 64^2 , then it would be 64 * 64. The first 64 is length, and the second 64 is height. If we work by centimeters, than it would be 64 centimeters high, and 64 centimeters over. This makes it squared. If you work backwards, it would be a square root. Root means origin. That means the origin of the squared number. If you square 64, it means you are multiplying 64 by 64. This gives us the number 4096. The square root of 4096 is 64. Squaring and finding square roots are the inverse of the other.