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## Chapter 2 Project Bricklayer's Formula December 2 2013-14 Tim Goudemont

In this project, I am comparing the bricklayers formula to a real brick wall to see if it is accurate for the bricklayers formula. I had to measure two sections of a brick wall and use the formula n=7LH. N is the number of bricks in the wall. The L means the length of the brick wall in feet, and H means the height of the brick wall in feet too.

Erik and me working on our presentation.

The first thing I did was to find a brick wall. I found a brick wall in AIS, and I started measuring. the first step that I had to do was to measure the height and the length of the brick wall in feet. The height was 5 feet and the length was 5 feet too. I used a meter stick to find out what the height and the length would be. When I was done measuring the height and length ( in feet) I started to count the number of bricks in the wall that I measured. There was 110 bricks in the wall that I measured.

When I got that answer I started to measure another part of the brick to help me get a better formula. I did what I did before. I started to measure height and length. The height was 5 feet, and the length was 4 feet. Then I counted the bricks in the brick wall that I measured. There was 94 bricks in the wall that I measured.

When I was done counting the two brick walls I wanted to get a good formula. So what I did was I multiplied 5 times 5. And the answer is 25. So what I am actually trying to do is trying to multiply 25 to 110. It doesn't have to be exactly 110, but I am trying to get is as close as possible to it. So I am beginning with 25 times 4 equals 100. it is really close but I am trying make it as close as possible. so now I am trying 4.5 times 25 equals 112.5!!! This is the closest you can get so the answer for this brick wall is 112.5. But we didn't find the formula yet.

I am doing the same thing but with brick wall 2. I want to get a good formula and the second brick wall will help me. So the first step that I did was I multiplied 4 feet by 5 feet. And the answer is 20 feet. Like what I said before I want to multiple 20 to get as close to as possible to 94. So I am going to start with 20 times 5 and that equals 100!! But I am going to try to get it as close as possible. So now I am going to try 4.5 times 20 equals 90!!! Wow that is really close to 94. But what I would have to do was find out which one is the closest to 94, but it is really obvious that 90 is closer than 80. I got the two answer's and I am now looking for a good formula.

So I got the two answers and I am trying to find a good formula. Here is my work how I got the formula:

My formula is N= 4.5 LH!!! I used 4.5 in bough of the brick walls. It is really fun making the observation because it can be always different answers. People have different answers. I really like this project because you go outside and do math. It might be hard to find a brick wall but luckily we had one in the AIS. I hope we can do some projects in class. Once you started the project it is really easy to find things out. This was my project 2.

This is my work measuring with the 2 brick walls: