7th Grade School Project
 
     Blogging about math on Mondays did help me. When we write it, it's usually right after we learn it when it's fresh in my mind. After a while, I start to forget (due to my ADHD), so I use my older Math Monday blog posts as references when I'm struggling on homework or things like that.
     Around the bottom of this page are some examples of this kind of help. I do use posts to refresh my mind. Sure, searching it online would be easier, but most time they use big words, and as you may have noticed, I'm as bright as an eclipse. I can understand the way our teacher puts it, but in my own words is easier to understand. 
     A good site to use for checking answers (not finding answers) is Wolfram Alpha. They have everything! You can even search "Do you love me?" and it came up, "Yes, I love anyone who asks me questions." Creepy, but cool. There are a lot of sites you can use. You can even just type it in a search engine such as Google or Yahoo. I just find Wolfram Alpha easier because they even give examples and step-by-step directions to how to solve it on your own. I learn from there; it's almost better than learning in class! I highly encourage you to check it out. 
     Most websites are complicated, especially if you go on Google and type "Define ___." After searching that, my brain exploded! 
 
     There were some difficult subjects this semester. Of course it would get harder because teachers hate us. Kidding. Our brains are getting more complex, so we can handle more. The most difficult thing has to be finding the slope of a line on a graph. 
     Oh. My. God. HARDEST THING EVER!! I was so confused! There was no way I could understand it. It's like "Slope equals slope (rise over run). Then a variable. I don't know why there is a variable. Then add or subtract the y-intercept. I don't know how to determine the operation you're supposed to use! When in the world would we ever use this in real life?? Same thing with the Pythagorean Theorm. WHEN?! 
     I eventually overcame it (it was about time!). My dad helped me alot. Only my dad can do this stuff. He can dumb-it-down so I understand. He is GENIUS!! My mom hasn't been able to help me since fourth grade because we both have learning disorders, so it's really hard for us to understand and remember the material we worked on. My dad helped me solve it and we came up with a little face to use to remember called Mrs. Slope. It's hard to describe. It helped on the CST testing, though. 
 
     Science wouldn't be the same without math. When doing experiments, pretty much the whole thing depends on math. For example, in science a few weeks ago, we were using mirrors at different distances to show how we appear to be smaller when you are further away. We used meter sticks. We had one person stand 2 meters, then 4, then 6 away from the mirror. One of us recorded the height from the floor to the line drawn horizontally down the middle of the mirror and  someone held the mirror and moved it around so the line drawn appeared to be lined up with our toes. One of us recorded. 
     When we got back inside (we did the experiment outside; it was SO HOT!), we wrote down our measurements and then turned them into a decimal, then a ratio. The whole thing was fairly simple, but I was in bad shape that day, 
 
     Negative numbers are numbers less than zero. The thing I didn't understand when I was younger was that -1 is greater than -200. I thought, Isn't 200 greater than 1? Later, I realized by using number lines that the numbers go backwards until they reach zero. Then, they go in order like they should be. 
     An example of how we use negative numbers is in your bank account. A check will bounce if you already have no money in your account. Negative cash can be a problem. Even if it isn't your bank account. Most of us kids don't have credit cards. Some have a savings account to save for college funds, but not a real credit card like adults do. I have a prepaid card, but it's not the same. Us kids will probably have a more likely chance that we owe money to other people because they bought us something, you lost a bet, and many, many other reasons. 
 
     The equation above is quite simple to solve. It's pretty basic math. The main idea to this problem is to isolate the variable. In this case, the variable is "x". In other words, we need to get "x" by itself. 
     The first step is to add 7 to both sides. Why? To cancel out the 7 by adding 7 to a -7. That will make it 0. Because we're adding to both sides, you'll need to add 7 to 15; that gives you 22.
     The next step is to begin to isolate the variable. The new equation is 2x=22, just for clarification. Now, this is the easy part. You'll divide 2 by the 2 to the left of the variable. Do the same to the other side, and there you go! The variable equals
 
     To make a fraction into a decimal is more simple than vise versa. To change it, you simply divide the numerator to the denominator. 
     For example, if you have the fraction 1/3, you would divide 1 into 3, giving you .33 (repeating decimal). This is pretty much it, but because I need to type more, how about some more examples?
     Oh, also, you need to have the fraction in simplest form. So, you can't work with 9/18, you would work with 1/2. 1/2 is a simple decimal, and everyone knows that. It is .5 because 1 divided by 2 is .50, but you can drop the zero. All it does is hold up unnecessary space. Bad zero. Anyway, a third example...how about a more complex one? 70/83. You divide 70 into 83. This gives you 0.84.
 
     Lets say you're a restaurant owner and you're buying food for your business. Would it be better to use a percent or ratio to figure out how much you need to buy?
     Both are reasonable, but I think a ratio would be better. You would need a certain amount of food to make a certain amount of a finished dish. An example would be that you would need half a pound of ground beef and three small tortillas to make a dish for a customer. The ratio would be 0.5:3. 
     A percentage would be correct also. You can use a percent of your overall money to buy certain products. If you own a Mexican restaurant, you could spend 25% of your money on tortillas, 35% on rice, 10% on assorted meat, and 30% on condiments. This will add up to 100% of your spending money and keep your restaurant in order. 

 
     Pi is a never-ending decimal, but we sum it up to 3.14. On Thursday is Pi day, but it's also my mom's birthday. People celebrate with having pie. 
     Pi tells us things about circles, such as radius. You would multiply the number given by 3.14 to get your circumference of the circle. I still can't grasp the idea of how it works, but it does work. Pi is a very special number. Without it, how would we solve problems involving circles? Pi can be very helpful; In fact, we couldn't solve circle problems without it! Pi tells us the circumference of a circle (circumference is the distance around the outside of the circle). 
     
 
     Finding the equation for a line is not always easy. That was the part I struggled with, but the slope was just fine. 
     To find the equation of a line, you start at a point. Remember, rise over run. I remember which is which by: rise is going up and when we run, we run across the grass. Then you add the distance from the y-axis. This will now be your equation. 
     The Rise over run will be represented as a fraction. for example, if the rise is 5 and the run is 8, it will look like this: 5/8. Then, lets say that the _distance from the y-axis is 5. The finished equation will look like this: y=5/8+5. It's not very difficult when  you get the hang of it, but I obviously haven't.
 
    According to my research over the weekend, the price of a 12 pack of Mountain Dew is about $5.00 while a 1-liter (33.8 oz) is about $1.59. Of course, if you buy a 12 pack, you are also buying the packaging. That adds up. There's not very much of the Mountain Dew in every can. There is about 42% of a liter in each can. If you add it up, it turns out to be $5.04, so you save  4 cents. Not very much, is it?
    Buying the actual 1-liter bottle of Mountain Dew is a better deal. Unless you're on the move, you can easily use a drinking glass from home to drink it. Soda cans aren't always as sanitary as glasses from home. Some people even say they can taste the difference!

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