Tutor profile: Caroline L.
Subject: Study Skills
I am asked often, how do I study for long periods of time, I get bored and I just quit. I don't know how to stay focused on material I don't necessarily find interesting.
I had the same problem myself, I usually crammed everything the night before, and it left me with little to no sleep. I made an important change and that was to study a little bit every night, I set aside a whole hour 8-9 pm everyday I set an alarm and went to the library and studied for an entire hour. So then all I had to do was review everything a few days before the test because most was already fresh in my mind. I don't recommend studying for long periods of time, I personally see a few hours a day as plenty, every day. It's very important not to cram or study for long periods of time at once because I have always noticed a decline in attention, motivation, and interest. I always study with flash cards, I make them on Quizlet, an online free website where you can make flash cards and share with friends! I find flash cards very helpful because I can see that I know the answer by quizzing myself, I am confident then when I get to the test I will remember the answer, I can aslo evaluate my progress, Another very effective study skill is to make a group of friends in class, and quiz each other, compare notes, ask questions, and you will probably have fun while doing it!
I would argue that the heart is the hardest working organ in the human body. It never stops to rest, as long as you are alive. My question to you is how is blood pumped through the heart, and is it really just a big muscle?
The heart consists upper chambers, and lower chambers. The two upper ones are called the left and right atria, and the bottom two are called the left and right ventricles. Simple enough, but you must remember when labeling, left and right are opposite. First the used (unoxegenated) blood enters the right atrium, while this is happening the right atrium is being filled with oxygenated blood (from the lungs). The atria are the upper chambers, so this is where the ventricles, the lower chambers, come in. The blood is flowing from atria into ventricles, this happens because the atria contract and squeeze so the blood is physically forced to move down. I am sure you are wondering, how is blood oxygenated? Well, the right ventricles sends the blood to the lungs, it is a complex process that I'd be happy to explain but for now I will focus on question. So the unoxygenated blood is sent to the lungs to be re-oxygenated and the left ventricle has the new oxygenated blood, sends the blood throughout the body through arteries. Yes, the heart is basicallly a very big muscle, it consists of layers of muscle tissue and uses the muscle to automatically beat 24/7.
Something that the students I tutor with continuously struggle with the most is factoring quadratic expressions. The easiest way to solve this is by grouping. So, I will mke the question -5x2 + 7x = -9
The basic formula for quadratic expressions typically follows this, Ax2 + Bx + C = 0 and this so step one is to get the formula into the form listed above. To do that we need to simply add 9 to the equation. -5x2 + 7x + 9 = 0. We were able to get that 9 to a positive simply by adding it, if it was positive we would've subtracted it. So now that we have it in the correct form we can use the quadratic formula. X = -b +\- square root b2-4ac / 2a, I apologize for the formula format, unfortunately I can't draw the square root. So, next step is to substitute the numbers In, a= -5, b = 7, c = 9. It is very important to make sure that if the number is negative or positive, that is vital in solving the equation, all you have to do is see if there is a - or + in front of a number. So if we fill these numbers in, we get x = -7 +\- square root 7^2 - 4 * -5 * 9 / 2 * -5 To put that all in the calculator you end up with -7 +\- square root 229 \ -10.
needs and Caroline will reply soon.