INPUT ARTICLE: Article: For things that grow, whether in height or weight, you can measure the rate of growth by finding the change in whatever quality you wish to measure, divided by the time. This formula can be expressed mathematically as: rate=ht{\displaystyle { ext{rate}}={
rac {\Delta h}{\Delta t}}} or wt{\displaystyle {
rac {\Delta w}{\Delta t}}} In these two examples, h{\displaystyle h} represents the height and w{\displaystyle w} represents weight. In both of these, t{\displaystyle t} is for the elapsed time. Some plants, like the Asian bamboo, grow very fast, with visible differences taking place within hours. For measuring something like the growth rate of a child, changes may not take place for months or a year or more. You need to select a time period that is relevant for what you are measuring. Suppose an elementary class plants bean seeds and begins measuring their growth as soon as the first sprout appears. A reasonable time measurement might be about a month, measured in days. Scientists raising an orphaned baby elephant wanted to measure its growth rate over the first 90 days of its life. Measuring a growth rate requires that you set some starting point and measure the size at that time. For the example of the students' bean plants, they chose the starting point to be the day that the first sprout appeared. The height at the point is set at 0 cm. For the baby elephant, veterinarians measured the elephant's weight the day it was born. Its initial weight on that day was 200 pounds. After the time elapses for your study, measure the height or weight of the object whose growth you are studying. For the bean plants, the average height of the students' plants on the 30th day was 24 inches tall. Because the plants began at a height of 0, the amount of growth was 24 inches. For the elephant, after the 90 day study period, the veterinarians measured its weight to be 400 pounds. Enter the data that you measured into the formula and perform the calculations to find the growth rate. For the students' bean example, the calculation will look like this: rate=24inches30days=0.8inchesday{\displaystyle { ext{rate}}={
rac {24{ ext{ inches}}}{30{ ext{ days}}}}=0.8{
rac { ext{ inches}}{ ext{ day}}}} For the elephant's growth rate, you must calculate the amount of change in the weight in the numerator as part of the calculation: rate=400200pounds90days{\displaystyle { ext{rate}}={
rac {400-200{ ext{ pounds}}}{90{ ext{ days}}}}} rate=200pounds90days{\displaystyle { ext{rate}}={
rac {200{ ext{ pounds}}}{90{ ext{ days}}}}} rate=2.22poundsday{\displaystyle { ext{rate}}=2.22{
rac { ext{pounds}}{ ext{day}}}}

SUMMARY: Understand the formula for measuring average growth rates. Decide how long you wish to measure the growth rate. Calculate the starting size. Measure the ending height or weight. Use the growth rate formula for either height or weight.

INPUT ARTICLE: Article: . There is a theory that different people learn better in different ways and that by exposing yourself more to the method that works best for you, you'll have an easier time studying. Now, there are studies which show that learning styles might not work, but many people feel like this does make a difference in their learning. You should feel free to experiment because as long as it works for you, that's all that matters. You can find a number of tests online that can help you figure out your learning style. Any one of them is about as reliable as any other and they may give lots of different results. The best route is to pay attention to how you feel and what things feel like they work for you. Have you ever noticed that you learn better by looking at charts or graphs? When you think back to lectures in class, do you remember what the Powerpoint slides looked like better than the actual words your teacher said? These might be indications that you're strongly drawn towards visual learning. Try to find ways to make the information you study into a visual representation, in order to help yourself remember it better. For example, try using different color highlighters and tabs to color code the important information in your textbook. Have you ever noticed that you have an easier time remembering what your teacher said, rather than what information was written in your textbook? Do you feel like you absorb information better when you listen to music while you study (sometimes even being able to recall the information simply by "replaying" the song in your head)? These might be indications that you're strongly drawn towards auditory learning. Try to find ways to make the information you study into an auditory representation, in order to help yourself remember it better. Try recording your lectures and playing them back while you drive or before or after you study. Have you ever noticed that you're happiest when working with your hands? Maybe you tap your foot or fidget with your hands while you're in class. These might be signs of a kinesthetic learner, or someone who learns best when they're physically moving. This learning style is more rare than the other two but important to work with if you have it. Try taking breaks to run around the block or get other brief exercise while you study. This may help you process the information better and keep you from getting too wound up.

SUMMARY:
Evaluate how you learn Work with a visual learning style. Adapt to an auditory learning style. Facilitate a physical learning style.