This week for Algebra we are working on a very complex project that requires critical thinking skills. It seems very easy , but it is not so easy. The project os to find how many pennies are in a box and then to find out how much it weighs. You have to figure this out by knowing what to do with the dimensions of the box and of the penny. Then after you figure out how many pennies there are, you have to find out how much the box weighs by using a mixture of pennies made before 1980 and after 1980. We have to show all of our work.
       With the answer, we have to write a written report explaining why we did each step and how we could have done the same problem in a different way. As you can see this is not an exact answer. It is an accurate and reasonable guess. It may be more or less to what you gave as an answer, but it has to be somewhat close. I hope I get the right amount that is good enough to be a good estimated guess. This does need time and work to figure the answer. This os our Pennies in the Box project!

Pi

3/11/2013

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       The Pi concept was created by the Greeks. The pie is used to get the circumference of a circle. In Greece pi is actually a letter. It is equal to 3.14159. Pi is an irrational number. That as a number it does not stop. It can also be used as a fraction. The fraction form is 22/7. Yet nobody knows what led the Greeks to create such a long number. This concept is sometimes used in Geometry or Trigonometry.The Greeks made Pi  about more than 1,000 years ago.
        Some of the Great Pyramids were created with the knowledge of Pi. Pi is also C/D. That means it is the circumference over the diameter. Pi now is used for many things. This concept is used by engineers,architects, and mathematicians. Pi has been used for many things today, but it is it still a mystery to everyone why the Greeks used the numbers they did and their patterns. I think that Pi is a very important concept to all of us, because it has helped us learn about history and mathematics.


 
      When you have the equation of a line there are many steps to graphing it. First you have to look at b, that is where you will start the line. For example, of the equation of my line is, y=-3x+27, you would start your line at 27. After that is done, look for the slope. The slope is the number and the x. That is called a term, because they are a group that can be added. The slope from our example is a negative 3x.
       Now you have to go down three and across 1 to make your line. You have to continue going down three and across one to complete that line. You can put little dots on those points to then graph your line. One you have all those little dots down, you can connect them to make a line. These are the steps to graphing a line.