Geometry Project

Now that we are finshing up our unit on gemetry and surface area, its project time. There are three projects that you can choose from. Each project is due by Friday, March 13th.

1. Create a poster 14" X 22" (1/2 the size of regular poster paper) about your favorite sport, hobby, or a career in which you are interested. The topic must be approved. There will be only one person per topic. The poster should be entitled: "GEOMETRY IS FUNDAMENTAL TO…" And should illustrate ten different geometric concepts and explanation of all the concepts.

2. Cereal Box Surface Area is a project in which you will create a rectangular prism from a cereal box and then use it to determine the surface area and volume of the box. You will also find the weight of the cereal and use it to determine weight to volume ratios. Finally, you will complete a quick mathematical scavenger hunt on your cereal box. The finished cereal box projects will later be displayed around the classroom.

3. Toilet Paper Geometry is a math project that will require you to find the surface area and volume of a roll of toilet paper. You will unwind the roll of toilet paper, place it into the form of one or more rectangles, and calculate the total surface area of the roll. Then determine how many rolls of toilet paper it would take to cover a basketball court, a football field, and a baseball diamond. You will also calculate the volume of the toilet paper in two different ways (by finding the volume of a cylinder and a rectangular prism) and compare the results.

Algebra in the Real World

It's movie time again!!! This time we are going to watch a movie on the order of operations and it can be applied to real life situations. I have noticed that many of you are having difficulty with the order of operations. Remember parenthesis, exponents, multiplication or divide then add or subtract.

Please watch the movie titled Order of Operations- Algebra in the Real World ( under required websites). After watching, please complete and bring to class the worksheet entitled Order of Operations- Algebra in the Real World worksheet ( under required websites)

Have fun :)

Revisiting the Moon

As discussed in class today, your assignment for this weekend is to watch the movie, Revisiting the Moon. It can be found under the required websites. After watching the movie, complete the worksheet, also under the required websites (Revisiting the Moon worksheet). Bring to class the completed worksheet by Monday. Have a good weekend :)

That's a wrap!!!

After finishing our unit on exponents, post to these four questions.

1. What have you learned that you did not know before?
2. How do you use exponents in your everyday life?
3. What did you really enjoy/dislike about this unit?
4. Are there any areas about exponents that you are still unsure/ confused about?

The Number Devil

From our reading in class today, The Number Devil, by Hans Magnus Enzensberger, answer the following questions.

1. How did the number devil teach Robert exponents?
2. How is this approach helpful to you
3. What are your experiences with math? In other words, are you similar to Robert, afraid of mathematical numbers and language or do you enjoy the concepts of mathematics?
   

Exponents and Negative Numbers

Why do I get a negative answer even though the exponent is even and the other exponent is odd? Doesn't the exponent being odd or even determine if the answer is negative or positive?Here are two examples:
−(3/2)2 = −2 1/4.
−(3/2)3 = −3 3/8.


Why do you think this is????

More practice with exponents

Now that we have had some fun with exponents, lets see what you have learned

Directions:
Using the attached website, practice the basic laws of exponents. Write down the correct answer and bring it back to class by Friday for a quiz grade. Good luck :)
http://www.classzone.com/books/math_shared/math3/eTutorial/site/randomproblems.htm?chapter=4§ion=6&type=S-SEC

A little practice with exponents....

The laws of exponents can be a very confusing topic. Now that we have finished discussing the laws of exponents and how to add, multiple and divide numerical expressions with exponents,now it's your turn.....

1. Come up with three example of exponential equations and solve them.
2. Check your classmates work to make sure it was correct.

Here is a website on the basics of the laws of exponents
http://www.mathwarehouse.com/algebra/exponents/laws-of-exponents.php

Brain Teaser

Just to "flex your algebra muscles" a bit; it's not too hard:

Raju is 19 years younger than Ram. After 5 years, their ages will be in the ratio of 2:3. Find their present ages