Solutions to Alg Word Problems posted Dec 4th

Solutions to Dec 4th post of alg word problems....try working the problems before looking at the solutions.

Algebra Word Problems

This is a new algebra word problem worksheet, however more word problems can be found in my blogs the week of 6/5-6/12/2011 along with some notes comparing ratio and proportion solutions and algebraic solutions to some word problems. Solutions to those word problems can be found in blogs the week of 5/15-5/22/2011.Solutions to the problems below will be added within the week.
The problems below is an edited copy of my original post. Problem #9 originally had a perimeter for the rectangle that would not have resulted in whole number answers...the perimeter will now yield a whole number answer as I had originally intended.

GED Practice Test Queston....Link

http://www.acenet.edu/Content/NavigationMenu/ged/test/prep/Prepare_GED.htmhttp://

http://steckvaughnadult.hmhco.com/en/gedpractice.htm

Review Problems Solutions

REVIEW

Note to my class....this is a diagnostic review sheet to see what you already know well and what area(s) you may need help with before you take the GED...Do not use a calculator or ask for help...this review sheet should honestly reflect what you know and don't know if I am going to be able to help you pass the math portion of the GED...I am not looking for 100%, so don't worry about how well you are doing on this worksheet...this worksheet needs to be handed in ASAP and we will not immediately go over it in class.

SOLUTIONS TO LAST 3 WORKSHEETS

Exponents, Radicals, and Scientific Notation

Solving Percent Problems and Using Percents

Interger and order of operation worksheet solutions

Problem # 3 in order of operations corrected mistake originally posted.

Also added link to kahnacademy.org in my free math sites links section.

Review of Integers and Order of Operations

Welcome to our summer GED session. I asked two of my cats to put their heads together to help me make this session as productive, and hopefully as fun as possible. As you can see, my cats are brainstorming, but I have a feeling that they are not thinking about math, so I am working hard to put together a curriculum that will not only help my students pass the math portion of the GED but to also gain a solid foundation of math concepts that can be used to start a college program. Understanding concepts in math has a plus side to it...the more you understand concepts, the less you have to memorize.

I have posted the link to the Cobb County School District website where there is a link to the Cobb Adult Ed. website. You can find information about preregistering to take the GED and the dates and times it is offered, as well as what you need to bring with you to sign up to take the GED. The site also has the 2011 -2012 Student Calendar and a link to all the administrator and teacher blogs. You can click on the link to open up the blog. Of course, if you are reading this message, you have obviously figured out how to get here, and you can put it in your 'favorites folder' so you won't have to put in the web address each time. But if you are not on your own computer and have forgotten the address for this blog, you can Google 'Cobb County Schools', find their website and use the link there.

Review Problem Solutions posted 6/13

Word Problem Review for TABE

Don't forget.....TABE on Tues. June 14 at 6:00PM..Please be on time we can start promptly....Thanks

Viewing and Printing Posts

Nearly all my posts are jpg files. If the font is too small to read, you can make it larger by double clicking on it. To further enlarge the size, hold down the control key while pressing the + key until the file is the size you want it to be. To print a post, it is easiest to save it as a jpg file on the computer or a memory stick, and then when you want it to print, most printers will give you the options 'best fit to page' which may be too small to read easily or may fill up the entire page depending on the size of the file, or 'stretch to page' which stretches the post to fill up one entire page no matter what size the file is. Any other non-jpg file should be easy to read and print to a readable size.

Solutions to May 26 Ratio and Proportion Problems

Solutions to May 21st Algebra Word Problems

Ratio and Proportion Problems

1) If Rob makes three times as much money as Ray, and Roy makes $3 more than twice as much as Ray, what is the ratio of Rob’s earnings to Roy’s earnings if the earnings for all three total $21? Does that ratio change if the total earnings of the three are $42?

2) A bag contains 6 blue marbles, 2 red marbles, and 12 green marbles. What is the ratio of green marbles to blue marbles? What is the probability (express your answer as a %) of reaching into the bag without looking and pulling out a green marble if no other marbles have been removed.

3) If you can purchase 3 tomatoes for 89 cents, at this rate how many tomatoes can you buy with $50?

4) A statue in the park cast a twelve foot shadow. If a yardstick is placed next to the statue and it casts a shadow of 18 inches at the same time of day as the shadow of the statue is measured, how tall is the statue?

5) Three people share the grand prize in a raffle in a ratio of 1:3:4. If the person who receives the most money in this relationship gets $ $12,000,000 as his share, how much money does the person who receives the second most amount get? How much was the grand prize? Using the ratio above, how much would each person get if they shared a total of $64,000 in winnings?

6) A maintenance person uses a cleaning solution which consists of 3 quarts of concentrated cleaner added to 3 gallons of water. If he wants to make a solution of cleaner using 2 gallons of the concentrate, how much water should he add to the solution?

7) John can fold 3 boxes every 2 minutes. At this rate, if he starts at 11:15 AM and continues folding boxes nonstop until 1:45 PM, takes a 45 minute break before resuming folding boxes, what time can he stop working if he wants to fold a total of 375 boxes.

8) Jill wants to enlarge a photo that is 3” X 5” using a square sheet of photo paper that has an area of 225 square inches. How many times larger can she make the original photo with the same length to width ratio?

9) On a map, the scale shows that 1” represents 80 miles. If you are traveling at an average rate of 45 miles per hour between two cities that are 2.25 inches apart on the map, how long would your trip take?

10) There are 2 pints in a quart, and 4 quarts in a gallon. How many pints are there in 4.25 gallons?

11) What is the ratio of the area of a circle with an 8” radius to the radius of a circle with a 2” radius? You will need to know the equation for the area of a circle to work this problem.

Algebra Word Problems

Comparing Alg. solution to Ratio & Proportion solution

Revised Calendar for Spring Session

This is for my Tues.- Thurs. evening classes. TABE testing will be on Tues. June 14th; not on Tues. June 7th as I had indicated. I was looking at the calendar for the Spring session before it was revised due to the week we closed for snow we had in Jan. I was on schedule to finish reviewing for the TABE for the 7th, so we have an extra two days to review for the TABE and the GED. Sorry about the mistake on my part...I had actually put this revised calendar on my blog several weeks ago and forgot about the revision. Here is the revised calendar again:

Solving and Graphing Inequalities

Congruent Triangles

Solutions to Similar Triangles Problems

Similar Triangles practice problems

Previous blog with index of topics in my blogs

Review Material for TABE
On the right hand side of the blog, there is an index of my blogs...if you click on any week, a list of topics of my blogs appears underneath that date...some useful blogs to review follow:

wk of 12/06-12/13 cumulative review; fractions,
wk of 11/29-12/05 integer explantions of number line and integer operations
decimal place value and decimal operations.
wk of 8/22-8/29 strategies for solving word problems; reading scales
1/17-1/24 estimation in division problems
7/11-7/18 multiplication table; long division; order of operations
estimating mult and div.
3/21-3/28 condensed review material for both M and D level TABE
1/24-1/31 explantion and examble of GCF and LCM
2/28-3/7 measurement problems
1/31-2/7 fraction word problems...also in wk 8/1-8/8
3/14-3/21 geometry....identifying polygons, area, perimeter measurements
1/10-1/17 geometry....identifying angles..right angle, acute angle,
obtuse angle, degrees in triangles and other polygons.
3/28-4/4 algebra (on GED) graphing points and lines on a graph, slope,
cross product used to solve ratios
Posted by Bruce Cohen at 11:27 AM

http://www.youtube.com/user/khanacademy#p/p

The above link will take you to Kahn's free videos on various subjects, including several topics in math. Scroll through the list to find what you want.
I was told that if I went to www.kahnacademy.org that I would be able to access his free videos. When I went to that web address, it indeed said kahnacaedmy, however I saw no link to his free videos or anything to do with kahnacademy. Instead the page was filled with 'related searches' that directed you to education sites that wanted money for information. My browser said that it had blocked popups from this site so I enabled popups which only brought up a WalMart advertisement. So I Googled kahnacademy and found the above site on youtube that contained his free videos. You may have to copy the link and paste it in your address bar to access the free site...Good Luck.
Two videos on similar triangles can be found by clicking on geometry. I tried copying the above link and pasting it my address bar...and it worked...it took me to his free videos on youtube. You can also right-click on the address above and click on 'open link'.

Geometry and Algebra in Previous Posts

solving algebraic equations with one variable

IT'S A BLAST

I will be posting more equation solving problems in my next post...Thanks to aplusmath.com for combining two of my favorite things...math and blowing things up...imaginary things...

Spring Session 2011 Student Survey

Spring 2011 Class Overview

Spring Session 2011 Class Overview

The skill levels of students in the GED level math class vary. For this reason I will vary my instructional methods to fit the needs of various individuals. If several people need instruction on a certain subject, I will be presenting the material on the board and answering questions as they arise.

If you have questions that have not been answered to your satisfaction about the work I present on the board, I will try to help you individually or pair you up with someone in the class who has a good grasp of the subject and is willing to help you. If you know a subject well, explaining it to another student will not only help them, but it will also sharpen your own skills simply because you are having to organize your thoughts on the subject well enough to explain it to someone else.
I also encourage students to ‘brainstorm’ ideas on a subject in small groups. Usually there are few questions in the group that cannot be explained by at least one member of the group. It is also more fun to work in groups because it stimulates you to want to think and participate in the learning process.

There are several other sources available for students, including a Resource Center where you can read and check out instructional materials. The computer lab has several good math programs and access to the internet where there is a wealth of instructional material available. Ask me or/and Mr. Britt for the internet addresses to some of these sites.

I also have a math blog with explanations on nearly all of the math subjects you encounter on the GED. This blog also includes worksheets on many math subjects, as well as a solution page for the worksheets that explain how the problems are solved. You can ask questions or make comments after any page in the blog, and I will answer any questions as soon as possible. You will not immediately see your comment or question on my blog because I unfortunately have to moderate this process to keep less than reputable services from advertising on my site. As soon as I read a comment or question and see that it is a student and not an escort service, I will allow it to be posted on my blog. I also have an e-mail address for students to ask questions, make comments, or advise me that you will be absent from several classes due to unforeseen circumstances. If you know that you are going to miss 3 classes in a row or more than 5 classes during a 10 week session, please advise me or the office of the reason for your absence so you will not be dropped from our classes.
I encourage you to make it to as many classes as possible. I realize that as adult learners, you may have obligations that are necessary or more important than attending class on a particular day. During a 10 week session, we have at most about 30 hours of instructional time for math and 30 hours for Reading and Language Arts. (The Science and Social Studies sections of the GED are mainly reading skills and will be covered in that class.) The class you miss may be the class I taught and answered questions for 90 minutes on the subject that you are having the most problems understanding.

I am looking forward to our Spring Session. Please do not hesitate to ask questions or give me feedback on whether I am helping you hindering your learning process. I am open to any suggestions as to how I can modify or completely change my instructional style to best fit your learning style. Also, I will occasionally make a careless error like copying a problem down wrong. When I do, please correct me…I will be duly impressed that you are paying attention, and the only person I will be upset with is myself.

Do you know how to do calculations on the Casio fx260 solar calculator? Yes….No If you do not own this particular calculator, (The only calculator allowed on the Problem Solving section of the GED) I would strongly urge you to get one and get familiar with its use before testing…You are only given a brief explanation of how to use the calculator before taking the test…You have a better chance of scoring higher on the test if you are already familiar with this calculator’s functions. I will be describing the keyboard functions and demonstrating how to use this calculator during our class…Having your own calculator and practicing how to use it before the day of taking the GED will increase your confidence and decrease your anxiety. It can be purchased at almost any discount dept. store, office supply stores, and here at the GED center for about $10, and you never have to worry about buying batteries….all you need is light to power the solar batteries.

Graphing and Slope of a Straight Line