THE BLOG IS ALMOST FINISHED!!!

THE BLOG IS GONNA END SOON! No more weekly posts... no more asking questions about math... because we don't have math anymore... :) and :(

Have fun this summer :) We'll miss everyonee!!!!!

Here Are Some Things to Think About.

Here's a good question:

The equation h = -16 t^2 +56t + 32 describes the height h, in feet, of a ball t seconds after it is thrown from the balcony of a building. Sketch the graph of the equation. Then use the equation and the graph to tell all you can about the situation. You can write a paragraph but you may also use math notation.

Make sure you know the compound interest formula.

Looking for a Hint?

Try these out.

1. Where does the graph of -7y + 21x + 14 = 0 cross the y-axis?
2. A company makes cement using a water to cement ratio of 11 to 20. How many parts of water should be added to 300 parts of cement?

Good luck!

Is it Over Yet?

You have done a fine job this year, i.e. those who have worked hard on their homework and participated in class. I have enjoyed reading all your blog comments but it is soon coming to an end. Did I hear a sigh of relief?

I have posted the Ch 9 Cumulative on the 7-8 Math Page.The answers are also posted. Although we only touched on discriminant, I feel confidant that many of you can answer question 1.

The exam will be cumulative. There will be between 40 and 50 questions. Stay tuned for hints.

Graphs of Quadratic Functions

Today in class, we corrected Lesson 9-2, Covering the Ideas and completed Applying. We went on to Lesson 9-3. If you work through the two activities and pay very close attention to SVU and the x- and y- intercepts, you will be prepared for class on Wednesday.

Homework:
In addition to what is described above, complete Covering in Lesson 9-3.

Distance Formula

It's really the Pythagorean Theorem with more symbols. Memorize it now rather than later.

Homework:
Lesson 8-7, Applying
Lesson 8-8, Covering the Reading

Time for Glee!

Last Two Properties

You need to memorize all the properties and know how to apply them.

For those of you who left early today, the activity on pp. 483-484 needs to be well understood. You need to think about how the volume changed (more than doubled) even though the same size paper was used for the sides of the boxes. You also need to understand the formula for volume. If you need help with this, laurie, jdubb 32, lovebug9, and "the goose" can help you.


Homework:

Lesson 8-5, Covering the Ideas and Review, pp. 485-487.

More Properties

You've got two more properties to go and that will be a wrap on exponents. Then we'll look at square roots which are sometimes irrational numbers , sometimes rational, and sometimes imaginary.

Mandie may have set the quiz date. I'll have Lesson Masters for you tomorrow.

If you need a review of negative exponents, try this. If you want to review all the properties (they may vary slightly from your list), try this.

test day

I want the test on Thursday.

Exponents

So far, you should understand three properties of exponents. The LAX girls missed the third property but it is easy to understand if you got the first property.

Mandie, Miss Tan, and Goldielocks: Look at this website. It will help you understand more complicated factoring.


Homework: Finish up 8.2 and try out the Covering the Ideas in 8-3. I am impressed with how quickly you are moving.

Acronyms

AFAIK there are many acronyms that have more than one meaning. What do you think the most common meaning for CPA is? The first person who comments gets one point. The person who finds a less common meaning gets two points tomorrow.

FYA look up an acronym (any length, letters only) that has a meaning that you think most of your classmates do not know. Write this acronym in a comment. You will get two extra points on tomorrow's quiz for finding an acronym to share. In case of duplicate acronyms, whoever comments first gets the points.

BTW, L8R is not a TLA.

BBL

Homework:

• Study for quiz.
• Complete 8-1, Covering the Ideas.

Sorry I Missed You

I had an emergency so really am sorry about missing class. I'm sure Mrs. P did a great job.

You should look at the links in the previous post. They are easy and fun to read and will extend your understanding of function. A function can be non numerical but needs to be very carefully defined.

Think about when you want a quiz on Lessons 7-1 through 7-3. Tuesday or Wednesday works for me.

Homework:

• All problems in Lesson 7-6 need to be completed.
• Work on LM7-2 and LM7-3 to prepare for the quiz.

Functions

I thought you all did a very nice job in class today. You really seem to get function notation and can tell domain and range for each function.

If you would like to review some functions that are not arithmetic, look here. If you would like to check how to use function notation, try this website. This website will give you another way to test a graph to see if it is a function. Have fun!

I would like you to comment on the websites

Homework:
Lesson 7-5 - finish all the questions.
Lesson 7-6, Covering the Ideas.

Chapter 6 Only Test

The test is only on Chapter 6 and you will not have to eyeball a line of fit. You will have the option of answering an extra credit question so be sure you have legitimate data from any year after 1989.

The cumulative practice test was to let you know how much algebra you know (or don't).

Linear Inequalities

Last lesson in Chapter 6! The test is Friday.

To earn extra points on the quiz, bring a year and time for the men's Ironman World Triathlon in Hawaii. Any year and time from 1990 on will count for extra credit. Be sure you get an accurate time. You should convert the time to minutes (round to the nearest whole minute). Be careful when searching the Internet so that you have accurate data.

How Many Forms Do You Know for Linear Equations?

Can you give an example for each?

A non-example of a post is: "I did my homework." You need to write something with more math in it or answer someone's question about homework or in-class work.

Homework:
Finish all of Lesson 6-8
Quiz on Wednesday, Lessons 6-4 through 6-6

Happy Birthday to Albert and Pi Day to All!

Have you googled today? What did you notice?

Is it just coincidence? Albert Einstein's birthday is today too!

Would you like to hear what the digits of pi translated to music sounds like? Listen to tubular bells. You might also like to try some art based on the digits of pi on the same site.

Who's eyeballed line is going to come closest to the line of best fit?

More Writing Equations for a Line

Today in class, we reviewed point-slope form for equations of lines. Tomorrow we will take a second look at writing equations for lines given two points.

Homework for Friday:

1. Lesson 6-5, Applying.
2. Pass in Algebra with Pizzazz, p. 155.

Homework for Monday:

1. Finish Lesson 6-6, all of it
2. Study for a quiz on Lessons 6-1 through 6-3...should be really easy.

Finish Up the Test Neatly!

You also need to complete Lesson 6-3, Covering. I am impressed with your understanding of slope.

Similarity and Ratio

You may find this game fun. It gets you thinking about fractions and how to make an object larger or smaller using a ratio. You also need to use fraction concepts to figure how to find a fraction btween one that is too small and a second one that is too large.

Homework:

• Lesson 5-10, finish up the rest of the questions.
• You will receive a take-home test tomorrow. It will be due on Friday.

Probability without Counting

Finish up the few problems in Lesson 5-7. Remember the extra credit problem.

I found a website about ice if you are interested.

Enjoy the Snow...some more!

How is everybody? I wonder what the probability that we would not have school all week was last Friday when we had school?

I am having problems uploading the answers that I scanned. You need to check the answers to the odds in the back of the book. Ill give you the evens from Lesson 5-6 as best as I can type them in.

Lesson 5-6, Covering, answers:
2a. 1,996,415; 2b. about 4.8%; 2c. about 0.488; 2d. 0.5; 2e. answers vary depending on your family.
4a. 25; 4b. 4%; 4c. 48%; 4d. 52%; 4e. complementary
6a. AB-; 6b. O+
8. 25%
10. always
12. You were born on a weekend.

Let me know if you have questions.


Homework for today, Thursday:
Finish Lesson 5-6, Applying and Review. I'll post the answers tonight or tomorrow morning.

Homework for Friday:
Read Lesson 5-7. Pay very close attention to the meaning of percentile.
Answer Covering and Review.

No School!

There will be no school this week so we are going to try to finish up most of Chapter 5. I will email you the answers to Monday's and Tuesday's homework. It may take a while so check your email.

Oh, no! More Snow!

Surprisingly enough, my street was plowed this afternoon. Mass Ave is a mess near Little Flower. The two lanes headed toward downtown D.C. are blocked by huge snow bank.

I do not think we'll be enjoying a wonderful algebra class on Wednesday based on tonight's forecast so stay tuned for more homework.

Do any of you have any questions so far? I'll post some answers tomorrow.

Enjoying the Snow?

I started to shovel my walk this morning. Rosie was no help!

Homework:

1. Lesson 5.5, finish up Review. This is for Monday.
   
2. Lesson 5-6, Covering.

Ask questions. I'll check back later. I'll also post the answers so you can check them. Show all work.

Has anyone in class lost power? I did but only for a short time in the middle of the night. A tree in my back yard fell over but fortunately only damaged a fence.

Enjoy the Snow!

By now you should be ready to check your homework from last night. The answers are on the 7-8 math page.

Today's assignment is Review, Lesson 5-4. There are only ten problems.

I will collect your signed Chapter 4 test and test corrections tomorrow. Those are worth two homework grades.

Some of you are interested in raising your midterm grades. You may complete the following assignment, and pass it in tomorrow for a quiz grade. Write out all your work on lined paper making sure you put the proper heading, i.e. name, date, class, on the upper right hand side and writing Optional Algebra Quiz under the heading.

Optional Algebra Quiz: pp. 320-323, # 10, 22, 24, 28, 32. You must show all work!

One last thing...You MUST comment that you are doing this assignment. I will not accept the optional quiz unless you post a comment telling me you are working on it. Any questions?

DIvide and Conquer

It should be easy. Be careful when you have powers of a variable, e.g. s cubed.

Homework

Lesson 2-2, #1 - 13.

About the Test....

There are six questions on the test that you will solve without a calculator. You may use a calculator on the other twelve.

There are two questions on the 7-8 math page that you may find interesting. If you choose to work on them, be sure to show all work or mention that you used your calculator.

Test Postponed

Your test will be Friday. I will stay after tomorrow (Thursday) to help you.

Solving Absolute Value Equations

I found a nice explanation on coolmath. You may want to read this before you start on your homework. At the bottom of the page, you can go to the next lesson. Solving inequalities is there. You need to look at a couple of next lessons.

Homework:

Lesson 4-9, Covering the Ideas.

When Will theTest Be?

You are at the end of the chapter. According to some comments posted tonight, the majority of you want the quiz on Friday. That's fine by me.

I think that the test should be next Tuesday or Wednesday, your choice.

Homework:

1. Finish all of Lesson 4-8.
2. Spend 35-40 minutes on the Chapter 4 Self-Test.

The End of Chapter 4

Inequalities require you to think about two inequalities at the same time. Read carefully and come to class with specific questions. Watch for the words and and or.

I'll check back around 8:30PM.

Homework: Lesson 4-9, Covering the Ideas.

I forgot to upload the answer keys...

Sorry about this. I was busy talking to all the grads.

Here are the answers for LM 4-1:(1) 205, (2) $1,500, (3) 16%, (4) 84.2, (5) 33.3...%(you should write the raised bar over the repentend, 3), (6) 300%, (7) 41, (8) $30, (9) 133. If you think there is a mistake somewhere, post a comment.

Of course, you all have finished all questions in Lesson 4.6 by now.

If there is a snow day tomorrow, the quiz will be Monday.

Solving Inequalities

Don't mix up properties of equalities with properties of inequalities.

Homework:

1. Lesson 4-5, Covering and Review.
2. Quiz, Lessons 4-1 through 4-3, on Friday.

Happy New Year!

It's great to be back and solving equations. You need to finish Lesson 4-4. Be sure you are writing and solving equations. You can check your work using your calculator.

You need to think about which day you want your quiz on lessons 4-1 through 4-3. Wednesday or Thursday?