Week 6 Practice Problems

1. -10.08 + 3 =
2. 4 - 12.11 =
3. 34.62 + (-26.58)
4. Write 334,000 in Scientific Notation
5. What is the square root of 400?
6. 5/7 + 3/4 =
7. 7/8 - 1/4 =
8. -11/16 + 1/2 =
9. What are 2 key words we find in word
    problems often and what do they usually mean?
10. What must you find in order to add
      UNLIKE fractions?

Week in Review 9/24/10

What we did this week:

We learned the rules for multiplying and dividing integers first. The rules are this:
-When multiplying or dividing 2 numbers with different signs, the answer will always be negative.
-When multiplying or dividing 2 numbers with the same sign, the answer will always be positive.
So for example:
-10 x 4 = - 40
-6 x -9 = 54
It is important to not get these rules confused with the addition/subtraction rules. On Tuesday you created a foldable to help you learn these rules.
The addition rules are as follows:
-When adding 2 numbers with different signs, subtract the numbers (ignoring the sign), and then keep the sign of the larger number.
-When adding 2 numbers with the same sign, simply add the numbers (ignoring the sign), and keep the sign.
Example:
-5 + 8 = 3 (8-5 is 3 and 8 is bigger than 5 so the answer is positive)
-7 + -9 = -16 (9+7 is 16 and the sign is negative so the answer is also negative)

The subtraction rules go a little something like this:
-When subtracting 2 numbers you should remember this; KEEP, CHANGE, TAKE THE OPPOSITE.
You might also remember it like this; SAME, ADD, CHANGE (SAC).
Regardless what you are doing is changing the problem to an addition problem and then refer back to those rules to solve.
Example:
4 - (-7) = 11 (Same, add, change; 4 + 7 = 11)
7 - 17 = -10 (Keep, change, take the opposite; 7 + -17, subtract and keep sign of larger number; 17-7=10 and 17 is bigger than 7 so answer is negative.)

Students it is very important that you understand these rules and how to use them. If you practice these you will understand them.

On Friday we studied some word problems and identified key terms that help us work these word problems. You were then allowed to create your own word problem for an opportunity to see your problem on a benchmark as extra credit. I will collect these on Monday.

Report card grades will be due on Friday so make sure you have everything turned in. You should know before Friday if you are failing my class or even if you have below a 75. Let's get those grades up and remember to DO WORK AND STAY FOCUSED!

Ms. Ray

Week 5 Practice Problems 9/20/10

1. -20/4
2. -6 • -7
3. 9 • -5
4. Convert .375 to a fraction.
5. Write .00000345 in Scientific Notation
6. What 2 whole numbers is the square 
     root of 53 between?
7. What are the order of operations?
8. Order from greatest to least:
    45%, 1/2, .452, 3/8
9. What is an irrational number?
10. What extra-curriculars are you involved in?

Week in Review 9/17/10

It was so great to meet so many of your parents this week. Students keep up the great work in my classroom. Progress reports will go out in a little over 2 weeks so you need to be sure you are doing your best always.


Parents and students be aware that I will now be assigning after school detention to students that can not correct wrong behavior in my classroom. These will require a parent signature and if you fail to show up you will receive a referral.


Now for what we did in class this week:
Monday and Tuesday we reviewed and took our first CCA. Those of you who did not pass should be completing test corrections to turn in by Tuesday. This goes for the benchmark you took a couple of weeks ago as well. Test corrections must be on a separate sheet of paper and WORK MUST BE SHOWN! I will not give points back if there is no work shown.
Wednesday and Thursday we studied how to multiply and divide INTEGERS. Remember that INTEGERS are the set of whole numbers and their opposites. Some examples are: 5, -5, 10, -10, 3, 4, -200.
The rules for multiplying integers are this:
A negative times a positive is a negative.
A positive times a negative is a negative.
A negative times a negative is a positive.
A positive times a positive is a positive.
In other words, integers with the same sign when multiplied will be positive. Integers with different signs when multiplied will be negative.
My students created some really good handouts on this topic that I can not wait to display on my Brag Wall. I hope to do more jigsaw activities like this one. I think it is a great way for you to learn, by exploring ideas on your own and creating something from it.


Friday we worked on some word problems so that we continue to build on our problem solving skills. These are very important to have in life and will also be very useful on the TAKS test. Remember that math with words should not scare you, just take it slow and read the question carefully.


Hope you had a great weekend and are ready for more learning in and out of the classroom.


Ms. Ray

Answers to CCA Review 1

1. A
2. C
3. C
4. D
5. B
6. C
7. B
8. D
9. C
10. A
11. D
12. B
13. C
14. A
15. B
16. A
17. B
18. C

I will answer questions if you post them by 9:00 pm. Good luck studying!
Ms. Ray

Week 4 Practice Problems 9/13/10

1. What is the square root of 169?
2. 1466/.4
3. Solve: 3•5+7-3•(20/4)-11^2
(^2 means squared)
4. Find the next 3 numbers in the pattern:
2, 3, 5, 9, 17, 
5. 1305/.05
6. 45.67 + 13
7. Write 9/12 as a decimal.
8. What whole number is the square root of 75 
closest to?
9. What is 4^6? (^6 means to the 6th power)
10. What are the 2 things you need to do to be
successful in my class?

9/10/10 Week In Review

4 day week completed!

Once again do not forget what we have covered so far. We now know how to convert between fractions, decimals and percents. We also know how to order them on a number line.

On Tuesday we talked more about IRRATIONAL numbers. These are numbers that can not be represented as a ratio of 2 integers. Do you remember what kind of numbers can be represented as a ratio of 2 integers?

You then learned about PERFECT SQUARES and SQUARE ROOTS. Perfect squares are rational numbers who's square root is a whole number. An example is 25. The square root of 25 is 5. 

There are rational numbers who have a square root that is irrational or a rational number but not a whole number. An example is the square root of 45. We can estimate this square root to be between 6 and 7, but closer to 7.

To square a number you multiply the number by itself. Squaring a number involves using an EXPONENT. The exponent we use when we square a number is 2. 

The last thing we talked about was STANDARD and SCIENTIFIC NOTATION. Standard notation is just the number written out with all it's digits. Scientific notation is a number between 1 and 10 multiplied by a power of 10. 

Remember that at any point I should be able to quiz you on your perfect squares and you should know them. We will also continue to take multiplication blitz's until everyone can master them.

We will be taking a test this week that will cover everything we have talked about so far. Be sure to look over the Week in Reviews to make sure you will do great on the test. You all are doing a great job so far. Keep up the great work.
Remember to be successful you must:
DO WORK
STAY FOCUSED

Volleyball

Congratulations to the 8A girls volleyball team for beating Killough tonight!!!!!


Olle Owls are on a roll!!!

9/3/10 Week in Review

What another great week we had in the classroom!
Let's remember what we did:
Monday and Tuesday we took a benchmark to let me know what y'all already know so I don't waste time teaching you things you already know.
Wednesday through Friday we spent more time converting and ordering RATIONAL numbers.
A rational number is a number that can be written as a RATIO of 2 integers. Integers are the positive and negative whole numbers. We did a concept map in class to discuss rational numbers.

We split up into rational families which were simply families of rational numbers that are EQUIVALENT. Equivalent means for 2 or more things to be equal. One example of a rational family is; 1/4, .25, 25%
Then we ordered these families on our number line. We also introduced negative numbers in this activity. Which is the smaller value, -.5 or -.4? It is -.5 because it is further away from 0. Would you rather have $.50 taken from you or $.40 taken from you? You would rather $.40 because that would leave you with the MOST money so it is a GREATER value. Don't forget the symbols we use to compare numbers: <, >, = less than, greater than, equal to

This next week we will be talking about IRRATIONAL numbers. This will lead us to talking about squaring numbers and taking the square root of numbers. On Wednesday you will be taking a benchmark that will test what you know and learned about converting and comparing rational numbers. I recommend looking over both week in reviews. If you have questions please ASK ASK ASK ASK.

Here's to another great week of learning!
Ms. Ray

Irrational Numbers

OPEN HOUSE!

Open house will be September 14th (Tuesday) from 6:30 - 8:00.
Details will come soon but...
If a parent comes and signs in at my classroom you will receive a free homework pass!!!!


Can't wait to meet your parents and tell them how great you all are as students.

Week 3 Practice Problems 9/7/10

Because of the Labor Day Holiday this week there are only 8 problems to be completed.
Please if you have questions comment on this post or ask me during the warm-up in class.

1. .56 x 1.45
2. Joe's height is 6 feet 1 inch and his son's height is
4 feet 7 inches. What is the difference between father
and son's height?
3. Order from least to greatest:
31%, .270, 13/50, .2614
4. Write 2 equivalent fractions to 3/5.
5. What is the square root of 64?
6. Solve: 4.3 + 62 - 3(4)
7. Write a rational number "family".
(equivalent fraction, decimal, percent)
8. Explain what it means to square a number.

Got Questions??

If you have questions about the practice problems for the week or anything we are doing in class please comment on this post.
If you tell me to KEEP PRIVATE, I will not post your comment for the public. If you don't I will post it publicly, only because someone else might have the same question. I will then respond. You may stay anonymous or include your name.

I may not get to questions Thursday night so if you have a question on the practice problems try to submit them before 5:00 on Thursday.

Ready to answer,
Ms. Ray

Possible careers

I see some people have taken the current survey regarding your dreams for yourself. Someone said they dream of being a doctor. What kind of doctor would you like to be? Do you know what it takes to get to that position? These are things to think about. Comment on this post with a response and your name (If you tell me I will not make the comment public and only I will see it) and I will give you 5 points on an assignment (non-test).

As well as the person that said other. Do you know what it is you dream of doing? If so, explain what it is and why you chose that. Also for 5 points on an assignment.

Be sure to include your name in the comment!!!!!!!