Merry Christmas!!!

I hope you all have a wonderful time with family this holiday! Merry Christmas!

<3, Ms. J & Bucky

Quiz Tomorrow!

Hello mathlings! This is just a reminder that tomorrow's quiz is going to include the following concepts:

Greatest Common Factor (GCF)

Least Common Multiple (LCM)

Equivalent Fractions

Simplest Form

Comparing and Ordering Fractions

Please study your notes tonight. You will need to use prime factorization to find both the GCF and LCM for some of the problems. A few reminders:

* When finding the GCF through prime factorization, the common factor that "matches" MUST be found in ALL of the numbers you are breaking down.

* When finding the LCM through prime factorization, the common factor that "matches" needs only to be found in TWO of the numbers you are breaking down to be considered a match and used once. It does not need to be found in all of the numbers you're breaking down.

* In order to compare and order fractions, all of the fractions must have the same denominator. Then, compare using the numerators. In order to change the fractions to equivalent fractions with the same denominator:

1. Find the Least Common Denominator (LCD).
2. Change the fractions to equivalent fractions using the LCD.
3. Ask: How could I get from my original denominator to the new denominator? Then, multiply the numerator by whatever you would multiply the denominator.

Again, please, please, please study your notes! We take them for a reason :) Good luck and happy studying!

Infographic

Here's a great infographic from Long Beach Unified School District that illustrates how to turn a mixed number into an improper fraction:

Circumference Visuals

Hey everyone! We will be reviewing circumference tomorrow. Here are some visuals for study (source: WikiHow):

Dividing Decimals by Decimals help

Study for quiz on Monday - decimals divided by decimals. This is a great link:

http://www.coolmath.com/prealgebra/02-decimals/10-decimals-dividing-by-decimal-01

Also, look through your notes and through chapter 4 in the text. Look over the assignment we did on Wednesday and the notes you took during review on Thursday. There will not be retakes for this quiz.

Dividing Decimals by Decimals

Hello all! I just wanted to say thanks again to Khamal for teaching us the lattice method for multiplication today. Khamal, you did an AMAZING job!

Tomorrow we return to dividing decimals by decimals. Just like for last night's homework, remember to move the outside decimal all the way to the right in order to make it a whole number (then, don't forget to move the decimal on the inside the same # of times!). We'll be doing a set of ten questions in class that I will collect as an assessment. You will be able to use your notes.

Dividing Decimals Practice

http://www.coolmath.com/prealgebra/02-decimals/decimals-cruncher/division

Quiz Monday!

Hello all! Monday we'll be taking a quiz on adding and subtracting decimals. Tomorrow we'll review by playing a team game in class. You guys did well today!

Glencoe Online

Greetings Mathlings! Here is the link for all of the awesome Glencoe extras we can use online:

http://www.glencoe.com/sec/math/msmath/mac04/course1/self_check_quiz/index.php/

Welcome Back!

WOW, guys! Is it really that time already?! I'm looking forward to seeing some familiar faces and to meeting new ones. It's going to be a great year! Stay tuned for details coming soon regarding how to check this blog for homework assignments, upcoming projects, and fun stuff we'll be doing in class. :) I hope everyone had a wonderful summer and can't wait to catch up with all of you tomorrow!!!

Final

Hello all. Just wanted to give you a run-down of the major concepts that will be on your final.

Please review the following in your notes (also, remember to use Glencoe's online Self-Check Quizzes to test your knowledge of each section in the book):

- Prime factorization
- Powers and exponents
- Order of operations
- Variables and expressions
- Area

- Graphing (Bar/Line graphs)
- Frequency tables & Stem and Leaf plots
- Measures of central tendency (Mean, Median, Mode, Range)

- Adding, subtracting, multiplying, and dividing decimals

- Adding, subtracting, multiplying, and dividing fractions
- GCF/LCM
- Turning fractions into decimals
- Turning decimals into fractions

- Comparing/ordering fractions and decimals

- Adding, subtracting, multiplying, and dividing integers
- The Coordinate Plane

- Solving one- and two-step equations
- Function tables

Homework 5/9

Addition and Subtraction Equations Games

http://www.kidsmathtv.com/learn/pre-algebra-subtraction-2-game-for-7th-grade-monster-board-game/

http://www.math-play.com/One-Step-Equation-Game.html

http://www.math-play.com/soccer-math-one-step-equations-game/one-step-equations-game.html

http://www.xpmath.com/forums/arcade.php?do=play&gameid=69 (click "start")

http://www.xpmath.com/forums/arcade.php?do=play&gameid=68 (click "start")

http://www.mathplayground.com/algebraequations.html

Videos for Wednesday, 4/6

Hello all! Please closely watch these videos that explain some of the logic behind solving equations.

https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-solving-basic-equations/v/simple-equations

https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-solving-basic-equations/v/solving-one-step-equations-2

https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-solving-basic-equations/v/solving-one-step-equations

https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-solving-basic-equations/v/one-step-equations

If there is time left in class, you may play an integer game, or you can visit khanacademy.org and try some of what you've learned today. Type "solving equations" in the search bar and it will give you several options for equations practice. The practice exercises have stars next to them.

Chapter 8 Review

Before I get into all the other stuff:

Here are the links for Orbit Integers (adding integers game) and Integer Warp (multiplying integers game). 

http://www.arcademics.com/games/orbit-integers/orbit-integers.html

http://www.arcademics.com/games/integer-warp/integer-warp.html

And now, some reminders for Chapter 8:

*Adding integers with the same sign - add them together and keep the sign

*Adding integers with different signs - find the difference of their absolute values; then, keep the sign of the number with the greatest absolute value

*Subtracting integers - Use the K.F.C. (Keep/Flip/Change) method to turn your subtraction problem into an addition problem; then, follow the steps above for addition

*Multiplying AND dividing integers - Same sign = positive; Different signs = negative

Coordinate plane - Walk into the building before you take the elevator (x,y)

Have an awesome break, guys!

Fried Chicken and... Subtraction?!

 

Scared of subtraction involving negative integers? Don't be - remember, it's just addition in disguise!

The rule for subtraction is:

Add the OpPoSiTe!


Who likes fried chicken? It's one of my all-time favorites. :)

Img: thebittenword.com

So... what does fried chicken have to do with subtracting integers? Check out this cool chart from passyworldofmathematics.com:


Then, solve your problem as an addition problem. Here are a few examples:

-5 - 3 = ?
-5 + (-3) = -8  ---> Both numbers are the same sign, so we can add like normal and keep the sign.

7 - (-2) = ?
7 + 2 = 9   ---> Again, both numbers are the same sign, so we can add like normal and keep the sign.

4 - 8 = ?
4 + (-8) = ?  ---> Now we've got addition with two different signs, so remember to use your absolute values!
The absolute values are 4 and 8. The difference between 4 and 8 is 4. Now, is it negative or positive? Look at the original number that had the greatest absolute value: -8. Since it's negative, we know the answer is -4.

Reminders for integer operations:
- Positive + Positive = Positive
- Negative + Negative = Negative
- Adding two numbers with different signs: Find absolute values. Determine difference between
  absolute values. Use the sign of the number that has the greatest absolute value.
- Change to addition and add the opposite (KEEP, FLIP, CHANGE). *Once you've turned your
   subtraction problem to addition, forget about the subtraction part. You are now solving an addition
   problem and should proceed with the rules above.

Homework 1/21/16

Homework 1/12