## Thursday, November 29, 2012

### IN CLASS WORK (PRACTICE SOLVING 1-STEP ADDITION/SUBTRACTION EQUATIONS)

These 10 problems are on the board in the classroom. If you are absent please print these or write them down so you can practice them. This is not a graded assignment and is just practice. The homework will be posted next.

1.)    p + 8 = 9
2.)    3 = x - 16
3.)    a + 13 = 18
4.)   15 = y - 7
5.)    n - 24 = 9
6.)   39 = d + 2
7.)   y - 18 = 7
8.)   8 = n + 5
9.)   a - 34 = 4
10.) c - 21 = 25

### PRACTICE SOLVING 1-STEP ADDITION & SUBTRACTION EQUATIONS

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

Algebra Planet Blaster
http://www.aplusmath.com/games/planetblast/index.html

Battleship
http://www.quia.com/bal36544.html

## Tuesday, November 27, 2012

### CLASSWORK 11/27/2012

WE ARE GRADING HOMEWORK? YEP THE STUDENTS ARE GRADING PRETEND HOMEWORK THAT I CREATED. I HAVE 7 DIFFERENT SHEETS THAT WILL BE PASSED OUT THROUGHOUT THE CLASS AND THE STUDENTS WILL GRADE THEM.

THE EXPECTATIONS ARE THAT EACH STUDENT SUBSTITUTES THE SOLUTION INTO THE EQUATION AND THEN WORK IT OUT. IF THE SOLUTION MAKES THE EQUATION TRUE THEN THE STUDENTS PROBLEM IS CORRECT. IF THE SOLUTION DOES NOT MAKE THE EQUATION TRUE THEN THE STUDENTS PROBLEM IS INCORRECT. AFTER ALL PAPERS HAVE BEEN GRADED THE STUDENTS ARE GOING TO FIND OTHERS WHO GRADED THE SAME PAPER AND THEN COMPARE TO SEE IF THEY ALL GAVE THE SAME GRADE ON THE HOMEWORK.

I DO NOT HAVE THESE SCANNED BUT IF YOU NEED ANOTHER COPY JUST ASK IN CLASS. THIS ACTIVITY/ASSIGNMENT SHOULD BE COMPLETED IN CLASS AND I HOPE WE HAVE TIME TODAY IN CLASS TO COMPARE PAPERS. IF NOT THIS WILL BE HOMEWORK AND WE WILL COMPARE PAPERS TOMMORROW IN CLASS.

### EQUATIONS AND THEIR SOLUTIONS

Goodness I am behind. We have gotten past combining like terms and using the distributive property so now we can concentrate on equations.

Equations are much like expressions except for 1 or 2 MAJOR things. Its all in the way they look. An equation has an equal sign (hint "equ" leads us to think equal) and also an equation gives a value after the equal sign. In an expression you do not have either of those things.

As we are beginning our work with equations we are starting with solutions and substitution. This is all mainly review because we worked with substitution when we were studying expressions. However now we are looking at both sides of the equal sign.

For example
3 + x = 9 for x = 6 (this says that the value of x is 6, you must substitute it in to see if you get 9)
3 + 6 = 9
9 = 9 (yes, 6 is a solution because it makes the statement 3 + x = 9 TRUE).

Another example
4m = 24 for m = 7 (substitute the 7 for the m)
4 x 7 = 24
28 = 24 (since the 2 values are not the same, this means that 7 is not a solution)

On the homework
• CUBES