Week+16

=__Pre/Alg__=

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Daily Warm up 17

** Review NEW CONCEPT ** Math Vocabulary (15 min)

 * 1) //** Order of operation **//: rules for performing mathematical operation in expressions having more than one operation.
 * 2) //** Mathematical expression **//: a combination of numbers and symbols.
 * 3) //** Evaluate **//: to find the value of an expression

Discuss PEMDAS (10 min)

If the expression consists of parenthesis, exponents, +, –, × and ÷, then the operations MUST be performed in the following order.

 * ====Always work on the calculations within **//parenthesis//** first if any.====
 * ====Next, calculate the //exponents// //.//====
 * ====Then, carry out **//multiplication// or //division//**, working from //left to right// .====
 * ====Lastly, do **//addition// or //subtraction//**, working from //left to right// .====

Note: A common way for you to remember **PEMDAS** is the following:

 * ==== **P** lease====
 * ==== **E** xcuse====
 * ==== **M** y====
 * ==== **D** ear====
 * ==== **A** unt====
 * ==== **S** ally.====

Finish Worksheet #2

Do Work Sheet #2
 * [[image:Screen_shot_2010-12-07_at_8.36.18_AM.png caption="Screen_shot_2010-12-07_at_8.36.18_AM.png"]] ||

__**Rules of Exponents**__ (15 min)

Exponents are shorthand for repeated multiplication of the same thing by itself. For instance, the shorthand for multiplying three copies of the number 5 is shown on the right-hand side of the "equals" sign in (5)(5)(5) = 53. The "exponent", being 3 in this example, stands for however many times the value is being multiplied. The thing that's being multiplied, being 5 in this example, is called the "base". This process of using exponents is called "raising to a power", where the exponent is the "power". The expression " 53 " is pronounced as "five, raised to the third power" or "five to the third". There are two specially-named powers: "to the second power" is generally pronounced as "squared", and "to the third power" is generally pronounced as "cubed". So " 53 " is commonly pronounced as "five cubed".

** 1/12 **
Daily Warm up 18

Worksheet #3.




 * Do pages 47-48 #1-12 in your work book.

** 1/14 **
Daily Warm up #19, 1-15
 * Do all Problems:
 * 1.** 2 × 0 × (5 + 3) - 3
 * 2.** (2 - 6) - 4
 * 3.** 5 - 4 - 2 - (4 + 6)
 * 4.** 0 + 3 + 0
 * 5.** 2 - 6 - 6
 * 6.** 1 × 5 - 6 × (4 - 2) - 5
 * 7.** 5 × (6 × 3) + 2 - 1 + 5
 * 8.** 3 × (0 + 5)
 * 9.** 6 + 1 - (3 - 5) - 6
 * 10.** 3 + 3 - 2 - (1 × 1) × 1
 * 11.** 1 - (0 × 5) - 1
 * 12.** (2 - 3) - 6
 * 13.** (5 × 4) × 2
 * 14.** 1 + 2 + 2 × 4
 * 15.** 6 + 5 + 6 - 3 × 2

Worksheet #4




 * Do pages 49-50 #1-23 in your work book.