Monday, September 30, 2012

 15 passed, 13 failed (passing = 70)  Scores ranged from 46 to 92  Mean score: 69.3

Number of students Score

 Why did half the class fail?  How can class time be most effective for you?  How important is your success in this class to you?  This week, take some time to think about these questions and your goals for this class.  My goal: I would like to see ¾ of the class pass the course.

 Conference sign-up ◦ Class on 10/7 canceled for conference time  Conference will be worth 8 quiz grades ◦ Easy grade booster – attend and you will get 80/80  Need to attend your conference ON TIME to receive your exam back & full credit (no show = lost points)  A chance to voice your needs and concerns

 The exam will be on Wednesday, October 23  Topics: ◦ Decimals ◦ Square roots ◦ Inequalities ◦ Working with variable expressions  Calculators can now be used  Homework late policy is now in full effect

 Better than fractions. Don’t you agree?  Used in all fields & professions, for example: ◦ Medical ◦ All sciences ◦ Any subject that uses statistics (Psych, Sociology)  Use the same rules as integer arithmetic… ◦ with a couple of extra rules you need to know, coming up (hint hint will be on the EXAM hint)

Make sure the decimal points line up.

 Count up the total number of digits after the decimal points.  Then, count that total number from the right of your answer, and place the decimal point.

0

0

 Decimals are essentially fractions; they represent a part of a whole.  0.5 is one-half ◦ Think > $0.50 is fifty cents, half of a dollar  0.25 is… (write down your guess) ◦ $0.25 is what fraction of a dollar? ◦ A quarter -> one-fourth  0.75 is… (write down your guess) ◦ What does $0.75 look like? ◦ Three quarters -> three-fourths

 The more zeros after the decimal point, the smaller a decimal is. ◦ Smallest to largest: < 0.05 < 0.5 ◦ Even when: 0.01 > ◦ 0.01 is bigger because of the number of zeros  Zeros at the end of a decimal may occur, but they don’t mean anything. ◦ So, 0.5 = 0.50 = =

c/decimals/comparing-decimals/v/comparing- decimals-1-example

 A perfect square is a number that is any integer squared, aka times itself.

 Also called radical expressions  Inverse operation of “squared”  Easy to find square roots of perfect squares  Calculator

 Just complete the slip and you will receive a 10/10.  The quiz next class will involve math.