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# September 4 2013

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### September 4 2013

1. 1. September 4, 2013 Today: Submit Signed Syllabus Document Warm-Up A Closer Look at the Syllabus Working with Variables
2. 2. Warm-Up: Number Sense Large & Small Numbers 1. What number comes after a trillion? A Quadrillion How many trillions in a quadrillion? Write your answer in numbers and words: 2. How far is a one-way trip from the Earth to the Sun? 1000 20,420,060,000 miles Twenty billion, four-hundred twenty million, sixty- thousand miles. (‘and’ is not a number)
3. 3. Warm-Up: Number Sense Large & Small Numbers Write your answer in numbers and words: 3. In inches, what is the average width of a human hair? 0.007 inch Seven -Thousandths of an inch A thousand hairs lined up is how long? Write your answer in numbers and words: 4. In seconds, how long does it take a hummingbird to flap its wings one time? 7 inches 0.12 seconds Twelve-Hundredths of a second
4. 4. :Algebra: What it is and isn’t Algebra is: A system (set of rules) for solving problems involving mathematics. Algebra is not: The only method to solve problems. In fact, every problem we do this year could be solved without algebra. It would take a lifetime to do it, though. Understand this…. There are no Algebra problems. There are problems which can be solved easier by using Algebra as your solution system. For example, let’s solve this problem without algebra first: Two more than the sum of three consecutive numbers is 200.
5. 5. A Simple Algebra Rule Example 1. 8 + 7 = 15; 8 = 2. 15 – 7 = 8; 15 = 3. x + 7 = 15; x = 4. x - 7 = 8; x = 5. 8 * 4 = 32; 8 = 6. 32/4 = 8; 32 =
6. 6. A Closer Look at the Syllabus: A. Notebook: Your notebook is to be divided into three sections: 1. Warm-Up 2. Formulas & Vocabulary 3. Class Notes & Practice Problems Always begin your entry with the date. On most days, half of the warm-up exercises will be solved. The remaining problems will be graded on effort and correctness. Your participation grade includes solving warm-up questions the board when called, and regularly teaching your partner the step-by-step solution to one of the assigned class work problems.
7. 7. A Closer Look at the Syllabus: Lunch-Time Service (LTS) The following are examples of actions/behaviors that qualify for LTS. You can bring work with you if you have, if not, I will provide you a short assignment: LTS occurs at the beginning of lunch that day. 4th period service is the following class day. Example Time (minutes) Tardy: 15 Water/Restroom 15 Every 3rd class work not submitted 30 Disruptive Behavior, Prohibited Items 15 Time doubles if no-show on 1st day, referral to Mr. Davis if no show for 2 days.
8. 8. Algebra Review: See Handout.
9. 9. Class Work: Pages 1-2: All (Inc. Mixed Review) After today, class work will almost always be limited to around 20 questions