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Warm-up Date 09/24/08 Sec 1-6 Subrtacting Integers

Warm-up Date 09/24/08 Sec 1-6 Subrtacting Integers. What are the 2 key concepts for adding and subtracting integers? Find the difference. Date 10/12/09 Sec 1-7 Inductive Reasoning. Goal:. To write rules for patterns To make predictions and test conjectures. ...And Why.

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Warm-up Date 09/24/08 Sec 1-6 Subrtacting Integers

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  1. Warm-up Date 09/24/08 Sec 1-6 Subrtacting Integers • What are the 2 key concepts for adding and subtracting integers? • Find the difference.

  2. Date 10/12/09 Sec 1-7 Inductive Reasoning

  3. Goal: • To write rules for patterns • To make predictions and test conjectures

  4. ...And Why To use inductive reasoning in finding patterns and in making conjectures about economic data.

  5. Key Words Inductive reasoning: Making conclusions based on patterns you observe. Conjecture: A conclusion you reach by inductive reasoning. Counterexample: An example that proves a statement false.

  6. Use inductive reasoning. Make a conjecture about the next figure in the pattern. Then draw the figure. The next figure will have a shaded circle at the top right.

  7. Write a rule for each number pattern. Start with 0 and subtract 4 repeatedly. Alternate 2 and its opposite. Start with 1. Alternate multiplying by 3 and adding 1.

  8. Write a rule for each number pattern. Start with 4 and add 5 repeatedly. Start with 3 and multiply by 3 repeatedly. Start with 1,1. Then each number is the sum of the previous 2 #s

  9. Incorrect; Is each conjecture correct or incorrect? If it is incorrect, give a counterexample. a) All birds can fly. Incorrect; an ostrich cannot fly. b) Every square is a rectangle. Correct c) The product of 2 #s is never less than either of the #s.

  10. Did we achieve our goal? • To write rules for patterns • To make predictions and test conjectures

  11. On-Line Help Web Site: PHSchool.com Tutor Web Code: ade-0202 Quiz Web Code: ada-0202

  12. Planner: • Write today’s goal. • Write today’s assignment.

  13. Assignment: • Practice 1-7 • Reflective Journal

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