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Geometry Section 1.1 Patterns and Inductive Reasoning

Geometry Section 1.1 Patterns and Inductive Reasoning. Geometry, like much of mathematics and science, developed when people began recognizing and describing patterns. Much of the reasoning in geometry consists of three steps. 1. 2. 3. Recognize a pattern.

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Geometry Section 1.1 Patterns and Inductive Reasoning

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  1. Geometry Section 1.1Patterns and Inductive Reasoning

  2. Geometry, like much of mathematics and science, developed when people began recognizing and describing patterns. Much of the reasoning in geometry consists of three steps.

  3. 1.2.3. Recognize a pattern. Make a conjecture about the pattern. A conjecture is an educated guess based on past observations. Prove the conjecture.

  4. Example 1: Give the next two terms in each sequence of numbers and describe the pattern in words.2, 6, 18, 54…

  5. Example 1: Give the next two terms in each sequence of numbers and describe the pattern in words.1, 3, 5, 7, 9…10, 14, 18, 22 26, 30 Add 4

  6. Reasoning based on past observations is called inductivereasoning. Keep in mind that inductive reasoning does not guarantee a correct conclusion.

  7. Later in the course, we will prove a conjecture is true using deductive reasoning. To prove a conjecture is false, you need to show a single example where the conjecture is false. This single example is called a counterexample.

  8. Example 2: Show the conjecture is false. The product of two positive numbers is always greater than the larger number. If m is an integer*, then m2 > 0. multiplication + Positive/negative…CANT be fraction/decimal

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