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TWISTERTWISTER

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TWISTERTWISTER Directions: 1)Each student picks a circle with a color (red, blue, green, yellow) from a bag. 2)The teacher spins the spinner (either on Smartboard or homemade) and a color is revealed. 3)The teacher reads the first word of that color (yellow 1). Each yellow student has two minutes to write a definition of that word. 4)The teacher collects the definitions and reads them aloud without saying the student’s name. 5)The rest of the class votes on the best definition. The students get a point for each vote they get. 6)The students with the most votes after all words have been read is the winner.

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TWISTER Choose a number.

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TWISTER conclusion

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Is the part of a conditional statement following the word then. back

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TWISTER Paragraph proof

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Paragraph proof Is a style of proof that presents the steps of the proof and their matching reasons as sentences in a paragraph back

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TWISTER conjecture

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Educated guess A statement you believe to be true based on inductive reasoning back

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TWISTER inverse

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Is the statement formed by negating the hypothesis and the conclusion back

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TWISTER negation

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The negation of a statement p is “not p”, written as ~p back

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TWISTER Flowchart proof

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Flowchart proof A second style of a proof which uses boxes and arrows to show structure back

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TWISTER polygon

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Polygon Is defined as a closed plane figure formed by three or more line segments back

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TWISTER Conditional statement

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Conditional statement Is a statement that can be written in the form of “if p, then q” back

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TWISTER Inductive reasoning

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Inductive reasoning Is the process of reasoning that a rule or statement is true because specific cases are true back

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TWISTER contrapositive

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Is the statement formed by both exchanging and negating the hypothesis and the conclusion back

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TWISTER Truth value

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A conditional statement has a truth value of either true (T) or false (F). False – when hypothesis is T and conclusion is F back

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TWISTER polygon

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Is defined as a closed plane figure formed by three or more line segments back

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TWISTER Biconditional statement

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Biconditional statement Is a statement that can be written in the form “p if and only if q” This means “if p, then q” and “if q, then p” back

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TWISTER hypothesis

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The part of a conditional statement following the word if. back

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TWISTER quadrilateral

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A four-sided polygon back

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TWISTER converse

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Is the statement formed by exchanging the hypothesis and the conclusion back

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TWISTER Deductive reasoning

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Deductive reasoning Is the process of using logic to draw conclusions from given facts, definitions, and properties. back

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TWISTER hypothesis

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The part of a conditional statement following the word if. back

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TWISTER definition

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Is a statement that describes a mathematical object and can be written as a true biconditional back

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TWISTER proof

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Is an argument that uses logic, definitions, properties, and previously proven statements to show that a conclusion is true. back

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TWISTER triangle

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Is defined as a three-sided polygon back

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TWISTER counterexample

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To show a conjecture is always true, you much prove it. To show a conjecture is false, you have to find only one example in which the conjecture is not true. back

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TWISTER Two column proof

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Two column proof In this proof you list the steps of the proof in the left column and matching reason for each step in the right. back

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TWISTER conclusion

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The part of a conditional statement following the word then back

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TWISTER polygonBiconditional statement negation proof contrapositive conjecture Deductive reasoning counterexample conclusion definition Truth value hypothesis converse Inductive reasoning conclusion inverse polygon triangle hypothesis Paragraph proof Conditional statement Two Column proof quadrilateral Flowchart proof

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