# TWISTERTWISTER. TWISTERTWISTER Directions: 1)Each student picks a circle with a color (red, blue, green, yellow) from a bag. 2)The teacher spins the spinner.

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TWISTERTWISTER

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.

TWISTER 1 1 5 5 9 9 13 17 21 2 2 3 3 4 4 18 10 14 6 6 22 7 7 23 11 15 19 8 8 24 20 16 12 Choose a number.

TWISTER conclusion

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

TWISTER Paragraph proof

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

TWISTER conjecture

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

TWISTER inverse

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

TWISTER negation

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

TWISTER Flowchart proof

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

TWISTER polygon

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

TWISTER Conditional statement

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

TWISTER Inductive reasoning

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

TWISTER contrapositive

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

TWISTER Truth value

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

TWISTER polygon

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

TWISTER Biconditional statement

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

TWISTER hypothesis

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

A four-sided polygon back

TWISTER converse

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

TWISTER Deductive reasoning

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

TWISTER hypothesis

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

TWISTER definition

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

TWISTER proof

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

TWISTER triangle

Is defined as a three-sided polygon back

TWISTER counterexample

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

TWISTER Two column proof

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

TWISTER conclusion

The part of a conditional statement following the word then back

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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