Deductive vs. Inductive Reasoning. Objectives Use a Venn diagram to determine the validity of an argument. Complete a pattern with the most likely possible.

Slides:

Advertisements

Similar presentations

Test the validity of this argument: Some lawyers are judges. Some judges are politicians. Therefore, some lawyers are politicians. A. Valid B. Invalid.

Advertisements

DEDUCTIVE vs. INDUCTIVE REASONING

Geometry 2.3 Big Idea: Use Deductive Reasoning

1 Valid and Invalid arguments. 2 Definition of Argument Sequence of statements: Statement 1; Statement 2; Therefore, Statement 3. Statements 1 and 2 are.

2.4 Deductive Reasoning HW: Lesson 2.4/ 1 – 10, 13.

Targets Use the Law of Detachment. Use the Law of Syllogism. Lesson 2-3: Deductive Reasoning TARGETS.

LOGO LESSON 2 REASONING By Miss.Manita Modphai. Contents Inductive Reasoning 1 Deductive Reasoning 2 Relation with Venn Diagram 4 Type of Argument 3.

Deduction: the categorical syllogism - 1 Logic: evaluating deductive arguments - the syllogism 4 A 5th pattern of deductive argument –the categorical syllogism.

Inductive and Deductive Reasoning Geometry 1.0 – Students demonstrate understanding by identifying and giving examples of inductive and deductive reasoning.

How to Argue Successfully Deductive and Inductive Reasoning.

Basic Argumentation.

Inductive & Deductive Reasoning

DEDUCTIVE REASONING SYLLOGISM FALSE PREMISE INDUCTIVE REASONING.

Reasoning Top-down biases symbolic distance effects semantic congruity effects Formal logic syllogisms conditional reasoning.

9/20/12 BR- Who are the 3 Argument Brothers (from yesterday) Today: How to Argue (Part 1) MIKVA!!

10/20/09 BR- Who are the three “brothers” of Argument? Today: Constructing A Logical Argument – Deductive and Inductive Reasoning -Hand in “facts” -MIKVA.

Reasoning. Inductive and Deductive reasoning Inductive reasoning is concerned with reasoning from “specific instances to some general conclusion.” Deductive.

Question of the Day!  We shared a lot of examples of illogical arguments!  But how do you make a LOGICAL argument? What does your argument need? What.

+ Vocabulary… Conjecture: an unproven statement that is based on observations. Example: a. 1 x = 11 b. 12 x = 111 c. 123 x = 1111 d.

DEDUCTIVE VS. INDUCTIVE REASONING. Problem Solving Logic – The science of correct reasoning. Reasoning – The drawing of inferences or conclusions from.

Thinking Mathematically Arguments and Truth Tables.

DEDUCTIVE VS. INDUCTIVE REASONING Section 1.1. PROBLEM SOLVING Logic – The science of correct reasoning. Reasoning – The drawing of inferences or conclusions.

Critical Thinking, Reading and Writing Part 2 Ed McCorduck CPN 101—Academic Writing II on Computer SUNY Cortland

Deductive and induction reasoning

CHAPTER 9 CONSTRUCTING ARGUMENTS. ARGUMENTS A form of thinking in which certain reasons are offered to support conclusion Arguments are Inferences - Decide.

Entry Task. Using Deductive Reasoning 2.4 Learning Target: Given a true statement I can use deductive reasoning to make valid conclusions.

09/17/07 BR- What is “logic?” What does it mean to make a logical argument? Today: Logic and How to Argue (Part 1)

Deductive Reasoning. Deductive reasoning The process of logical reasoning from general principles to specific instances based on the assumed truth of.

Deductive and Inductive Reasoning

 Induction is the process of drawing a general conclusion from incomplete evidence.  You consider evidence you have seen or heard to draw a conclusion.

Deductive s. Inductive Reasoning

5-Minute Check Converse: Inverse: Contrapositive: Hypothesis: Conclusion: The measure of an angle is less than 90  The angle is acute If an angle is.

Section 3.6 Reasoning and Patterns. Deductive Reasoning Deductive reasoning starts with a general rule, which we know to be true. Then from that rule,

DEDUCTIVE vs. INDUCTIVE REASONING

Use of Reason and Logic RATIONALISM.  A Rationalist approach to knowledge is based on the belief that we can ascertain truth by thinking and reflection.

Do now Can you make sure that you have finished your Venn diagrams from last lesson. Can you name 5 famous mathematicians (including one that is still.

09/17/08 BR- Identify the premises and the conclusion in the following deductive argument. Is it valid or invalid? All fish need gills to breath water.

DEDUCTIVE vs. INDUCTIVE REASONING

DEDUCTIVE vs. INDUCTIVE REASONING

Reasoning and Proof Unit 2.

Logic Part 2 A Mr. C Production.

3 Types of Arguments: Ethos- Establishing a reason to listen or believe the speaker. E.g., “that guy is wearing a tie so he must know what he’s saying.”

Deductive and Inductive REASONING

Inductive vs. Deductive Reasoning

Deductive Logic, Categorical Syllogism

10/28/09 BR- What is the most important factor in winning an argument

02-2: Vocabulary inductive reasoning conjecture counterexample

DEDUCTIVE vs. INDUCTIVE REASONING

Inductive and Deductive Reasoning

Sec. 2.3: Apply Deductive Reasoning

MAT 142 Lecture Video Series

DEDUCTIVE vs. INDUCTIVE REASONING

Reasoning, Logic, and Position Statements

DEDUCTIVE vs. INDUCTIVE REASONING

New Rhetoric Journal PDN: read the sentence below and identify what techniques the authors used to support their claim. Come up with as many techniques.

DEDUCTIVE vs. INDUCTIVE REASONING

DEDUCTIVE REASONING Forensic Science.

Thinking Critically Copyright © 2011 Pearson Education, Inc.

DEDUCTIVE vs. INDUCTIVE REASONING Section 1.1. Problem Solving Logic – The science of correct reasoning. Reasoning – The drawing of inferences or conclusions.

DEDUCTIVE vs. INDUCTIVE REASONING

Chapter 2.3 Notes: Apply Deductive Reasoning

Deductive vs. Inductive Reasoning

2-4 Deductive Reasoning Deductive Reasoning: Using facts, rules, definitions, or properties to reach logical conclusions. Law of Detachment: A form.

Syllogisms and Enthymemes.

Propositional Logic 1) Introduction Copyright 2008, Scott Gray.

If there is any case in which true premises lead to a false conclusion, the argument is invalid. Therefore this argument is INVALID.

DEDUCTIVE vs. INDUCTIVE REASONING

If there is any case in which true premises lead to a false conclusion, the argument is invalid. Therefore this argument is INVALID.

Presentation transcript:

Deductive vs. Inductive Reasoning

Objectives Use a Venn diagram to determine the validity of an argument. Complete a pattern with the most likely possible next item. Explain a general rule or pattern given a word and letter pairing.

Vocabulary Deductive reasoning Inductive reasoning Venn diagram Syllogism Valid/invalid argument

Reasoning: Deductive reasoning: Inductive reasoning: the drawing of inferences or conclusions from known or assumed facts the application of a general statement to a specific instance the application of specific instances to form a general conclusion

Classify the argument as deductive or inductive: 1.I ate a chili dog at Joe’s and got indigestion. 2.I ate a chili dog at Ruby’s and got indigestion. Therefore, chili dogs give me indigestion.

Classify the argument as deductive or inductive: 1.All spicy foods give me indigestion. 2.Chili dogs are spicy food. Therefore, chili dogs give me indigestion.

Syllogism: Valid: Invalid: an argument composed of two statements or premises followed by a conclusion an argument if valid if the conclusion of the argument is guaranteed to follow from the premises an argument is invalid if there is at least one instance where the conclusion does not follow from the premises

Draw a Venn diagram to determine if the argument is valid or invalid: 1.No one who can afford health insurance is unemployed. 2.All politicians can afford health insurance. Therefore, no politician is unemployed.

Draw a Venn diagram to determine if the argument is valid or invalid: 1.All homeless people are unemployed. 2.Roseanne is not a homeless person. Therefore, Roseanne is not unemployed.

Draw a Venn diagram to determine if the argument is valid or invalid: 1.All doctors are men. 2.My mother is a doctor. Therefore, my mother is a man.

What is the most likely next number: 1, 2, 4, 7, ____ 4, 7, 10, 1, _____ 31, 28, 31, 30, _____

What is the most likely next term: O, T, T, F, ____ T, F, S, S, _____

Determine the rule for assigning the letter to each word: additiondifferenceproductdivisorfraction netr

Determine the rule for assigning the letter to each word: exponentdifferenceproductquotientfactor fjpv