Presentation on theme: "Foundations: basic logic, writing skills"— Presentation transcript:
1Foundations: basic logic, writing skills 3/25/2017Foundations: basic logic, writing skillsEssential Question: What are the elements of a conditional statement? What is a converse? What does conditional mean?Homework: If-then Comic Strip Analysis
2Keep a Lookout:Work out the problem independently as we will take a class poll for the answerWork out the problem independently & then share your work with your partnerWork together from the get-go
3Objective: Recognize and analyze a conditional statements Learning Goal #4: LOGICObjective: Recognize and analyze a conditional statements
4Conditional Statements Called “if-then statements.”Hypothesis- The part following if.Conclusion- The part following then.* Do not include if and then in the hypothesis and conclusion.
5Hypothesis and Conclusion If it is sunny outside, then it is hot.Truth Values?
6Kfed: you give Kfed money he makes and awesome album Hypothesis- If you give Kfed money, then he makes an awesome album.Hypothesis-Conclusion-
7The converse of a conditional statement is formed by exchanging the hypothesis and the conclusion. Conditional- If it is sunny outside, then it is hot.Converse- If it is hot, then it is sunny outside.
8* TRUTH VALUE?Conditional- If a figure is a square, then it has four sides.Converse- If a figure has four sides, then it is a square.* Not all four sided figures are squares. Counterexample: Rectangles also have four sides.
9Rewrite the statement as a conditional statement, then find the converse. All teenagers are lazy.Conditional-Converse-If you are a teen, then you are lazt.If you are lazy, then you are a teen.
10NO HOMEWORK FOR A MONTH! NOT! When you negate (“not”) the hypothesis and the conclusion of a conditional statement, you form the inverse.Example:Cond. Stmt: If is sunny outside, then it is hot.Inverse: If it is NOT sunny outside, then it is NOT hot.
11When you negate the hypothesis and conclusion of the converse of a conditional statement, you form the contrapositive.NOT!
12Example:Cond. Stmt: If it is sunny outside, then it is hot.Converse: If it is hot, then it is sunny outside.Contrapositive:If it is NOT hot, then it is NOT sunny.
13Sum it up for us: Conditional statement Converse Inverse Contrapositive
14QUIZ NEXT CLASS!! Cartoon Due Next Class Practice: Conditional Statements worksheetQUIZ NEXT CLASS!!Cartoon Due Next Class