1. Conditional Statements and Their Converses
Lesson 1-4
Conditional Statements and Their Converses

2. Ohio Content Standards:

3. Ohio Content Standards:
Apply mathematical knowledge and skills routinely in other content areas and practical situations.
Apply reasoning processes and skills to construct logical verifications or counter-examples to test conjectures and to justify and defend algorithms and solutions.

4. Ohio Content Standards:
Use a variety of mathematical representations flexibly and appropriately to organize, record and communicate mathematical ideas.
Write clearly and coherently about mathematical thinking and ideas.

5. Vocabulary:

6. Vocabulary:
If-then statements -

7. Vocabulary: If-then statements –
join two statements based on a condition
“If” this, “then” that.

8. Conditional Statements-
Vocabulary:
Conditional Statements-

9. Conditional Statements- another name for if-then statements
Vocabulary:
Conditional Statements-
another name for if-then statements

10. Vocabulary:
Hypothesis-

11. Hypothesis- the part of the conditional statement following “if”
Vocabulary:
Hypothesis-
the part of the conditional statement following “if”

12. Vocabulary:
Conclusion-

13. Conclusion- part of the conditional statement following “then”
Vocabulary:
Conclusion-
part of the conditional statement following “then”

14. Identify the hypothesis and conclusion in this statement:

15. Identify the hypothesis and conclusion in this statement:
If it is raining, then we will read a book.

16. Write two other forms of this statement:

17. Write two other forms of this statement:
If two lines are parallel, then they never intersect.

18. Vocabulary:

19. Vocabulary:
Converse-

20. Vocabulary: Converse-
a conditional statement formed by exchanging the hypothesis and conclusion

21. Write the converse of this statement:

22. Write the converse of this statement:
If today is Saturday, then there is no school.

23. Write the following statement in if-then form:

24. Write the following statement in if-then form:
Every member of the jazz band must attend the rehearsal on Saturday.

25. Homework: Pgs. 26 - 28 2 - 26 evens, 32 - 37 all