Lesson 1-4

Conditional Statements and Their Converses

Ohio Content Standards:

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.

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.

Vocabulary:

Vocabulary:

•If-then statements -

Vocabulary:

•If-then statements –join two statements based on a condition

“If” this, “then” that.

Vocabulary:

•Conditional Statements-

Vocabulary:

•Conditional Statements-another name for if-then statements

Vocabulary:

•Hypothesis-

Vocabulary:

•Hypothesis-the part of the conditional statement following “if”

Vocabulary:

•Conclusion-

Vocabulary:

•Conclusion-part of the conditional statement following “then”

Identify the hypothesis and

conclusion in this statement:

Identify the hypothesis and

conclusion in this statement:

If it is raining, then we will read a book.

Write two other forms of this statement:

Write two other forms of this statement:

If two lines are parallel, then they

never intersect.

Vocabulary:

Vocabulary:

•Converse-

Vocabulary:

•Converse-a conditional statement formed by exchanging the hypothesis and conclusion

Write the converse of this

statement:

Write the converse of this

statement:

If today is Saturday, then there is no

school.

Write the following statement in if-

then form:

Write the following statement in if-

then form:

Every member of the jazz band must

attend the rehearsal on Saturday.

Homework:

Pgs. 26 - 28 2 - 26 evens,

32 - 37 all