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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