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GBK Geometry

GBK Geometry. Jordan Johnson. Today’s plan. Greeting Review Asg #7: Ch. 1 Algebra Review (pp. 39-40): Read p. 39, and do Exercises 1-50. Lesson: Conditional Statements Review Unit 1 Test Work / Questions Clean-up. Sports Rules.

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GBK Geometry

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  1. GBK Geometry Jordan Johnson

  2. Today’s plan • Greeting • Review Asg #7: Ch. 1 Algebra Review (pp. 39-40): • Read p. 39, and do Exercises 1-50. • Lesson: Conditional Statements • Review Unit 1 Test • Work / Questions • Clean-up

  3. Sports Rules • If an opponent touches the ball, all the passing side is eligible to receive the ball. • A game is forfeited if a team does not have at least two players on the court. • If the kicker breaks a rule, the defending side is awarded an indirect free kick. • A runner is out if he fails to beat a throw to the base to which he is running. • If a goaltender leaves the vicinity of his crease, a minor penalty will be assessed.

  4. Conditional Statements, cont. If X, then Y. premise or hypothesis conclusion

  5. Conditional Statements, cont. “If X, then Y.” can be abbreviated: X  Y Read it out loud as “X implies Y.”

  6. Converses • If it is snowing, then it is cold.

  7. Converses • If it is cold, then it is snowing. ?

  8. Converses • “If Y then X” is the converse of “If X then Y.” • It is not the same. • It is not equivalent, either. • Our example of converses: If it’s snowing outside, then it’s cold outside. versus If it’s cold outside, then it’s snowing outside.

  9. Practice • Write the statement, “If I am tired, I rest.” Then: • Label the hypothesis; label the conclusion. • Write the converse. • Rewrite in “If ___, then ___” form: • I’ll be late if I get to school after 8:15. • All dogs have fur.

  10. Euler Diagrams “If it is snowing, then it is cold.” it is cold it is snowing

  11. Euler Diagrams: Practice • Make Euler diagrams for: • If you order by noon, your package will ship today. • If your oven doesn’t work, you can’t bake cookies.

  12. Unit 1 Test • Grading: Anonymous, 1 page at a time • Scoring: • Check Marks – correct • “X” marks – incorrect • “P” / “P+” / “P-” – partially correct • Error analysis – due next week • Also to be included in your portfolio

  13. Work • For tomorrow: Read Ch. 2, Lessons 1-2. • For Wednesday: Asg #8. • For Thursday/Friday: Asg #9. • For Tuesday: Test Analysis form

  14. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and back tables). • See you tomorrow!

  15. Conditional Statements “See what will happen to you if you keep on biting your nails…”

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