Geometry, Teacher\'s Edition

(Axel Boer) #1

3.2 Reasoning and Proof


Inductive Reasoning


I.SectionObjectives



  • Recognize visual patterns and number patterns

  • Extend and generalize patterns

  • Write a counterexample to a pattern rule


II.Cross-curricular-Music



  • Prepare several different examples of repetitive music.

  • For example, rap, classical, folk song, childrens song.

  • You want a few with a refrain or a clear consistent pattern.

  • You will need to prepare this ahead of time.

  • You want the students to develop a rule for each selection.

  • Brainstorm a list of possible pattern rules and decide on one.

  • Then write this one on the board.

  • Ask the students to come up with a counterexample to the pattern rule.

  • You can do this first one as a whole class so that the students understand the idea.

  • Then break students off into groups.

  • Have them listen to each of the other selections and write a rule and a counter example for each.

  • When finished, allow time for students to share their work.


III.TechnologyIntegration



  • Have the students complete a google search on patterns in nature.

  • Students are going to select one or more examples of patterns in nature.

  • Ask them to write a rule for each pattern.

  • Then write a counter example for each pattern.

  • Finally allow time for students to share their work.


IV.NotesonAssessment



  • Assessment is done through class sharing.

  • Do the students understand how to write a pattern rule?

  • Are the rules accurate?

  • Do the students understand how to write a counterexample?

  • Provide feedback as needed.


Conditional Statements


I.SectionObjectives


3.2. Reasoning and Proof

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