Teacher Resources for Instructional Planning


Geometry Std 9: Use inductive reasoning to make conjectures and deductive reasoning to justify conclusions.

Lesson Plans Direct and Indirect Reasoning This lesson helps students with deductive reasoning, including a little logic and Venn diagrams. Activity sheets with discussions are included. The Locker Problem This lesson plan encourages students to use manipulatives to examine the locker problem. Students can work together or individually and are encouraged to use spreadsheets. A student worksheet and additional "locker problem" web links are included. No Sweat Sherlock In this lesson, students use deductive reasoning in the context of Sherlock Holmes. Deduction with Pythagoras Students make deductions that lead to a proof of the Pythagorean theorem.

Resources: Chicago Public Schools 56 pages loaded with lesson plan, graphic, examples, and other information. You only need to stroll to this topic. Pattern Deduction Activities involving patterns and relations. This is also good for incorporating the equation of a line and graphing linear equations. Rectangle Pattern Challenge As a geometrical pattern continues, deduct how the numbers are changing. Inductive vs. Deductive Reasoning This Mission Critical website is a description with exercises distinguishing inductive and deductive reasoning. Resolution For those of us who use picture resolution in Geometry, this is a great little activity.
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