The goal of this unit is to get students to think about the purpose and importance of logical thinking and reasoning. This unit is designed with the intention of helpings students apply reasoning to mathematical concepts as well as other areas of their lives.
Specifically, this unit will have students discover the value of inductive and deductive reasoning, conditional statements, counterexamples, and proofs.
By the end of the unit, students will be able to use their knowledge to create a valid argument for the actions of a fairy tale character and to use their argument in a mock trial.
Many supplemental materials were collected and adapted from teachers in North East ISD and Spring Branch ISD.
Baxter, Claire B., "Geometric Reasoning" (2014). Understanding by Design: Complete Collection. Paper 294.
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Fairy Tale Debate Rubric.docx (14 kB)
Day 1- Inductive vs. Deductive Reasoning.docx (13 kB)
Day 1- Sherlock Practice.docx (12 kB)
Day 2- Inductive Reasoning Practice.docx (174 kB)
Day 3- Conditional Statements.docx (12 kB)
Day 3- Venn Diagram Selection.docx (559 kB)
Day 5 & Day 11- Tests.docx (152 kB)
Day 9 - Proofs Practice.docx (100 kB)
Day 10- Origami Angles.docx (152 kB)
Day 12- Geometry & Algebra Proofs.doc (57 kB)