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2015 - Mathematical Proof and Reasoning: What, Why and How?

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Mathematical Proof and Reasoning: What, Why, and How?

  • ​Proof and Reasoning with Fractions     Guide      Unit 

               Linda Bacon, West Park Place Elementary (Christina School District)

  • Multiplicative Relationships: Fostering Students' Understanding of Ratios     Guide      Unit 

               Jennifer R. Burlew, Gauger-Cobbs Middle (Christina School District)

  • Arguing with Evidence: Using Models in the 6th Grade Science Curriculum to Investigate Newton's Three Laws of Motion     Guide      Unit 

               Terri Eros, H.B. DuPont Middle (Red Clay Consolidated School District)

  • Problem Posing with Addition and Subtraction Word Problems in Kindergarten     Guide      Unit 

               Michelle Finegan, Richardson Park Elementary (Red Clay Consolidated School District)

  • Show Me How You Know - A Unit in Kindergarten Problem Solving     Guide      Unit 

               Jacqueline K. Gallagher, Forest Oak Elementary (Red Clay Consolidated School District)

  • Reasoning with Factors: Developing Algebraic Thinking in Middle School     Guide      Unit 

               Kimberly Givens, Gauger-Cobbs Middle (Christina School District)

  • Moving Third Graders From Guessing and Checking to Reasoning and Proof for Understanding Multiplication     Guide      Unit 

               Kathleen G. Gormley, Highlands Elementary (Red Clay Consolidated School District)

  • Providing Opportunities for Students to Reason, Justify, and Prove in the High School Calculus Course     Guide      Unit 

               Michelle Northshield, Conrad Schools of Science (Red Clay Consolidated School District)

  • Meaningful Operations with Rational Expressions through Analogical Reasoning     Guide      Unit 

               Nancy Rudolph, Hodgson Vo-Tech (New Castle County Vo-Tech School District)

  • Helping Students Justify and Reason Division as the Inverse of Multiplication     Guide      Unit 

               Moira Snider, Thurgood Marshall Elementary (Christina School District)

  • First Graders Have Something to Prove     Guide      Unit 

               Janet Zegna, Thurgood Marshall Elementary (Christina School District)

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