Reflection: Homework The Factor Theorem & Synthetic Substitution - Section 3: Classwork


I've included annotated student work, Sample A and Sample B from this homework assignment.  My notes show the sorts things I notice, consider and think of for student feedback as I correct the work.  

One interesting observation from both samples is the student use of the box or array method for factoring.  This method is familiar to many of my students, and they use it frequently.  I hope that many will begin using synthetic substitution to factor polynomials, but it appears that all students were not quite ready for that yet.


  Homework: Student Solutions
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The Factor Theorem & Synthetic Substitution

Unit 3: Cubic Functions
Lesson 8 of 13

Objective: SWBAT explain the factor theorem and how it applies to cubic functions. SWBAT use synthetic substitution to quickly evaluate a function.

Big Idea: Synthetic substitution is an excellent tool that can be used strategically to help factor polynomials and identify zeros.

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Math, Polynomial Roots, factor theorem, factoring polynomial expressions, roots (Algebra), Algebra 2, master teacher project, cubic functions, Algebra 2, function
  45 minutes
synthetic substitution
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