Insights Into Algebra 1 . Workshop 5

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Workshop 5 Properties

Lesson Plans

Lesson Plans:

Introduction

Lesson Plan 1: The X Factor - Trinomials and Algebra Tiles

Lesson Plan 2: Curses and Re-Curses! It's Happening Again.

Download the Workshop 5 Guide

Lesson Plan 1: The X Factor - Trinomials and Algebra Tiles

Overview:
This lesson will teach students to factor trinomial expressions of the form x² + bx + c. Students will use algebra tiles to identify the binomial factors and the graphing calculator to verify the result. In addition, students will identify the x-intercepts and y-intercepts of each trinomial function and explore relationships between the trinomial x² + bx + c and its factored form
(x + m)(x + n).

Time Allotment:
One 50-minute class period

Subject Matter:
Factoring

Learning Objectives:
Students will be able to:

Factor trinomials of the form x² + bx + c into two binomial factors.
Identify the relationships that exist between b, c, m, and n when x² + bx + c is factored as (x + m)(x + n).

Standards:

Principles and Standards for School Mathematics, National Council of Teachers of Mathematics (NCTM), 2000.

NCTM Algebra Standard for Grades 6-8
http://standards.nctm.org/document/chapter6/alg.htm

NCTM Algebra Standard for Grades 9-12
http://standards.nctm.org/document/chapter7/alg.htm

Next: Procedures for Teachers

Insights into Algebra 1

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