# Saxon Math: Algebra 2 (Section 3)

##### This Saxon Math: Algebra 2 (Section 3) unit also includes:

In this third of a twelve-part series, the focus moves from using matrices to solving systems of equations with substitution and elimination, including more than two dimensions and variables in equations, and analyzing statistical data. Just like the previous two lessons, technology is still a primary teaching tool here, from the graphing calculator tips for data manipulation through the use of matrices in practice problems for solving systems. Another fabulous set of lessons to use together as curriculum replacement, or to harvest problems and individual modules for supplementation.

##### Instructional Ideas

• When working through the lessons on systems of equations, have learners create consumer math problems from real life modeled on the problems in the section
• Have the class find data sets of personal interest and apply the calculator steps from the labs to investigate measures of central tendency
• Challenge learners to find examples of intersecting planes of all three types, as shown in the final lab, from real life or online renderings
##### Classroom Considerations

• Those pupils weak in solving systems of equations might struggle when a third variable is added to the mix, as in the last few lessons of the section. Having remediation prepped ahead of time for these learners might ease the transition
• While many of the lessons are modular and easily integrated into existing curriculum, the practice problems often spiral in previous concepts from the section. This might require teacher editing or modification when assigning
• Calculator labs assume that the TI-83/84/85 suite of calculators is being used
##### Pros

• Application problems and diagrams make concepts much clearer and more concrete
• Practice problems spiral in concepts from previous lessons
• Statistical analysis labs carried beyond reporting and into synthesis of results
• Technology used throughout section as a tool for understanding, not as a solver of problems