RHS Weekly Lesson Plan Template –Coordinate Algebra Dates Oct 20 Monday MCC9‐12.A.REI.6 Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables. Oct 21 Tuesday MCC9‐12.A.REI.6 Solve systems of linear equations exactly and approximately (e.g., with graphs), focusing on pairs of linear equations in two variables. Essential Question/ Key Question How do I solve a system of linear equations graphically? How do I solve a system of linear equations graphically? Lesson Opener Graph the equations on the coordinate plane. Is the ordered pair a solution to the system? Procedures/Strateg ies Review how to graph equations -Guided Notes: How to solve a system of equations graphically? (video online classroom) -Practice solving by graphing Time 10 Lesson Summary Time Assessment/ Evaluation Standard Time Oct 22 Wednesday MCC9‐12.A.REI.5 Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions. How do I prove that a system of two equations in two variables can be solved by multiplying and adding to produce a system with the same solutions? Graph the system of equations. Oct 23 Thursday MCC9‐12.A.REI.5 Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions. How do I prove that a system of two equations in two variables can be solved by multiplying and adding to produce a system with the same solutions? Solve the systems using substitution. Oct 24 (Absent) Friday MCC9‐12.A.REI.5 Prove that, given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions. How do I prove that a system of two equations in two variables can be solved by multiplying and adding to produce a system with the same solutions? Solve the systems using substitution. -Go over Homework -Practice page C/Problem solving (guided/board work) - Graphing systems practice(partner) -Solving systems by graphing Review -Graphing Quiz -Notes: solving systems by substitution (video online classroom) -Practice B/C (partner) -Go over homework -Practice Packet +solving systems by substitution (independent) -Practice substitution -Review substitution method List 5 important things to remember when solving by graphing. Observation of student work Answer essential question. Go over practice pages Letter to an absent student. Substitution ticket out the door Observation of student work Graphing Systems quiz Observation of student work TOD formative assessment PowerPoint/video Practice Pages Practice pages PowerPoint, quiz Practice Sheets Practice pages PowerPoint/video Practice Pages, TOD 10 Time 20 30 Materials Needed