In the lesson linked below, students will discover that systems of equations can have one solution, no solution or infinitely many solutions by looking at the graphs of several different systems. Students will verify solutions by using substitution and continue to develop and understanding of how to write and solve word problems involving systems of
equation.
Lesson guidelines: http://auhsdmath.pbworks.com/w/file/fetch/60768646/3_0Teach_Dir_Systems%282%29.pdf
Graph and Verify handout: http://auhsdmath.pbworks.com/w/file/fetch/60768647/3_1GraphandVerify%282%29.pdf
Hats off handout: http://auhsdmath.pbworks.com/f/3_2HatsOff%281%29.pdf