This zipped file contains a Smart Notebook File and a pdf file with complete directions on using the Smart Notebook File. Students are engaged in graphing various parabolas and noticing how a and b are used to write the equation for a line of symmetry. Students conjecture with each slide. Students work with 8 slides and then repeat those 8 slides with a slightly changed equation to discover that the c values does not change the line of symmetry.

The lesson ends with four practice problems.