# Common core

This is a guest post by Morgan Saxby, a fifth grade teacher in Chesterfield County, Virginia, who works with Illustrative Mathematics. Morgan has begun writing lesson plans to accompany published mathematics tasks. A clear step after developing high-quality mathematical tasks is to develop accompanying lesson plans. I wrote seven lesson plans to accompany published tasks, all of which I tested in my classroom. My goal was to write lesson plans that guided students to the level of thinking required by both the standards and the practices.