Common Core Standards say we should teach with rigor. But how do you know your instruction is rigorous enough? Through many district level workshops, my fourth grade design team has come up with a workable definition along with an easy to use worksheet that guides you through several complexities targeted to ensure rigorous instruction. I have also included an example lesson. As for the new Lexile stretch bands, I've added a reference sheet and other useful aides. Please feel free to share your thoughts and ideas about this product.