As described by the Kendall Hunt Illustrative Math website:
This two-course curriculum was designed by the team at Illustrative Math to provide an accelerated pathway to Algebra I. This curriculum still covers all of the standards in Illustrative Math 6-8 and compacts them into a two-year curriculum meant to be covered during 6th and 7th grade. The pace is faster than the standard Illustrative Math 6-8 curriculum and nothing is skipped.
ASSISTments now has all of the Illustrative Math 6-8 accelerated:
Additionally, all unit assessments (versions A & B) are available by request by emailing us at: firstname.lastname@example.org.