Remember, the standards we have determined as essential are the ones we are going to spend the bulk of our time pre-assessing, teaching, assessing, re-teaching and reassessing. These are the standards we can’t imagine our students leaving our course of study or grade level without mastering.
Prioritization does not mean elimination. The other standards will still be taught. They are good to know, but a student could still progress to the next grade or course without mastering them at a high level.