To paraphrase Abraham Lincoln (via Penny Ur),
You can teach some of the students all of the time, or all of the students some of the time. But you can’t teach all of the students all of the time.
Why not? Because most classes are mixed level. Some students learn faster than others, some write better than others, some are quieter than others. So the question we need to ask ourselves is…
How can we teach more of our students more of the time?
We can teach more of our students more of the time by making our mixed level classes “MIXED” (by using Materials, Instructions, eXpectations, Evaluation, Discipline).