When we think about inclusion for all children, it is important to look at the new (or not really so new) competency visual put out by Alberta Education.
If you look at the visual, it should be much easier to think about how a teacher can include all students. We want all of our students to be ethical and engaged. That is a given. In this century, we better be thinking ahead to how our students can develop an entreprenurial spirit so they can contribute to our society as adults. Looking at the inner part of the visual, pictured are skills that all students should gain regardless of abilities. Finally, at the centre we see literacy and numeracy which can be differentiated for all students. If we look at this focus, inclusion seems natural. If we change our focus from knowledge retention to critical thinking and problem solving, everyone is in.