Reasoning for all students
Every student (including 'at risk' learners) should have the opportunity for thought-provoking intellectual reasoning in mathematics. Mastering rigorous content that is understandable but stimulating will permit students to advance in mathematics as far as their achievement and interest allows.
The use of activities and ways of teaching that focus on individual reasoning will help cater for all students.
Challenging all students
Being 'stretched' should not be restricted to more able students.