10 Instructional Shifts that Improve Student Learning This link is to a summary of the book Accessible Mathematics: 10 Instructional Shifts that Raise Student Achievement by Steven Leinwand. His number one shift is "Incorporating ongoing review into every day's lesson." I think this is extremely important because brain research shows that when a new dendrite is formed it needs to be stimulated constantly or if it's not used our brain "prunes" it, which is like deleting the information.