Written by renowned authors, Dr. Ron Larson and Dr. Laurie Boswell, *Algebra 1, Geometry,* and *Algebra 2* are a true extension of the *Big Ideas Math: Modeling Real Life K-8* series, creating one cohesive voice from kindergarten through Algebra 2.

Many of the things we do as educators have a positive effect on student learning, but which ones have the greatest impact? The Algebra 1, Geometry, and Algebra 2 program purposefully integrates five key strategies proven to have the highest impact on student achievement.

In his Visible Learning research, Professor John Hattie identified more than 250 influences on student learning and developed a way of ranking them. He conducted meta-analyses and compared the influences by their effect size — the impact the factor had on student learning.