In September 2018, Carnegie Learning was acquired by New Mountain Learning a education publishing firm located in St Paul, MN. Carnegie Learning had developed the Cognitive Tutor, comprehensive curricula for secondary mathematics. Established by a group of researchers, teachers and scholars from Carnegie Mellon University, Carnegie Learning was founded to apply and extend over 20 years of award-winning research in cognitive science to mathematics instruction. Carnegie Learning's mathematics courses serve students across the US and abroad offering a comprehensive approach to mathematics instruction and achievement. Using research-based cognitive models that help every student succeed in progressively more complex mathematical challenges, the Cognitive Tutor approach encompasses technology-based instruction and skill-building with text and collaborative classroom inquiry to immerse students in mathematics. Research indicates that because of the Cognitive Tutor, students are succeeding in urban, suburban and rural school districts. From Algebra I and Algebra II to Integrated Math and Geometry , serving more than 150,000 students in nearly 100 of the nations school districts, including Alaska State Department of Education, Austin, Baltimore, Chicago, Dallas, Denver, El Paso, Houston, Memphis, Miami-Dade, New York City, Pittsburgh, Portland, San Diego, San Francisco and the Department of Defense Education Activity.