„intellectual sophistication‟ and „higher order thinking skills‟ will remain elusive.” He offered some suggestions for helping students cultivate desirable habits of mind: (a) working on problems with students, (b) being explicit about one‟s own thinking, and (c) making thought experiments an integral part of the learning experience. Rasmussen (2009, January) emphasized the need for teachers to be deliberate about initiating and sustaining particular classroom norms so as to promote certain desirable habits of mind and effect students‟ beliefs and values. The RAND Mathematics Study Panel (2003) referred to “mathematical know-how—what successful mathematicians and mathematics users do” (p. 29) as mathematical practices. They also identified mathematical practices as one of the three foci for a proposed research and development program aimed at improving mathematical proficiency among U.S. school students. The Panel stated: “A focus on understanding these practices and how they are learned could greatly enhance our capacity to create significant gains in student achievement, especially among currently low-achieving students who may have had fewer opportunities to develop these practices