Mathematical Reasoning in the Elementary Grades: Number Systems Required for undergraduates seeking licensure in elementary education, early childhood education,special education, or deaf studies. Focuses on number systems, whole number, decimal and fraction concepts and operations, and number theory. Non-Wheelock students by signed permission only. Does not satisfy CAS Divisional Studies or Math/Stat major. 4 cr. 1st sem. Effective Fall 2019, this course fulfills a single unit in each of the following BU Hub areas: Quantitative Reasoning I, Oral and/or Signed Communication, Teamwork/Collaboration.