This phenomenological study investigated the differentiation techniques implemented for gifted
and high ability learners by fifth grade general classroom mathematics instructors utilizing the
Math in Focus (Great Source/Houghton Mifflin Harcourt, 2009) Singapore Mathematics
program in a suburban school district. To provide an understanding of the differentiation process
currently being implemented by general classroom mathematics teachers, six participants
completed an open-ended questionnaire and two representative participants were interviewed,
observed, and asked to provide artifacts for analysis in the study