DISTAR
DISTAR is an acronym for Direct Instruction System for Teaching Arithmetic and Reading, a trademarked program of SRA/McGraw-Hill, a commercial publishing company. The program is used particularly for historically disadvantaged and/or at-risk students. DISTAR Reading has been extensively expanded and rebranded by SRA/McGraw-Hill as Reading Mastery while DISTAR Arithmetic I and II are still available (DISTAR Arithmetic III is out of print). DISTAR Language I and II have been updated and renamed Language for Learning and Language for Thinking. Direct instruction is one of several highly structured methodologies for teaching elementary, middle and high school students. Siegfried Engelmann, a professor at the University of Oregon, created the Direct Instruction model.