Origomath 5th Grade Teacher Sourcebook collection provides a comprehensive, step-by-step approach to computation. This professional resource set includes the binder, the Main Teacher Sourcebook, the Program Blackline Masters, and 12 individual unit modules covering essential mathematical concepts from multiplication strategies and decimals to common fractions and division problems. Developed by James Burnett and Calvin Irons, these materials offer detailed mathematical background, unit overviews, and specific mathematical language to support effective classroom instruction. The curriculum is designed to build mental and written methods through structured sessions, making it an invaluable tool for educators focusing on core 5th-grade math standards. Complete and with fast shipping!