Oscar Schaaf books & textbook

Problem Solving in Mathematics / Blackline Masters / Grade 4 (Lane County Mathematics Project)

Dale Seymour Pubn /1983T Paperback / 410 Pages
isbn-10: 0866511814 / isbn-13: 9780866511810

Lane County Mathematics: Problem Solving In Mathematics, Grade 7

Richard Brannan Maryann Debrick Judith Johnson Glenda Kimerling Scott McFadden Jill McKenney Oscar Schaaf Mary Ann Todd

Dale Seymour Publications /1983T Paperback / 288 Pages
isbn-10: 0866511849 / isbn-13: 9780866511841

Problem Solving in Mathematics: Algebra (Lane County Mathematics Project, Grade 9)

Richard Brannan Oscar Schaaf

Dale Seymour Publications /1983T Hardcover / 316 Pages
isbn-10: 0866511865 / isbn-13: 9780866511865