1.
California Mathematics Grade 5 (Concepts, Skills, and Problem Solving) (Concepts, Skills, an...
by Patricia Frey, Arthur C. Ho...
ISBN: 9780021058532
2.
Math Connects: Concepts, Skills, and Problem Solving, Course 1, Vol. 2, Teacher Edition
by Ph. D. Roger Day, Ed. D. Pa...
ISBN: 9780078923418