1994 Crossing The River with Dogs and Other Mathematical Adventures: Problem Solving Strategies -- Teacher's Resource Book and Answer Key (Paperback)(11"x8.5"x0.75") by Ted Herr & Ken Johnson ***ISBN-13: 9781559530699 ***Condition: Good Used--minor sticker peeling mark on cover ***382 Pages @math30.3;0>keyc.math @031524v
