The 1st Math PROBLEM SOLVING BIG BOOK (Teacher’s) is a comprehensive collection of math resources designed for students in 1st grade and elementary school. Published by Macmillan/McGraw-Hill in 2011, the book features real-world problem-solving activities focused on measurement, data analysis, geometry, algebra, and more. The English-language materials are organized in a ring/wire-bound format for easy use in the classroom.