Books like Problem solving in mathematics by Oscar Schaaf

Easy to read with example problems to solve.

An accessible guide to mathematics designed for beginners, students, teachers, philosophers, and engineers, offering systematic exposition and practical insights into the mathematical world.

This book tells the story of Cesar Chavez and Dolores Huerta organizing migrant workers in California into a union to fight for better wages and conditions.

Math 5/4 is a Saxon Math textbook for 4th and 5th grade students, emphasizing a spiral approach that builds algebraic reasoning and geometric concepts through incremental learning and continuous review.

Math

Incrementally develops fifth‑grade mathematical skills, suitable for students in grades 4‑6, including younger learners in homeschool settings.

Problem-Solving Strategies is a unique collection of competition problems from over twenty major national and international mathematical competitions for high school students. The discussion of problem-solving strategies is extensive. It is written for trainers and participants of contests of all levels up to the highest level: IMO, Tournament of the Towns, and the noncalculus parts of the Putnam competition. It will appeal to high school teachers conducting a mathematics club who need a range of simple to complex problems and to those instructors wishing to pose a "problem of the week," "problem of the month," and "research problem of the year" to their students, thus bringing a creative atmosphere into their classrooms with continuous discussions of mathematical problems. This volume is a must-have for instructors wishing to enrich their teaching with some interesting nonroutine problems and for individuals who are just interested in solving difficult and challenging problems.