Kodaly in the Classroom provides teachers with a step-by-step road map for developing children's performance, creative movement, and literacy skills in an organic and thoughtful manner. Through six years of field-testing with music kindergarten teachers in the United States, United Kingdom, and Hungary (the home country of Zoltan Kodaly), authors Micheal Houlahan and Philip Tacka have developed a methodology specifically for 21st-century classrooms. Houlahan and Tacka use research findings in cognition and perception to create a system not only appropriate for the developmental stages of first through fifth grade students, but also one which integrates vertically between elementary music classes. The methods outlined in these volumes encourage greater musical ability and creativity in children by teaching them to sing, move, play instruments, and develop music literacy skills. In addition, they promote critical thinking, problem solving, and collaboration skills. Although the books use the Kodaly philosophy, its methodology has also been tested by teachers certified in Orff and Dalcroze and has proven itself an essential guide for teachers no matter what their personal philosophy and specific training might be.