Check the listing for details. Harcourt Math Teacher Modeling Kit grades 4-5. Condition: Used. Listed at 45.00 USD. This Harcourt Math Teacher Modeling Kit is perfect for kids in grades 4-5 who are interested in learning math. The kit includes everything a teacher needs to provide effective instruction and support to students. It features the Harcourt brand, which is known for its high-quality educational products. The kit is designed to help students learn math concepts and skills, and it includes a variety of educational toys and games that make learning fun and engaging. Whether you are a teacher or a parent who wants to help your child learn math, this kit is an excellent choice. I probably would have a better understanding of math if my teachers had more resources like this when I was in school. It doesn't seem used, but I bought it 2nd hand, so I can't guarantee that 100%. Everything other than cubes are in what appears to be its original plastic.