Count multi-level building blocks are teaching tools that assist in counting and mathematical thinking cultivation. They are composed of multiple layers of detachable colored building blocks, each with a different number of grooves that can be assembled and combined. In teaching, by stacking different layers of building blocks, students can intuitively understand the accumulation of quantities. If you build 3 layers with 4 blocks per layer, perceive the sum of 3 4s. Can conduct group building competitions or be used to explain concepts of multiplication and division. It can enhance students' sense of numbers and spatial imagination, cultivate hands-on and collaborative abilities, and is a practical tool for mathematics teaching in lower and middle grades.