This creative and colorful manipulative material has been specifically designed to introduce primary school students (grades 1 to 4) and secondary school students (from grade 5) to the topic of measurement units in a playful way. It is excellent for use in free work lessons and promotes independent learning. The material includes various types of games such as puzzles, dominoes, memory games, and matching tasks, for example, matching image to image, image to text, or text to text. This allows students to grasp and experience different measurement areas such as length, weight, and volume in a playful manner. A key focus is on converting measurement units: whether it involves calculating larger or smaller units, this material enables students to familiarize themselves with the conversion of measurements in a tangible way. Through the Montessori principle, the concepts of length, weight, and volume are conveyed in a practical manner, providing a valuable foundation for understanding measurement units and their application in everyday life. 40 pages, color print.