Self-Test on Classification of Numbers: Natural, Integer, Rational, Real, Comple

This interactive GeoGebra example is a self-test tool for classifying numbers into different sets: natural numbers (N), integers (Z), rational numbers (Q), real numbers (R), and complex numbers (C). It visually demonstrates the hierarchical inclusion of number sets using nested circles or regions, helping learners understand which numbers belong to which category. The construction uses GeoGebra commands such as Point, Circle, If, Length, and Midpoint to create the circular regions and dynamic text labels (textN, textZ, textQ, textR, textC) that display the classification result. Interactive elements like step2, mark, correct1, and wrong1 provide immediate feedback for self-assessment. This resource is suitable for middle school and high school students learning number systems, and can be used for classroom practice or individual review.