Between-ness with Rational Numbers: Interactive Judgment Practice

① This example randomly generates two rational numbers and asks the user to input a number, then checks whether the input lies between the two rational numbers, visually demonstrating the comparison and between-ness of rational numbers on the number line. ② Core mathematical concepts include comparing rational numbers, intervals on the number line, and the strict definition of 'between' (greater than the smaller and less than the larger). ③ Construction highlights: using GeoGebra's Random command to generate numerators and denominators, If command to evaluate the between condition, Textfield and InputBox for user input, a button to trigger the check, and text objects for feedback; points a and b are placed on the number line with labels to support visualization. ④ Suitable for middle school mathematics when learning rational numbers, serving as an interactive classroom demonstration or self-paced practice tool to reinforce comparison and interval reasoning skills.