Interactive Negative Numbers Multiplication

This example demonstrates the multiplication rules for negative numbers and their visual representation on the number line or coordinate system. Core math concepts include: multiplication of negative numbers, the relationship between the signs of factors and product (positive times negative yields negative, negative times negative yields positive), and the integration of numerical and graphical thinking. Construction highlights: InputBox for entering two values, Button to trigger calculation, If command to determine result sign, Textfield to display the computation process and result; Random command generates random practice problems; text objects show complete multiplication expressions and conclusions. Suitable for early middle school math instruction and as an interactive tool for students to practice negative number multiplication rules independently.