Locating Randomly Generated Decimals on a Number Line

This example demonstrates placing three randomly generated decimals on a number line. Learners estimate each decimal’s position, then reveal the exact locations to compare estimates. Key concepts: decimal magnitude, number‑line coordinates, random number generation, and estimation error. Construction uses Sequence to create a list of random decimals, Point to plot them, and a custom tool (Tool1) together with objects such as linedots, poly4‑poly6, and multiple text labels (text1‑text7) to visualise points, segments, and feedback. Suitable for middle‑school (grades 7‑9) mathematics lessons on decimals and number lines, and for interactive formative assessment.