Exploring Two-Digit Whole Numbers with Sequences and Histograms

① This GeoGebra example dynamically demonstrates the generation and distribution of two-digit whole numbers, using sequence commands to build number lists and visualize frequency distributions. ② Core mathematical concepts include sequences, place value decomposition (tens and ones), histograms, and geometric mean, with extensions to difference, slope, integral calculus, and series. ③ Construction highlights: the Sequence command generates two-digit numbers; objects m, tens, ones represent the number, tens digit, and ones digit; list1 and list2 store the sequence and frequency data; text1 and text2 display values or annotations; a histogram visualizes the distribution. ④ Suitable for upper elementary to middle school students learning integers, sequences, and statistical charts, and useful for high school review of place value or as an intuitive bridge between discrete and continuous concepts in introductory calculus.