Fraction Comparison GeoGebra Example

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2017-11-26 23:37

This example demonstrates how to use GeoGebra for comparing the sizes of two fractions. It involves core math concepts like fractions, percentages, statistics, trigonometry, congruence, and bar charts. Construction highlights include commands like Point, CircleSector, and Sequence, along with objects such as n1, d1, n2, d2, A, t, C, H, etc. Suitable for middle school and above, ideal for visualizing fraction comparisons and data analysis.

GeoGebra Commands & Parameters

Point(y = 0) → A
Point(Segment[C + (0, 0.5), C + (0, 5)]) → H
CircleSector(C, Rotate[H, ((-2 * π) * t), C], H) → chrono
Sequence(CircleSector[(0, ceil(i / d1) - 0.5), Rotate[(0, ceil(i / d1)), ((-2 * π) * i / d1), (0, ceil(i / d1) - 0.5)], Rotate[(0, ceil(i / d1)), ((-2 * π) * (i - 1) / d1), (0, ceil(i / d1) - 0.5)]], i, 1, floor((n1 * (t - 1)))) → L_1
Sequence(CircleSector[(x(A), ceil(i / d2) - 0.5), Rotate[(x(A), ceil(i / d2)), ((-2 * π) * i / d2), (x(A), ceil(i / d2) - 0.5)], Rotate[(x(A), ceil(i / d2)), ((-2 * π) * (i - 1) / d2), (x(A), ceil(i / d2) - 0.5)]], i, 1, floor((n2 * (t - 1)))) → L_2