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凸透鏡 Convex Lens
Author:
Alex CHIK
Drag the grey/ red points to change positions of the object. Drag the black point to change source of light.
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
Tutorial: Create lists of numbers and objects
alg2_05_05_04_applet_exp_fxn_flvs
Parallelograms: Quick Investigation
alg2_05_05_01_applet_exp_flvs
Variation Theory Parallelogram Proofs
Discover Resources
Kwadratiese_funksies-Die_effek_van_a,p_en_q_met_x-afsnitte
MIdpoints and Parallel Lines (II)
Unit 7 Advanced Geometry Project - Tristan and Billy
Untitled
Project 1.4
Discover Topics
Probability
Translation
Area
Integral Calculus
Continuity