[5] Nathalie Sinclair, Nicholas Jackiw.Modeling Practices with The Geometer’s Sketchpad[J].Modeling Students' Mathematical Modeling Competencies. 2013,10:541-554.
[6] Alfinio Flores.The Kinematic Method and the Geometer's Sketchpad in Geometrical Problems[J].International Journal of Computers for Mathematical Learning. 1997,01:1-12.