[quote author=Fu-Kwun Hwang link=topic=1155.msg4510#msg4510 date=1247581342]
The above web page include two animation: refraction/reflection and thin lens refraction.
However, for the refraction/reflection part. I would suggest you to check out [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=347.0]Intensity of reflected s-wave/p-wave[/url].
When light enter into another media, reflection will always occurs.
The animation only show either reflection or refraction. It might introduce mis-concept about the light.

My thoughts:
[url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=347.0]Intensity of reflected s-wave/p-wave[/url] is indeed a superb approximation of the real life physics.

My Stand:
I agree with you that it is not appropriate to teach in binary reflection/refraction and may introduce mis-concept about the light.

My position:
NTNUJAVA Virtual Physics Laboratory Java Simulations in Physics: Enjoy the fun! is my favorite website for engaging in inquiry learning. That's why i am remixing and contributing back here. I learn a lot too.

My unfinished work:
I am in the process of refining this Ejs open source converging & diverging Lens object image high school java applet.