1.三角形
http://www.brightcove.tv/title.jsp?title=1125863374&channel=156457828&lineup=-1
2.愛爾蘭
http://www.brightcove.tv/title.jsp?title=1127687026&channel=156457828&lineup=-1
3.九宮格與條紋
http://www.brightcove.tv/title.jsp?title=1125979071&channel=156457828
4.Stars and Four-Patch Quilt
http://www.brightcove.tv/title.jsp?title=1126042211&channel=156457828
0 意見: