Critical Thinking for ChildrenCritical Thinking for Children
第一集
http://v.youku.com/v_show/id_XNTQyMDQwNDg0.html
第二集
http://v.youku.com/v_show/id_XNTQyMDIzNjA4.html
第三集
http://v.youku.com/v_show/id_XNTQyMDI0MTc2.html
第四集
http://v.youku.com/v_show/id_XNTQyMDI5NDI4.html
第五集
http://v.youku.com/v_show/id_XNTQyMDM0Nzg4.html