数学．粤语 进行线上作业批改及回馈 郭文钊老师 高小 数学 更多 Distance-Time-Graph;Feedback;teams;one-notes;online-teaching;online-teaching-pedagogy;Pear-Deck;pedagogy;interactive-lesson;Immediate-feedback;
幼儿教育．粤语 巴士司机（帮助我们的人） 李嘉颖 幼儿教育 更多 K1;mathematics-early-childhood-education;Counting;People-who-Help-us;Bus;bus-driver;Taking-Bus;Transport;
数学．粤语 两次退位减法 梁鸿 初小 数学 更多 online-teaching;number-blocks;Visualization;Free-educational-software;Interactive-learning;Number;NUMBER-PIECES;Place-value;Numbers-of-three-digits;Immediate-feedback;Addition-and-subtraction;Abdicated-subtraction;
