数学．粤语 制作及使用仰角器 吕振斌 初中 数学 更多 Angle-of-elevation;Clinometer;Distance-height;Making-and-usage;online-teaching;Peer-cooperative-learning;Stationery-materials;Surveying-equipment;Trigonometry;Shape-and-Space;Measures;
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;
数学．粤语 毕氏定理证明 杨丽妍 初中 数学 更多 Feedback;Free-educational-software;GeoGebra-application;inquiry-based-learning;Interactive-learning;Measures;online-teaching;Pictorial-proof;Pythagoras-theorem;Right-angled-triangles;Shape-and-Space;Visualization;
