论文部分内容阅读
复习目标1.图形的认识与测量。(1)图形的认识。(1)认识直线、射线、线段,知道直线、射线、线段的区别。(2)认识垂线与平行线,会用直尺和三角板画垂线和平行线。(3)认识常见的几种角,知道周角、平角、钝角、直角、锐角之间的大小关系。(4)掌握长方形、正方形、平行四边形、三角形、梯形、圆的主要特征,会用圆规画圆。(5)掌握长方体、正方体、圆柱和圆锥的特征,认识长方体、正方体和圆柱的展开图。
Review goals 1. Graphics understanding and measurement. (1) graphics understanding. (1) recognize the straight line, ray, line segment, know the difference between line, ray, line segment. (2) recognize the vertical and parallel lines, will use ruler and triangle draw vertical and parallel lines. (3) Know a few common corners and know the relationship between the circumference, the angle, the obtuse angle, the right angle, and the acute angle. (4) master the main features of rectangular, square, parallelogram, triangle, trapezoid, circle, will use the compass to draw a circle. (5) grasp the characteristics of cuboids, cuboids, cylinders and cones, to understand the expansion of cuboids, cuboids and cylinders.