理解分数
Understanding fractions
制作线形图来展示以分数单位（1/2、1/4、1/8）表示的测量数据；利用分数运算解决涉及线形图中数据的问题（例如将总量平均重新分配）。
Make a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8); use operations on fractions to solve problems involving data in line plots (e.g. redistribute total equally)
学习证据 / Evidence
- 制作一张线形图，显示精确到八分之一英寸的长度测量结果。
- 利用线形图，通过分数加法求出所有测量结果的总和。
- 解答问题：如果把这些液体的总量平均重新分配到所有烧杯中，每个烧杯会得到多少？
- Create a line plot showing lengths measured to the nearest 1/8 inch
- Use the line plot to find the total of all measurements by adding fractions
- Solve: 'If the total liquid were redistributed equally among all beakers, how much would each have?'
评估问题 / Assessment
如果{{name}}测量了几件物体的长度，结果精确到四分之一英寸或八分之一英寸，并在数轴上标出这些测量结果，那么他们能否用这些数据来算出总数或平均分配数量？
If {{name}} measured the lengths of several objects to the nearest quarter or eighth of an inch and plotted them on a number line, could they use those measurements to work out totals or share amounts equally?