测量数据线图
Measurement Line Plots
制作线图，用分数单位（1/2、1/4、1/8）展示测量数据；并利用线图中的数据解决分数加减法问题。
Make a line plot to display measurement data in fractions of a unit (1/2, 1/4, 1/8); solve problems involving addition and subtraction of fractions using line plot data
学习证据 / Evidence
- 以1/8英寸为增量，制作种子生长测量数据的线图。
- 利用线图找出最长和最短样本之间的差值。
- 通过将分数测量值相加，计算线图中所有物品的总长度。
- Create a line plot of seed growth measurements in 1/8-inch increments
- Use a line plot to find the difference between the longest and shortest specimens
- Calculate the total length of all items in a line plot by adding the fractional measurements
评估问题 / Assessment
如果{{name}}把毛毛虫的长度按英寸的分数记录下来，并在线图上标出，他/她能否通过将线图中的分数相加，算出三条毛毛虫的总长度？
If {{name}} records caterpillar lengths as fractions of an inch and plots them on a number line, can they work out the total length of three caterpillars by adding the fractions from the plot?