Mathematics
Measurement
Procedural
8–9 yrs
Halves and quarters (age 8+)
二分之一与四分之一（8岁以上）
Description
Generate measurement data by measuring lengths to the nearest half and quarter inch; display the data on a line plot with a scale marked in whole numbers, halves, and quarters
Mastery Evidence
- Measure five objects to the nearest 1/4 inch
- Create a line plot showing the lengths of classmates' pencils in half-inches
- Read a line plot and answer questions about the data
Assessment Prompt
If your child measures ten pencil lengths to the nearest quarter inch, can they record the data and plot it on a number line split into quarters — then spot which length appears most?
