Line graphs, line plots, and the mean
Mean as fair share: the total, split equally. Students build fractional line plots, read single and double line graphs, and compute a mean from a plot — total over count, not marks over distinct values.
Specification · for a parent or teacher
- line-plots-mean
- Advanced Math 5 · Unit 9
- Applied
- 2 of 4 — Grade 4–5. Two steps, or one idea in a story.
- 3 items
Students can
fractional line plots; single and double line graphs; mean from a plot.
Ready when
from a plot they give total, mean, and “how many above the mean.”
Formulas
Watch for
mean of a line plot computed as (number of Xs) / (number of distinct values).