Variation and distribution readiness

Read small visual data sets for spread, clusters, outliers, and typical value readiness before formal statistics.

Surface

Children may meet this skill through task formats such as Distribution spread visual compare.

Task formats

Distribution spread visual compare

Distribution spread visual compare asks children to compare visible distributions by spread, cluster, gap, or outlier.

Child actionCompare visible distributions by spread, cluster, gap, or outlier.

CheckComplete the distribution spread visual compare action.

UseSupport / Core / Transfer

ShowsCheck only

Age6-7 / 8-9 / 10-11

Practice focus

Balanced growth

Selection

Fresh independent work can move the child toward Core, Transfer, or Challenge routes; help use or confusion keeps support visible.

Help

Hints keep the child oriented to the visible structure; reveals show the path without counting as independent evidence.

Age

Age changes presentation, reading load, and dignity of the screen. Practice focus can bias compatible work without breaking prerequisites or story fit.

Story fit

episodes where the child compares groups of observations, notices common outcomes, or chooses likelihood language from visible outcomes