Bar Model Comparison

Bar Model Comparison practice with teacher guidance, common slips, and next-step routes.

Surface

This skill appears in Bar-model additive-comparison entry.

Task formats

Bar-model additive-comparison entry

Bar-model additive-comparison entry asks the player to read the additive comparison bar model and enter the missing amount or exact difference.

ActionRead the additive comparison bar model and enter the missing amount or exact difference.

CheckComplete the bar-model additive-comparison entry action.

UseSupport / Core / Transfer

ShowsCheck only

PresentationCompact / Standard / Extended

Practice focus

Math facts / times tables / Word problems are confusing

Selection

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

Help

Hints keep attention on the visible structure; reveals show the path without counting as independent evidence.

Presentation

Presentation can reduce reading and interaction load without changing the selected skill. Practice focus can bias compatible work without breaking prerequisites or story fit.

Story fit

episodes where the player must preserve a visible quantity model across more than one operation