Watch: Arrange number cards to 20 on an ordered track. The shell keeps the complete question visible, reserves the canonical reply band, and reveals proof on the same task objects.
Misread: Child action: Arrange number cards to 20 on an ordered track.
Curriculum: Mapped to Order Numbers to 20.
Order Numbers to 20 practice with visual examples, common slips, and next-step routes.
This skill appears in Number-card order line, Ordered slot insertion, Cross-representation relation match.
Cross-representation relation match asks the player to match the same relation across representations.
Number sense and place value
Number-card order line asks the player to arrange number cards to 20 on an ordered track.
Number sense and place value
Ordered slot insertion asks the player to insert or choose the missing card in an ordered row.
Number sense and place value
Fresh independent work can move toward Core, Transfer, or Challenge routes; help use or confusion keeps support visible.
Hints keep attention on the visible structure; reveals show the path without counting as independent evidence.
Presentation can reduce reading and interaction load without changing the selected skill. Practice focus can bias compatible work without breaking prerequisites or story fit.
