The accurate terminology is Self-correcting materials.
These are specialized learning tools enabling children to independently verify and amend their own work.
They foster independent learning, accountability, and critical thinking abilities.
Illustrative examples encompass jigsaw puzzles, Montessori apparatus such as knobbed cylinders, and flashcards featuring answers on the verso.
Through their use, children receive prompt feedback and learn via experimentation, enhancing their self-assurance.
These resources minimize dependence on educators or adults for feedback, cultivating self-governance and a more profound grasp of concepts.