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When 3-Year-Old Marcus First Tries Riding a Tricycle, He Pedals

question 14

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When 3-year-old Marcus first tries riding a tricycle, he pedals it slowly and awkwardly, and he has trouble steering it where he wants it to go. Over time he becomes increasingly proficient, and eventually he can ride a tricycle with little conscious effort. Marcus's progress illustrates the role of _______ in development.


Definitions:

Vertical Ruler

A tool in word processing and graphic design applications that helps users align text, graphics, tables, and other elements.

Selection Button

A user interface element, such as a radio button or checkbox, that allows users to make choices or selections.

Yes/No Field

A data field in databases or software applications that only accepts boolean values—yes or no.

Query Design View

A graphical interface in database software that allows users to create and modify queries by arranging tables, fields, and criteria visually.

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