The children in Tom Brown's class enjoy playing word games such as Scrabble and like to revise their writing by adding more colorful adjectives. This behavior suggests that the students have developed

Word consciousness behavior suggests that the students have developed.

Explanation:

In the above situation, the behavior by the children showcases the development of word consciousness. Word consciousness means being aware of the words and their meaning. It is the development of interest in the world of word where one wants and eager to learn about different word.

In the above situation, the children plays word games like scrabble and even learn adjectives. They build a great interest in learning of words through different medium as here by playing word games.