Answer:
Word book
Explanation:
Word walls, word bank, work book all gives students the chance to learn and develop in writing and speaking, as they are able to learn a d try out new words. The word wall allows students to learn and make use of new words in sentences. Word banks are also similar as they contain list of words which are peculiar to a certain subject which could aid vocabulary development.
However, a word book seems more comprehensive as it entails the meaning and explanation of words, the word boo is designed as could be compared to a dictionary which gives simplified details of different words.