thai students sometime will not be able to grasp the meaning of unfamiliar or unknown words through written context in order to understand or know the meaning of the words, the skill that they require is word analysis. Since many English words
are formed by combining word parts; roots, prefixes, and together and each part has its own meaning. Therefore, the meaning of an unfamiliar word can be figured out by breaking it down into small elements. For example, the root -dict- from
Latin means 'to say' you might be able to figure out the meaning of many words (contradict, dictate diction, edict predict, and so forth). By learning word parts the learners can unlock the the meaning of many more words more words than by studying single meaning. in this unit we will focus on the word part since it is a method of building the learners ' vocabulary.