Sometimes, it is not necessary to use this model, because if the teacher has taught at, for example, have to check the terminology from the binary version dik to find out the meaning of words and the correct pronunciation.
Sometimes it is not necessary to use this model. If teachers are prepared to teach a good example in terms of the Dictionary. To find the meaning of words and the correct pronunciation.
Sometimes it doesn't need to use this model. If teachers are teaching preparation as well as the check vocabulary from the dictionary. In order to find the meaning of vocabulary and correct pronunciation.