This unit introduced the four basic language skills, namely receptive skills which include reading and listening and productive skills which include speaking and writing...
Teaching the past tenses system the teacher should pay attention not only to the forms and usages peculiarities, but provide the effective methods for irregular verbs memorizing, which can became the stumbling-block, especially for students, whose the mother tongues grammar is really different from the English one...
I found the section on Passive voices to be most interesting and informative, however the section on Phrasal Verbs I found to be a challenge to understand...
Unit 20 talks about the common problems encountered in an EFL class such as big classes with different English levels, the use of the students' Native language instead of practicing speaking in English, and difficulties in listening to English speakers...
Unit 13 is a fairly detailed presentation of the teaching of English pronunciation and phonology, covering such concepts as intonation, stress, and rhythm, and how to best teach them...