Week:20 Preparing date:27/12/2010 Period: optional lesson Teaching date:31/12/2010 OPTIONAL LESSON UNIT9.READING • AIMS: After the lesson, the Ss will be able to: - understand more about whales. - Read for specific information. - Improve sub- skills: writing, listening, speaking. • TEAHING AIDS: Blackboard, handouts. • PROCEDURE: I. STABILIZATION: Greet the class and check students’ attendance. II. CHECK- UP: No. III. NEW LESSON: Teacher’s activities Students’ activities 1. WARM- UP: Play the game Find out the key word. - Divide class into 2 groups to play the game. - Which group that has the right answer more quickly will be the winner. - Listen to the teacher. - Play the game. Suggested answers: 1. world 2. challenges 3. marine 4. jellyfish 5. biodiversity key word: WHALE - Questions: 1. The famous song of Michael Jackson: “Heal the …….” 2. Today’s scientists have overcome many of the ………… of the depth by using modern devices. 3. …………… plants and animals fall into 3 major groups. 4. Look at the picture and tell the mane of this animal. 5. Unless the ………… were maintained, marine life would be at stake. - give feedback. - Declare the winner. 2. PRACTICE: - Deliver the hand outs to the Ss. - Ask them to work in pairs to do ask and answer the questions. - Go around to provide help if necessary. - Call on some pairs to ask and answer the questions. - Call on another Ss to give comment. - Give feedback and correct answers. HAND-OUT’S CONTENT: DO WHALES SLEEP? - Work in pairs. - Ask and answer the questions. - Give comment. Suggested answers: 1. Yes, they do. 2. To make sure the whale breathes and alerts the whale to any danger in its environment 3. It means that we breathe without thinking about it. 4. B 5. One interesting finding is that whales do not appear to have rapid eye movement sleep. Quite unlike us, whales "sleep" by resting one half of their brain at a time. While one half of the brain stays awake to make sure the whale breathes and alerts the whale to any danger in its environment, the other half of the brain sleeps. We humans are involuntary breathers, meaning we breathe without thinking about it. Whale’s sleep is complex and still being studied. One interesting finding is that whales do not appear to have rapid eye movement sleep that is characteristic of humans. This is the stage in which most of our dreaming occurs. Note: Involuntary ~ unconscious: without conscious control. Questions: 1. Do whales sleep? ………………………………………. 2. What does whale’s one half of the brain stay awake for? ……………………………………… ……………………………………… 3. According to the passage, “ We humans are involuntary breathers” , what does it mean? ……………………………………… ……………………… 4.Whale’s sleep is complex. The word that has the opposite meaning is: A. interesting B. simple C. complicated D. beautiful 5. What is one interesting finding about whale’s sleep? ……………………………………… IV. HOMEWORK: - prepare the next lesson: unit9. writing. V. SELF- EVALUATION: . Week:20 Preparing date:27/12/2010 Period: optional lesson Teaching date:31/12/2010 OPTIONAL LESSON UNIT 9. READING • AIMS: After the lesson, the Ss will. whale’s sleep? ……………………………………… IV. HOMEWORK: - prepare the next lesson: unit 9. writing. V. SELF- EVALUATION: