Giáo án Tiếng Anh 6 unit 14: Making plans

GIÁO ÁN ENGLISH Date of preparing: 20 / 03/ 2012 Date of teaching: 24 / 03 / 2012 Unit 14: MAKING PLANS Period 83: A – Vacation destinations (A1,2) I Aims - Ss understand the content of the dialogue about addendry for vacation and answer the questions axactly - To develop Ss’skills II Objectives By the end of the lesson, Ss will be able to make the new dialogue about some places which sb is going to visit III.Ways of working - T - WC, work in pair, individual work IV Materials Projector, cassette, tape V Anticipated problems VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (5’) Ask Ss to retalk about “to be” following the personal pronouns and make sentences with them Call on Ss to speak out Show some pictures about the interest of places Present the new lesson New lesson (37’) Activities * Presentation - Show the color picture of A1 and ask Ss to guess where it is, and then ask them to describe it - Introduce: As you know this is a picture of Hue Citadel It is in the center of Viet Nam The city is famous for Huong River, Ngu Mountain, the violet ao dai, and Bai Tho hat a wonderful destination for tourists In this summer vacation Lan is going to visit Hue She is talking to Ba Contents I.A1: Listen and repeat Then practice Listen and repeat Then practice the dialogue with a partner New words - Make (v) làm, lập - Plan (n) kế hoạch - Making plan (v) lập kế hoạch - Vacation (n) kỳ nghỉ - Destination (n) điểm đến - Summer vacation (n) kỳ nghỉ hè thăm, tham quan - Visit (v) (lại) - Stay (v) cô, dì, thím, mợ - Aunt (n) GIÁO ÁN ENGLISH about it Let's start to know what they are talking about - Play the tape – Ss listen and find out the new words and new grammar - Introduce some new words - Guide Ss to read new words - Let them read new words in silence - Call some Ss to read new words - Check Ss’ reading - Guide Ss to use "Tobe going to"and give some examples - Explaining - Get Ss to set up the form - Get Ss to take note the use of "Tobe" - Get them to give some examples * Practice - Play the tape – Ss listen and repeat - Guide Ss to read part A1 - Get Ss to read it in pairs - Call some pairs to read aloud - Check Ss’ reading - Get Ss to work in pairs, reread part A1, answer the questions in part A2, and then compare the answer with each other (G5’) Group1,2: a,b Group 3,4: c,d - Correct their mistakes - Show the information and guide Ss to practice part A3 - Get Ss to work in pairs to make similar dialogues - Call some pairs to practice before the class - Uncle - How long - For - Citadel - Beach (n) chú, bác, cậu (pre) cho, khoảng (n) cố đô (n) bãi biển Structures * Tobe going to: sẽ, dự định (use for intention) Eg: I am going to visit Hue S V I am going to stay with my aunt and uncle Wh + tobe + S + going to + V … ? → S + tobe going to + V + …… * Tobe = am, is, are * “Tobe going to” express the subject’s intention to perform an certain future action 3.Practice - Listen and repeat - Practice the dialogue with a partner II.A2: - Answer a Lan is going to visit Hue b She is going to stay with her aunt and uncle c She is going to stay in Hue for a week d She is going to visit the citadel III.A3: - Write What are you going to this summer vacation? - Visit Ha Noi Where are you going to stay? - In a hotel How long are you going to stay? - For four weeks GIÁO ÁN ENGLISH - Correct What are you going to do? - Visit Dong Xuan Market, Ho Chi Minh Mausoleum * Production * Further practice - Give some words and get Ss to a Go to the movie / weekend make sentences with "Tobe I am/ We are/ She is…… going to go to the going to" movie on the weekend - Repeat the main content of the b Visit / Ha Noi / summer vacation lesson I am/ We are/ She is…… going to visit Ha Noi this summer vacation 4.Home work: (2’) - Ask Ss to write a dialogue about sb’s plan and translate A1 - Prepare period 84: Unit 14: A4-6 GIÁO ÁN ENGLISH Date of preparing: 26 / 03/ 2012 Date of teaching: 28 / 03 / 2012 MAKING PLANS Period 84: A – Vacation destinations (A4-7) Unit 14: I Aims - Ss understand the content of the passage to talk about some places which sb is going to visit - To develop Ss’skills II Objectives By the end of the lesson, Ss will be able to talk about some places which sb is going to visit III.Ways of working - T - WC, work in pair, individual work IV Materials Projector, cassette, tape V Anticipated problems VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (5’) Ask Ss to exercise and call Ss to on the board and others on their note Question: Arrang the words or the phrases to make the meaning sentences You/ are/ do/ is/ to/ going/ What? is/ he/ going/ stay/ to/ Where? are/ How long/ going/ to/ they/ stay? stay/ for/ going/ are/ a week/ They/ to Correct and give Ss the mark Present the new lesson New lesson (37’) Activities Contents GIÁO ÁN ENGLISH * Presentation - Introduce: Phuong and Mai are going on vacation this summer; they are going to visit many places Let's start our lesson to know where they are going to visit - Play the tape – Ss listen an find out the new words - Present new words - Guide Ss to get meaning of new words - Have Ss read three times or more - Call some Ss to read new words - Check Ss’ reading - Get Ss to repeat the form and use of "Tobe going to"and find out the sentences in the passage - Explain the use way * Practice - Play the tape part A4 once again - Guide Ss to read it - Get Ss to read it in silence - Call some Ss to read - Correct I A4: Listen and repeat New words - First (adv) - Then (adv) - Temple (n) - Next (adv) - After that (adv) - Finally (adv) sau đền tiếp theo, sau 2.Structures * Tobe going to: - Phuong and Mai are going on vacation this summer - They are going to visit Ha Long Bay Practice - Listen - Read II.A5: - Practice TABLE - Show the information in part A5a and guide Ss to make a table of note about different places Phuong and Mai are going to visit in their vacation - Get Ss to work in groups to complete the table, and then compare the result with each other - Call some Ss to give out the answer, some others go to the board and write - Correct Places to visit Where to stay How long Activities Ha Long Uncle's house days Visit the bay Ha Noi Hotel days See Ngoc Son Temple Hue Friend's house days See the citadel GIÁO ÁN ENGLISH - Get Ss to exercise "True or False" - Get them to exercise in groups and then compare the result with each other - Correct - After that ask Ss to talk about Phuong and Mai's vacation * Production - Show A6 and repeat the main content of the lesson - Ask Ss to retalk the form of “be going to” - Get them to make sentences with "Tobe going to" Nha Trang Friend's house days Visit friends HCM Grand's house One week Visit grands *True or False a Phuong and Mai's uncle lives in Ha Noi b Phuong and Mai are going to visit Ha Noi first c They are going to stay with their aunt when they visit Ha Long bay d They are going to visit Hue after visiting Ha Noi e They are going to visit HCM City after the other places a = F; b = F; c = T; = T; = T Eg: Phuong and Mai are going to visit many places on their vacation First, they are going to visit Ha Long and stay there for days, they are going to stay with their uncle and aunt III.A6: - Remember * Tobe going to (+) S + am/ is/ are going to + V… (-) S + am/ is/ are not going to + V… (?) Am/ Is/ Are + S + going to + V….? Eg: I’m going to visit Ha Noi Where are you going to stay? How long are you going to stay? ………………………… 4.Home work: (2’) - Ask Ss to make sentences with the form in A6 - Prepare period 85: Unit 14: B1-3 _ GIÁO ÁN ENGLISH Date of preparing: 26 / 03/ 2012 Date of teaching: 30 / 03 / 2012 Unit 14: MAKING Period 85: B – Free time PLANS plans (B1-3) I Aims - Ss understand a short conversation of free time plans - To develop Ss’skills II Objectives By the end of the lesson, Ss will be able to write and speak about their free time plans III.Ways of working - T - WC, work in pair, individual work IV Materials Projector, cassette, tape V Anticipated problems VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (5’) Show some sports – ask Ss look at and call the name of them Correct – get Ss to read and make sentences or answer questions about them Use “be going to” Eg: I am going to play soccer What are you going to do? + What are you going to after school? (I'm going to play badminton) + Where are you going to go this summer vacation? (I'm going to visit my grandmother) + What are you going to this evening? (I'm going to watch TV) Present the new lesson New lesson (37’) Activities Contents * Presentation I B1: Listen and repeat Then practice - Introduce content of new lesson: with a partner in this period we will know about New words Hoa, Tuan, Nga, and Ba's free time plans - Tonight (n) tối - Show the dialogue in B1 with - Tomorrow (n) ngày mai GIÁO ÁN ENGLISH some blanks with pictures - weekend (n) (n) ngày cuối tuần - Ask Ss look at them and guess - See (v) xem words to fill - a match soccer (n) một trận bóng - Play the tape – Ss listen and Fill (n đá in the blanks - a movie ) bộ phim - Introduce new words explain the - What about you? Thế bạn meaning of them - I don’t know Mình - Guide Ss to read - Let them read new words in silence - Call some Ss to read new words - Check Ss’ reading Grammar * Tobe going to - Get Ss to repeat the form and use Eg: of "Tobe going to" - What are you going to tonight? I am going to my homework - What about you? I’m going to play badminton * Practice 3.Practice - Play the tape – Ss listen and - Listen and repeat repeat - Then practice with a partner - Guide Ss to read it - Get them to read it in pairs in What is Lan going to tonight? silence - She’s going to her homework - Call some pairs to read part B1 What is Lan going to tomorrow? - Correct - She’s going to visit her friends - Ask Ss to answer some questions Then they are going to see a movie - Call on Ss to answer and correct What about Tuan? - Tuan is going to play badminton tonight Tomorrow he’s going to watch a soccer match - Show B2 with a modern dialogue II B2: Prepear two dialogues with a underline some words, and guide partner Then write them in your exercise Ss to make new dialogues book - Get Ss to work in pairs to make Tuan: What are you going to similar dialogues tonight? - Call some pairs to practice before Lan: I'm going to my homework the class Tuan: What are you going to - Check their mistakes tomorrow? Lan: I'm going to visit my friend GIÁO ÁN ENGLISH a Tonight: see a movie Tomorrow: go walking S1: What are you going to tonight? S2: I'm going to see a movie S1: What are you going to tomorrow? P2: I'm going to go walking b Tonight: help my mom Tomorrow: play volleyball S1: What are you going to tonight? S2: I'm going to help my mom S1: What are you going to tomorrow? S2: I'm going to play volleyball - Introduce part B3 III.B3: - Listen and read Then practice - Show the content of B3 and play with a partner the tape – Ss listen - Listen and read - Guide Ss to read - Practice with a partner - Get them to read it in pairs - Call some pairs to read What is Ba going to on the - Check their mistakes weekend? Ask them to answer some - He’s going to see a movie questions Which movie theater is Ba going to see? - He’s going to see at Sao Mai movie theater What is Ba going to see? - He is going to see Jurassic park * Production * Make similar dialogues - Give Ss to practice with real Eg: Tonight: watch TV situations and ask Ss to make Tomorrow: listen to music dialogues like part B1 and B3 On the weekend: go to the zoo - Call on Ss to speak out S1: What are you going to tonight? - Correct S2: I'm going to watch TV - Repeat the main content of the S1: What are you going to lesson: "Tobe going to" tomorrow? S2: I'm going to listen to music S1: What are you going to on the weekend? S2:g I'm going to go to the zoo GIÁO ÁN ENGLISH S3: S4: S3: S4: S3: S4: What is she/he going to tonight? She/He is going to watch TV What is she/he going to tomorrow? She/He is going to Listen to music What is she/he going to on the weekend? She/He is going to go to the zoo Home work: (2’) - Learn by heart all new words Read B1,3 again and translate the dialogues Write a dialogue in your exercise book - Prepare period 86: B4-7 GIÁO ÁN ENGLISH Date of preparing: 31 / 03/ 2012 Date of teaching: 02 / 03 / 2012 Unit 14: MAKING Period 86: B – Free time PLANS plans (B4-7) I Aims - Ss remind the old knowledge about attention which sb is doing in the future - To develop Ss’skills II Objectives By the end of the lesson, Ss will be able to write and speak about their free time plans 1) Vocabulary: bring, camera, take photo 2) Grammar: tobe going to III.Ways of working - T - WC, work in pair, individual work IV Materials Projector, cassette, tape V Anticipated problems The lesson is quite long so Ss can’t apply in real situtions VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (5’) Ask Ss to answer questions and retalk about “be going to” Eg: +What are you going to tonight/ tomorrow/ on the weekend? (I'm going to my homework/ watch TV/play badminton) + What is she/ he going to this evening? (He/ She is going to watch TV) Present the new lesson New lesson (37’) Activities * Pre: Listening - Ask Ss some questions + What are you going to on Saturday morning / afternoon / evening? + What are you going to on Sunday morning / afternoon / evening? Contents I B4: - Answer Then write the answers in your exercise book Eg: On Saturday morning, I'm going to go fishing On Saturday afternoon, I'm going to play badminton On Saturday evening, I'm going to listen GIÁO ÁN ENGLISH - Get Ss to write – call on Ss to write on the board and others on their notebook - Correct * While: Listening - Present the content of the passage - Play the tape – Ss listen and find out the new words - Explain some new words - Play the tape – Ss listen and read - Call on some Ss to read it aloud - Guide them to work in pairs – ask and answer - Ask some pairs to speak out - Correct - Show the picture in B6 and talk the aim - Ask Ss to look at them and talk the name of each picture - Guide Ss to listen: Vui and her four friends are planning a camping vacation They are going to camp for three days What are they going to bring? Listen and match the name with the right pictures - Get Ss to guess which thing each person brings - Let Ss listen once first - Get them to listen to the tape again three times to music On Sunday morning, I'm going to go to the zoo On Sunday afternoon, I'm going to play volleyball On Sunday evening, I'm going to watch TV II.B5: - Listen and read New words - Bring (v) mang, đem - Take photo (v) chụp ảnh - Camera (n) máy ảnh - Have a picnic buổi dã ngoại Practice - Lisen and read - Ask and answer S1: What are Minh and his friends going to do? S2: They are going to have a picnic S1: What is Nam going to bring? S2:He is going to bring his camera S1: What is he going to do? S2:He is going to take some photos S1: What is Tuan going to bring? S2:He is going to bring some food S1: What is Minh going to bring? S2:He is going to bring some drink III.B6: - Listen Vui = c + e → Some food and a tent Ly = b → A camera Lan = a → A ball Mai = d → Some drinks Some drinks Nga = d → * Tape transcript: Vui and her friends are going to camp for three days in Sa Pa Vui is going to bring a tent and some food Lan is going to bring a ball Ly is going to bring her camera to take some GIÁO ÁN ENGLISH - Correct photos Nga and Mai are going to bring * Post: Listening some drinks - Show B7 and repeat the main IV B7: - Remember content of the lesson * Tobe going to - Get Ss to make sentences with S + be going to + V + O "Tobe going to" Eg: I am going to visit my grandmother She is going to go to Ha Noi this weekend Home work: (2’) - Do exercises again - Prepare period 87: C _ GIÁO ÁN ENGLISH Date of preparing: 31 / 03/ 2012 Date of teaching: 04 / 03 / 2012 Unit 14: MAKING PLANS Period 87: C – Suggestions I Aims - Ss knowthe way to make suggestions - To develop Ss’skills II Objectives By the end of the lesson, Ss will be able to suggest for free time plans 1) Vocabulary: suggest (ion), let's, pagoda, idea, too, far, minibus 2) Grammar: - Let's go camping - Why don't we go to Huong Pagoda? - What about going to Hue? III.Ways of working - T - WC, work in pair, individual work IV Materials Projector, cassette, tape V Anticipated problems The lesson is quite long so Ss can’t apply in real situtions VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (2’) Show some pictures with some situations and guide Ss to talk about them Present the new lesson New lesson (40’) Activities Contents * Presentation I C1: - Listen and read Then practice in - Show the picture C1 and grounds introduce: Ba, Lan, Nam and Nga 1.New words are going on vacation - Suggest (v) đề nghị + Can you guess where they are - Suggestion (n) lời đề nghị going to go on their vacation? - Let's = Let us - Call some Ss to guess - Pagoda (n) chùa - Let's start our lesson to know - Too (adv) where they are going on their - Far (adj) xa GIÁO ÁN ENGLISH vacation - Play the tape and introduce some new words - Guide Ss to get meaning - Guide Ss to read - Let them read new words in silence - Call some Ss to read new words - Check Ss’ reading - Guide Ss to make suggestion - Give some example and explain - Get Ss to set up the form - Get Ss to take note the use of the verbs - Guide them how to answer - Get them to give some examples - Idea (n) ý kiến - Minibus (n) xe buýt nhỏ - That's a good idea một ý - Good idea kiến hay Grammar * Suggestions Eg: Let's go camping What about going camping? Why don't we go camping? Let's + V ……… What about + V - ing …? Why don't we + V ……… * Answer (+) Agree: Yes, let's / Yes Good idea / That's a good idea (-) Disagree: No, let's not / No, it's not a good idea 3.Practice * Practice - Play the tape again – Ss listen and repeat - Listen and read - Guide them to read - Practice in groups - Get them to read it in silence in groups - Call some groups to read aloud - Correct - Get Ss to reread C1, work in pairs to answer the questions in C2 - Get them to compare the answer with each other - Call some pairs to ask and answer - Correct II.C2: - Answer a Nam wants to go to visit Hue b Nga wants to visit Huong Pagoda c Lan wants to walk d Because it's too far e He wants to travel by bike f Because it's too hot g Ba wants to travel by minibus - Show the pictures in C3 and ask III.C3: - Make suggestions Ss to answer some questions a Where are the children playing? a Let's go swimming (Beach) Yes, let's b Where are these boys standing? GIÁO ÁN ENGLISH (Museum) c What are they doing? (Play volleyball) d Where are they visiting? (Zoo) e What are they doing? (Play badminton) f What are they doing? (Camping) - Get Ss to work in pairs to make suggestion for each picture - Call some pairs to practice before the class - Correct b Why don't' we go to the museum? It's not a good idea * Production - Show the content of remember - Get Ss to work in groups to give out the situation and make suggestions IV C4: - Remember - To want - Let's - What about - Why don't we Eg G1: We are hungry G2: Let's go to the canteen to eat something c What about playing volleyball? Yes Good idea d Let's go to the zoo No, let's not e Why don't we play badminton? No, it's not a good idea f What about going camping? Yes Good idea Home work: (1’) - Learn by heart new words and forms and redo part C3 - Do exercise + + on page 116 + 117 in workbook - Prepare period 88: "Grammar Practice" _ GIÁO ÁN ENGLISH Date of preparing: 04 / 04/ 2012 Date of teaching: 07 / 04 / 2012 Period 88: GRAMMAR PRACTICE I Aims - Ss remember all knowledge that they've learnt from unit 12 to unit 14 and practice exercises axactly - To develope Ss’skills II Objectives By the end of the lesson, Ss will be able to apply their knowledge to all exercises well 1) Vocabulary: 2) Grammar: + Present simple tense + Present progressive tense + Future: be going to + Adverbs of frequency + Weather III.Ways of working - T - WC, work in pair, individual work IV Materials Some real situations V Anticipated problems VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (5’) Ask Ss to retalk the main grammar from unit 10 to unit 12 - Use: like; adverbs of frequency; be going to;… Present the new lesson New lesson (37’) Activities Contents * Act 1: Tenses I Tenses - Retalk the forms of simple present Present simple tense like tense (+) S + V/vs, es … (-) S + don't / doesn't + V… (?) Do / does + S + V ……? Yes, S + / does - Get Ss to exercise in pairs, and No, S + don’t / doesn’t then compare with other pairs Ex1: GIÁO ÁN ENGLISH - Call some to give the answer - Correct - Do the same way (1) - Retalk the forms of present progressive tense - Get Ss to say again the way of adding "V - ing" - Ask Ss to give out the use of "tobe" - Get Ss to exercise in pairs, and then compare with each other - Call some to give the answer - Show the pictures in ex and ask Ss to call the name of each picture - Guide Ss to practice - Call on Ss to sspeak out - Correct * Now answer the questions a) She is going to visit Ha Noi b) She is going to stay in a hotel c) She is going to stay in Ha Noi for a week - Dive (v) lặn a) Do ; like ; play? Do b) Does; does; likes; Does; plays; Does; does c) Do; do; do; Present progressive tense (+) S + be + V-ing…… (-) S + be not + V-ing… (?) Be + S + V-ing… ? Yes, S + be No, S + be not Ex3: a am watching b is cooking playing aren't is winning is c am doing am reading 3.Future: be going to Eg: She is going to visit Hue S + tobe + going to + V-ing + O Ex4: * What are they going to do? a) They are going to play soccer b) Nam is going to play tennis c) Lan and Nga are going to go camping d) He is going to go swimming e) She is going to watch TV f) She is going to cook * Complete the dialogue Vui: am going to Vui: am going to Vui: am going to Ex6: Future plans Ss answer in real situations - Get Ss to exercise in pairs and speak out - Correct * Act 2: Adverbs of frequency II Adverbs of frequency - Get Ss to repeat the adverbs of - Always ● 100% frequency and the used way ◕ - Usually 80% ◒ - Often 60% ◔ - Sometime 20% GIÁO ÁN ENGLISH ○ - Never 0% * Trạng từ tần xuất đứng trước động từ thường đứng sau động từ tobe Eg; I often watch TV I am usually busy * Answer - Ask Ss to answer the questions a) I always / usually / often / and call on Ss to speak out sometimes / never - Correct III Weather * Act 3: Weather - Ask Ss to retalk about the way to What is the weather like in the + ask and answer about the weather season? → It is + adj * Seasons = Summer, Winter, Autumn, Winter * Adj = hot, cold, warm, cool - Get Ss to exercises Ex 5: a) It is warm in the spring b) It is hot in the summer c) It is cool in the fall d) It is cold in the winter * Complete the following sentences a, He always (watch) television b, she (like) bananas? c, are you doing? d, They are (play) soccer now Home work: (1’) - Revise all knowledge and reread part grammar practice - Prepare to written test GIÁO ÁN ENGLISH Date of preparing: 05 / 04/ 2012 Date of teaching: 07 / 04 / 2012 Period 89: WRITTEN TEST I Objectives - Ss remember all knowledge that they've learnt from unit 12 to unit 14 and the test axactly - To test Ss knowledge that they're learnt to find out who are good, normal, bad Ss From that I can choose the best method of teaching to teach my Ss II Matrix Chủ đề Language focus Listening Nhận biết KQ TL Thông hiểu KQ TL Vận dụng KQ TL 4 5 10 Writing III.Contents 16 Reading Tổng Tổng 17 38 10 GIÁO ÁN ENGLISH Date of preparing: 07/4/2012 Date of teaching: 09/4/2012 Period 90: CHECK THE TEST I Aims - Ss remind the main knowledge to check the test And find out the mistakes to correct - To develop ss’skills II Objectives By the end of he lesson, Ss will be able to apply the knowledge in real situations III.Ways of working Individual work IV Materials - Test V Anticipated problems VI Teaching steps Warm up (1’) Greet and check the Ss’ attendance Revision (2’) Remark the test 3.New lesson (40’) Activities - Remark the main mistakes – Ss listen and write - Ask Ss to retalk the forms of suggestions Contents I Remark the main mistakes * Suggestions: Let’s ……… What about……….? Why don’t we…………? Eg: Let’s……… swimming (go to/ go/ going/ goes) What about…… TV? (watch/ watching/ watches/ to watch) Why don’t we play soccer? What about….playing soccer? * Future with “be going to” Eg: What are you……do on the weekend? (go to/ go/ going to/ goes) I (do)…am going to my homework GIÁO ÁN ENGLISH - Give Ss their tests – Ss look at them and correct tonight II Check the test - Give out exercise and ask Ss to - Call some Ss to on the board and others on their notebook - Correct - Hang a side board – guide Ss to - Call on some to speak out and correct Ex1: Put the words in the right order to make meaningful sentences my /is/drink/orange juice/ favourite does/listen/how/she/music/to/often? go/ I/ fishing/on/ often/sunday biggest/in/the/Mexico city/world/ the/ city/is would / like / breakfast/ what / for /you? some / would /bread /like/ I/ milk/ some/ and Ex2: Put the correct form of the verb Look! it (snow) The sun (rise) in the west You (go) to the party tonight? Let’s (go) to the zoo Hurry ! The bus (come) I don’t want to miss it You can borrow my umbrella I (not/ need) it at the momment How about (go) on foot? Why we (not, go) to the cinema? Homework (2’) Guide Ss to prepare period 91: Unit 15: A