Unit 3,Im twelve.,A: Whats your name? B: My name is/ I am A: What class are you in? B: Im in Class,Grade. A How old are you? B: Im A: What is your telephone number? B: Its ,Work in pairs, ask and answer,Can you say the numbers?,11,12,13,14,15,16,17,18,19,thirteen,eighteen,seventeen,sixteen,fifteen,fourteen,nineteen,twelve,eleven,twenty,Please finish Activity 6 on Page S13.,Lets write,1,2,Can you say the numbers?,2,3,3,6,4,9,5,8,6,5,7,6,8,10,9,4,115,16,How many are there?,There are .,Ask and answer:,Listen and match.,11,12,13,14,15,16,17,18,19,20,boys girls desks chairs books bags,12,17,20,14,19,16,Work in pairs. Ask and answer.,Lets calculate!,two + fourteen =,nine + one =,four + eight =,sixteen,ten,twelve,six + seven=,four - one =,thirteen,three,加：and 减：minus 等于：is,practice 1. 11+4 = 15 2. 12+6 = 18 3. 14+6 = 20 4. 17+2 = 19,Listen and write. 1. 11+_ = _ 2. _ +4 = _ 3. _+2 = _ 4. 3+ _ = _ 5. _+1 = _ 6. 2+ _ = _,6,17,15,19,18,20,13,16,16,17,12,14,Thank you!,