This is Tammela School， a primary school in Finland． The students are having a math class with their robot teacher．

    The "teacher" is（1）　　small， blue machine about 25cm high， Reuters reported．Whenever students have problems， it helps them very（2）　　（patient） and never gets bored．

    "The robot can make students（3）　　（active） in class than usual． I see Elias as one of the （4）　　（tool） to get different kinds of practice and activities into the classroom，" a teacher told Reuters．

    So far the school（5）　　（introduce） four robot teachers， one of whom is a language teacher that can speak 23 languages and dance to music．" （6）　　is necessary to encourage kids to come up（7）　　new ways to make use of technology in school life，" the head of the school （8）　　（add） in the interview．

    The robot teachers are used（9）　　（help） improve learning． This doesn't mean that human teachers will lose their jobs． The robots can teach well， （10）　　they are not able to keep class in order． The school still needs human teachers．