Tính diện tích hình tròn có a.r=6cm r=0,5 m r=3/5 b.d=15cm d=0,2m d=2,5dm
A smart board is an interactive whiteboard. It can be connected to one or more laptops, PCs, tablets, or other electronic devices. Smart boards are extremely useful in a classroom because they can engage students, provide interactive opportunities that a traditional whiteboard, blackboard or flip chart can't, and can also develop students' computer skills along with their English skills. Smart boards also have touch-screen technology so you do not actually need a computer to access the basic functionality. You can write on a smart board with special pens which are usually provided with the board, and anything written on the board can be saved for future reference, or printed out. It is great, for example, if you are doing a brainstorming session or a mind map with your classmates and you want to keep a record of it. If you don't want to draw with the pens, you can use a keyboard and type onto a programme such as Word, and have it appear on the screen for everyone to see. This is great if you are doing an exercise with your class and you want everyone to be able to see the answers during the checking stage. You can also run PowerPoint presentations on an interactive whiteboard. These can sometimes be great for grammar or vocabulary presentations and the advantage of them is that students can make contributions. If you have the Internet access, you can access websites and put them onto a white board. This is great in an English classroom if you have online quizzes or games you want to use. Students can actually come up to the board and select their answers. This involves them directly in the board work, which they usually love. You can also run video clips or sound files from the Internet, or some which are saved on your computer. In short, a smart board can make the lessons more varied, and can give students a more active role in the lesson. 36. A smart board is more useful than a traditional board because . A. it can be connected to more electronic devices B. it can be used instead of a whiteboard, blackboard or flip chart C. it provides more interactive opportunities D. teachers can engage students to have lessons 37. Smart boards which have touch-screen technology is great because . A. you can write on it, save information, or print it later B. you can do a brainstorming session or a mind map with your classmates C. you do not need anything to write on it D. you can use a keyboard and type onto a program such as Word 38. It is great for you to run Word or PowerPoint on a smart board because . A. you don’t need to draw with the pens B. you can see the answers before the checking stage C. it can be used for grammar or vocabulary presentations D. everyone can see your presentations and take part in them 39. With the Internet access, the smart board is a wonderful tool for education because . A. students can use write on a smart board with special pens B. we can have multimedia lessons and more contributions from students C. students can download video clips or sound files from the Internet D. we can use anything that is saved on our computer 40. All of the following are true about a smart board EXCEPT . A. the lessons are more diverse and students are more active B. you do not actually need a computer to access the basic functionality C. it develops students’ English skills but not computer ones D. anything written on the board can be saved for future reference
thái độ của nhân dân ta trước cuộc khủng hoảng kinh tế thế giới (1929-1933) ?
Tỉnh công suất của dòng nước chảy qua đập ngăn cao 25m xuống dưới, biết rằng lưu lượng dòng nước là 120m3(khối)/ phút, khối lượng riêng của nước là 1000kg/m3( khối)
Mng ơiiii giúp e chia từ thik hợp vào chỗ trống với Cảm ơn mng
Một bóng đèn điện chứa khí trơ ở nhiệt độ t1 = 270C và áp suất p1, khi bóng đèn sáng, nhiệt độ của khí trong bóng là t2 = 1500C và có áp suất p2 = 1atm. Tính áp suất ban đầu p1 của khí trong bóng đèn khi chưa sáng. Giúp mik vs mấy bn ơi mik dang gấp thanks
Trong các khẳng định sau khẳng định nào sai? Trong một đường tròn. A. Các góc nội tiếp cùng chắn một cung thì bằng nhau. B. Các góc nội tiếp bằng nhau thì cùng chắn một cung. C. Các góc nội tiếp không quá 90 độ có số đo bằng nửa số đo của góc ở tâm cùng chắn một cung. D. Các góc nội tiếp chắn các cung bằng nhau thì bằng nhau.
ex1: how many main parts are included in an essay ? choose of the pasts to talk about what you are going to write ex2: write an essay of 150 words about how vietnamese people support one another
Dô dúp em vs mng Một vật khối lượng 10 kg bắt đầu chuyển động không ma sát trên mặt phẳng ngang dưới một lực kéo F. Sau một thời gian vật đạt vận tốc 4 m/s. Công của lực kéo là? A. 80J. B. 40J. C. 160J. D. 14J.
Bài 3/liệt kê và tính tổng tất cả các số nguyên x thỏa mãn a/-8<x<8 b/-6<x<4
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