Why Is the Unit Circle Important? Fig. 1. A unit circle. Radius = 1. © HowStuffWorks 2021 A unit circle defines right triangle relationships known as sine, cosine and tangent. These relationships describe how angles and sides of right triangles relate to one another. Say, for example,...
How can the unit circle be used to construct the graphoff(t)=sint? 相关知识点: 试题来源: 解析 At the point where the terminal side of t intersects the unit circle, you can determine that the Sin t equals the y-coordinate of the point. ...
How to Find a Point on the Unit Circle Given One Coordinate: Example 2 What is they-coordinate of the point on the unit circle in the second quadrant with anx-coordinate of−22? Step 1: Pluggingx=−22into the equationx2+y2=1we get: ...
First, I’d like to analyze the teaching material and learners. The main task for the students is to talk about their experiences, which is one of their favorite topics. Even though the students have learnt the past tense forms of some verbs, they may feel hard to talk about their experi...
第三课时学习B talk 和B learn,学会调控消极情绪;第四课时学习B read and write,学会理解他人的处境和情绪,有同理心,互帮互助;第五课时学习C story time,学会管理情绪,做情绪的主人。整个单元学习后,学生能建构认识情绪,合理表达情绪,正确调节消极情绪,做情绪的主人,拥有健康快乐的人生。
Mike and Wu Yifan are talking aboutthe weekend. Listen and circle. 迈克和吴一凡正在谈论周末。听录音,圈出正确的答案。 1.What do Wu Yifan and Mike want to do first? A. Go hiking. B. Go shopping. 2.What are t...
Read and write 读和写Robin and the ant 罗宾和蚂蚁It is a sunny morning. 早上天很晴。Robin is going to sit on the grass when he hears, "Wait!" 罗宾正要坐在草坪上的时候听到一个声音:“等一下!”It is a litt...
give sth. to sb.给某人某物。 Amy gives Mike a book. Amy gives a book to Mike. give 的过去式 He can help the boys find the Italian restaurant. help sb. (to) do sth. 帮助某人做某事。 Amy helps me find my ruler. Q5:How many places did they pass by? 经过 Read and circle the ...
Read, circle or think 3. Read and underline 4. Retell 4. The solution of the story 1. Learn the word: beak 2. Brain storm 3. Watch and answer 4. Learn the word: pebble 5. Do and feel 6. Try to read Post-reading The whole story 1. Read and choose 2. Retell the story 3. ...
Unit 6 Shopping 购物 Can I help you? 有什么需要帮忙的吗? Yes. This dress is pretty. How much is it? 好。这条连衣裙很好看。多少钱? It\'s eighty-five yuan. 八十五元。 Can I try it on? 我能试试吗? Sure. 当然。 How much are ...