亲爱的小朋友们，
光的速度很快吧，两年内就能到太阳系的边缘。从小萝卜头到大萝卜头，从写几个字到写几百个字，从戴绿领巾到红领巾，从一年级到两年级，王老师和你已经走过了两年时光。哎，为什么感觉时间走得比光速还快呢？
秒针走525,600个一圈是一年，两年的学校时光，也留下了数不清的回忆，带着大家唱各式各样的英文歌绝对是一大乐事，谢谢小朋友们的配合。Blitzen boogie唱起来活泼又快乐，金砖的秘密又是rap又是英文合唱，真是太难为大家了，哈哈！一起看《星际穿越》感受穿越空间维度的爱，一起看宇宙的结构，了解真实的世界，一起看《银河系漫游指南》，讨论外星文明与蠢的决策，一起练字，临摹文徵明，一起去上海博物馆参观董其昌书法展，一起制作自己的星球！王老师的神神叨叨都被你们的天真完美消化了，真是快乐的两年了，太感谢你们了！
就像世界上没有人能画出最最标准的正圆，没有完美的完美，事情的发展会遭遇种种外在的干涉。三年级开始你会遇见一位新老师，她会和我有很多的不同，这是很正常的。每一个人都会有自己的闪光点，你要去挖掘它，我相信希望你也相信老师一定会给大家带来新感觉与新气象。
说到遗憾总是有的，文徵明落花在了第四首，宇宙和科学的探索才迈了第一步，上海天文馆也不能组织大家一起去参观了……
活着的人一生中会面临很多次的别离，植物宝宝会离开妈妈去旅行，毛虫变成蝴蝶后，也独自遨游花丛，这是万事万物的自然规律。
还记得《当世界年纪还小的时候》里说的吗？也是王老师最想告诉你的：改变常常突如其来，只要明白自己做什么最容易就行了。
你们的王老师
Dear little ones,
Light travels fast, doesn't it — fast enough to reach the edge of the solar system in two years. From tiny radishes to bigger radishes, from writing a handful of characters to writing hundreds, from green scarves to red scarves, from first grade to second grade, Mr. Wang and you have walked through two years together. So why does it feel like time moves even faster than light?
The second hand circles 525,600 times to make a year. Two years of school have left behind more memories than I can count. Singing all those English songs with you was one of the greatest joys — thank you for going along with it. "Blitzen Boogie" was lively and full of laughter; "The Secret of the Golden Bricks" had you rapping and singing in English at the same time — I really put you through it, didn't I! We watched Interstellar together and felt love cross the dimensions of space. We watched The Fabric of the Cosmos and glimpsed the real universe. We watched The Hitchhiker's Guide to the Galaxy and debated alien civilisations and spectacularly stupid decisions. We practised calligraphy, copying Wen Zhengming. We visited the Shanghai Museum for the Dong Qichang exhibition. We built our own planets! All of Mr. Wang's rambling nonsense was perfectly absorbed by your innocence. What a happy two years — thank you so much.
Just as no one in the world can draw a perfectly perfect circle, there is no such thing as flawless perfection; things will always encounter interference from the outside. Starting in third grade, you will meet a new teacher. She will be quite different from me, and that is completely normal. Every person has their own way of shining. Your job is to discover it. I believe — and I hope you believe too — that your new teacher will bring fresh energy and a new atmosphere.
As for regrets, there are always some. We only reached the fourth poem in Wen Zhengming's "Falling Flowers." Our exploration of the universe and science had barely taken its first step. And I won't be able to take you all to the Shanghai Planetarium after all…
In the course of a life, every living person will face many partings. A baby plant leaves its mother to travel. A caterpillar becomes a butterfly and then wanders the flowers alone. This is the natural order of all things.
Do you remember what it says in When the World Was Young? It is also what Mr. Wang most wants to tell you: change often arrives without warning — all you need to know is what you do best.
Teacher Wang