In a class this past December,after I wrote some directions on the board for students about their final examination,one young woman quickly took a picture of the board using her smart phone.When I looked in her direction,she apologized:"Sorry.Was it wrong to take a picture?"

    “I can't read my own handwriting,”the young woman explained."It's best if I take a picture of your writing so I can understand the notes."

    That remark started a class-wide conversation about taking a picture instead of taking notes.For those in the photo-taking camp,motivations extended beyond their inability to comprehend their own handwriting.Some took pictures of notes because they knew their phone was a safe place to store material.They might lose paper,but they wouldn't lose their phones.Some took photos because they wanted to record exactly the manner in which I had noted information on the board.Others told me that during class they liked to listen to the discussion attentively.

    Yet the use of cameras as note takers,though it may be convenient,does raise significant questions for the classroom.Is a picture an effective replacement for the process of note-taking?

    Instructors encourage students to take notes because the act of doing so is more than merely recording necessary information—it helps prepare the way for understanding.Encouraging students to take notes may be an old-fashioned instructional method,but that a method has a long history doesn't mean it's out of date.Writing things down engages a student's brain in listening,visual,and kinesthetic learning—a view supported by a longstanding research.The act of writing down information enables a person to begin committing it to memory,and to process and combine it,establishing the building blocks of learning new concepts.

    Taking a picture does indeed record the information,but it deletes some of the necessary mental engagement that taking notes employs.So can the two be equally effective?

    I'm not sure how to measure the effectiveness of either method.For now,I allow students to take notes however they see fit—handwritten or photographed—because I figure that some notes,no matter the method of note-taking, are better than none.

    John D. Rockefeller once said, “The ability to deal with people is as purchasable a commodity (日用品) as sugar or coffee. And I will pay more for that ability than for any other under the sun. ”

    Wouldn't you suppose that every college in the land would conduct courses to develop the highest-priced ability under the sun? But if there was one, it would not escape my attention.

    The University of Chicago conducted a survey to determine what adults want to study. That survey cost $ 25,000 and took two years. The last part of the survey was made in Meriden, Connecticut. It had been chosen as a typical American town. Every adult in Meriden was interviewed and requested to answer 156 questions such as “What is your business or profession? Your education? How do you spend your spare time? What is your income? Your hobbies? Your ambitions? Your problems? What subjects are you most interested in studying?” and so on. That survey revealed that health is the prime interest of adults and that their second interest is people; how to understand and get along with people; how to make people like you; and how to win others to your way of thinking.

    So the committee conducting this survey decided to conduct such a course for adults in Meriden. They searched for a practical textbook on the subject and found none. Finally they approached one of the world's outstanding authorities on adult education and asked him if he knew of any book that met the needs of this group. “No,” he replied, “I know what those adults want. But the book they need has never been written.”

    I knew from experience that this statement was true, for I myself had been searching for years to discover a practical handbook on human relations. Since no such book existed, I have tried to write one for use in my own courses. And here it is. I hope you like it.

    It is quite reasonable to blame traffic jams, the cost of gas and the great speed of modern life, but manners on the road are becoming horrible. Everybody knows that the nicest men would become fierce tigers behind the wheel. It is all right to have a tiger in a cage, but to have one in the driver's seat is another matter altogether.

    Road politeness is not only good manners, but good sense too. It takes the most cool-headed drivers great patience to give up the desire to beat back when forced to face rude driving．On the other hand, a little politeness goes a long way towards reducing the possibility of quarrelling and fighting. A friendly nod or a wave of thanks in answer to an act of politeness helps to create an atmosphere of good will and calm so necessary in modern traffic condition. But such behaviors of politeness are by no means enough. Many drivers nowadays don't even seem able to recognize politeness when they see it.

    However, misplaced politeness can also be dangerous. Typical examples are the driver who waves a child crossing the street at a wrong place into the path of oncoming cars that may be not able to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they want to. It always amazes me that the highways are not covered with the dead bodies of these grannies (奶奶).

    An experienced driver, whose manners are faultless, told me it would help if drivers learnt to correctly join in traffic stream without causing total blockages that give rise to unpleasant feelings. Unfortunately, modern drivers can't even learn to drive. Years ago, experts warned us that the fast increase of the car ownership would demand more give-and-take from all road users. It is high time for all of us to take this message to heart.

Learn to cure cancer

    A vaccine for cancer is in the works.

    Lauren Landry and Chloe Tomblin are the scientists. They look in freezers(冰柜) for bacteria to use in the research. This research has its limitations—mostly because their lab is in a high school.

    But Lauren, 16, and Chloe,17 both students are Western Reserve Academy in the US, aren't put off by the difficulties they face in their cancer immunology(免疫学) class.

    “I hope we get to the point where we can get to a vaccine and write a paper,” Lauren said.

    Both conduct research into how to engage the immune system in stopping cancer from forming.

    Though the lab is in a high school, they don't use textbooks. The aim is to conduct real cancer research, either by testing the effects of substances on cancer cells or developing vaccines to target the growth of those harmful cells.

    The idea for the class came from Robert Aguilar, who has taught at the private school for many years. Students spend the first year learning research techniques. In the second year, students swap(调换) their blue lab coats for white ones. By this stage they are well into their research projects.

    “If first-years need any help, they can feel free to ask second-year students,” Aguilar said.

    Students form groups to conduct their research. One pair of students has researched the effect of capsaicin(辣椒素) on killing cancer cells. Another has tested the effect of caffeine(咖啡因) on the growth rate of breast cancer(乳腺癌) cells.

But few students get to the point in their research of experimentation with mice, Aguilar said. Lauren and Chloe hope that they can make decent progress in their work.

    “We know they're going to be used for good,” Lauren said. “If it does or doesn't work, it still has a huge impact.”

    Aguilar teaches the students that even research that doesn't work still contributes to science in some way. He tells students that “the best part of research is failing a lot”.

2023 Collection of Australian Stamps（Executive Edition）

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The coast of the State of Maine is one of the most irregular in the world. A straight line running from the southernmost coastal city to the northernmost coastal city would measure about 225 miles. If you followed the coastline between these points, you would travel more than ten times as far. This irregularity is the result of what is called a drowned coastline. The term comes from the glacial (冰川的) activity of the Ice Age. At that time, the whole area that is now Maine was part of a mountain range that towered above the sea. As the glacier declined, however, it applied enormous force on those mountains, and they sank into the sea.

As the mountains sank, ocean water charged over the lowest parts of the remaining land. And the highest parts of the former mountain range, nearest the shore, remained as islands. Marine fossils found here are 225 feet above sea level indicating the level of the shoreline prior to the glacier.

The 2,500-mile-long rocky and jagged (锯齿状的) coastline of Maine keeps watching over nearly 2,000 islands. Many of these islands are tiny and uninhabited, but many are home to blooming communities. Mt. Desert Island is one of the largest, most beautiful of the Maine coast islands left behind by the glacier. Measuring 16 miles by 12 miles, Mt. Desert was very nearly formed as two distinct islands. It is split almost in half by Somes Sound, a very deep and very narrow stretch of water seven miles long.

For years, Mt. Desert Island, particularly its major settlement, Bar Harbor, has afforded summer homes for the wealthy. Recently, though, Bar Harbor has become a new arts community as well. But the best part of the island is the unspoiled forest land known as Acadia National Park. Since the island sits on the border between two different geographical zones, the park supports the plants and animals of both zones. It also lies in a major bird migration lane and is a resting spot for many birds.