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Scientists and development experts across the globe are racing to increase food production by 50 percent over the next two decades to feed the world’s growing population, yet many doubt their chances despite a broad consensus that enough land, water and expertise exist.

The number of hungry people in the world rose to 1.02 billion this year, or nearly one in seven people, according to the United Nations Food and Agriculture Organization, despite a 12-year concentrated effort to cut the number.

Agronomists and development experts who gathered in Rome last week generally agreed that the resources and technical knowledge were available to increase food production by 50 percent in 2030 and by 70 percent in 2050 — the amounts needed to feed a population expected to grow to 9.1 billion in 40 years.

When you separate the different types of screen out, the effects start to vary.

"It doesn't say anything about what you're using that time for."

Photographs have tremendous power to communicate information. But they also have tremendous power to communicate misinformation, especially if we’re not careful how we read them. Reading photographs presents a unique set of challenges. Students can learn to use questions to decode, evaluate, and respond to photographic images.

What happened just before this moment, or just after it?

The photograph of a crowd of jubilant Iraqis toppling the statue of Saddam Hussein in Baghdad on April 9, 2003, is one of the most common images of the recent war in Iraq. A closeup shot shows a crowd of primarily Iraqis toppling the statue. A wide shot of the same scene would have revealed that the crowd in the square was made up of primarily US forces and journalists.

Replacing written text with artwork, photographs, or illustrations offers a number of advantages, especially early in the school year.  Visual imagery is very accessible and a lot less intimidating to a wide range of learners including non-readers, struggling readers, and English language learners. This enables these students a greater chance to practice some of the forms of complex thinking that they will need as the year progresses such as using text evidence, identifying theme, and making connections.

Another advantage the visual imagery has over written text is that it is very fast to decode.

Artworks can and should be treated just as a written text. By doing so, students can get their academic thinking started early, laying a foundation for them to build on throughout their school year.

Jeffrey Beard, the head of one of the world's most respected assessment organisations - the International Baccalaureate (IB) - has been caught red-handed passing off someone else's work as his own.The Geneva-based director general of the IB has been publicly named and shamed by an American academic institution where he made a speech that it has discovered "was not original work".Mr Beard gave a talk on "Education for a Better World" last month at the Chautauqua Institution in New York State.

It appears that Mr Beard broke one of the golden rules of cheating - if you're going to do it don't be too obvious. In using material from Sir Ken, he picked on a world-renowned US-based British educationalist who has had one of his talks viewed more than 1.5 million times on the internet."Mr Beard neglected to cite his source or reveal the quotations for what they were. Yesterday's speech was not original work," the statement continued.The IB's own guide for schools on academic honesty defines plagiarism as "the representation of the ideas or work of another person as the candidate's own".

This week an IB spokeswoman said: "On reflection, Mr Beard thinks that he could have been more explicit about the sources and authors that inspired him for the content of this speech."She said he had drawn from "a number of sources", including Sir Ken Robinson, but "it was never Mr Beard's intent to imply that the ideas were his alone"."If this had not been a speech, but a scholarly or academic paper, he would have made a complete list of all references available," she said.The Chautauqua Institution was not impressed and has withdrawn the speech from its website and bookshop. Its statement ends: "Mr Beard's behavior in this matter is not characteristic of the work done here at Chautauqua and violates the expectations you should have for that work. We acknowledge to you our genuine disappointment in this event."

We’ve created Pine Tree Poetry to interlace students, their peers, parents, teachers and school librarians in a quest for poetry writing excellence. Rarely do students earn kudos or trophies for their writing, but at Pine Tree Poetry, we are dedicated to rewarding the fine writing achievements of students who are 5 – 18. Pine Tree Poetry contributes four important elements to the realm of student poetry. We: 1. Receive, read, evaluate, pick (a few) and publish the best poems written by poets ages 5 – 18. 2. Support schools by awarding thousands of dollars each year for much-needed library materials. Some awards are based upon the number of poems submitted while others are selected at random from among all particiipants. 3. Give a free copy of The Pine Tree Poetry Collection to the library of every school that has one or more students published. 4. Highlight the life lesson that many will write and the best will be chosen. We are not a vanity publishing company! We’re out to change the world one poem at a time and we invite students, parents, librarians, teachers and those who love the written word to join us.

Using the photo-sharing site Flickr and a personal history of studying whale photos, she identified a picture, taken in 2001 by tourist Freddy Johansen in Madagascar, of an Antarctic humpback known to scientists as number 1363. Two years earlier, researchers had spotted 1363, a female, swimming alongside another whale in Brazil. Brazil to Madagascar. That’s a distance of 6,000 miles, nearly double any documented migration by a humpback.

The discovery led to her co-authoring a paper published earlier this month in Biology Letters, and earning her the esteemed title of citizen scientist. In the process, she changed our understanding of the humpback whale.

Sandseter began observing and interviewing children on playgrounds in Norway. In 2011, she published her results in a paper called “Children’s Risky Play From an Evolutionary Perspective: The Anti-Phobic Effects of Thrilling Experiences.” Children, she concluded, have a sensory need to taste danger and excitement; this doesn’t mean that what they do has to actually be dangerous, only that they feel they are taking a great risk. That scares them, but then they overcome the fear. In the paper, Sandseter identifies six kinds of risky play: (1) Exploring heights, or getting the “bird’s perspective,” as she calls it—“high enough to evoke the sensation of fear.” (2) Handling dangerous tools—using sharp scissors or knives, or heavy hammers that at first seem unmanageable but that kids learn to master. (3) Being near dangerous elements—playing near vast bodies of water, or near a fire, so kids are aware that there is danger nearby. (4) Rough-and-tumble play—wrestling, play-fighting—so kids learn to negotiate aggression and cooperation. (5) Speed—cycling or skiing at a pace that feels too fast. (6) Exploring on one’s own.

This last one Sandseter describes as “the most important for the children.” She told me, “When they are left alone and can take full responsibility for their actions, and the consequences of their decisions, it’s a thrilling experience.”

the final irony is that our close attention to safety has not in fact made a tremendous difference in the number of accidents children have.