teachers’ lonely struggle to reinvent homework and exams

“There are jobs and exercises that I see that help me learn something. I do those. But others that seem unnecessary to me… I tell the AI: do this job for me, I copy, paste and deliver it.” Lucía, an intermediate degree student in the field of health who prefers to remain anonymous, tells it bluntly. Last year he started use AI for their jobs. Since then, some she has made, but many others she has not. It is not an isolated case. In many educational centers, generative artificial intelligence has become an everyday tool. ChatGPT, Gemini and other assistants have become normalized among students to do homework, summaries or papers, just as before they did it Wikipedia or search engines. The difference is that now they not only find information: they also write it. From primary to university “They clearly use it,” says Nerea Eguiguren, a professor of Philosophy and History at a high school in Madrid, referring to the use of these tools among her students. At its core it is something widespread, but he describes this use as “superficial”: “They don’t even open ChatGPT. They put the question on Google and the first answer is from Gemini. They copy it and tell you whatever.” At the university the phenomenon does not go unnoticed either. “The use of AI is widespread,” explains Silvia Eva Agosto Riera, associate professor at the Faculty of Education at the Complutense University of Madrid. Students use it to search for information, write texts or correct work. Some responsibly; others, simply transferring what the tool gives them without contrasting anything. Sergio Cuevas del Valle, a doctoral student in Aerospace Engineering at the Rey Juan Carlos University and a teaching collaborator there, agrees, who is sure that his students use it: “The question is, why don’t they use it?” Meanwhile, in other areas of teaching the impact seems more limited. Marta Benegas, a secondary school Fine Arts teacher, notices it every day. “They don’t use AI as much because they basically draw. To draw you need the notebook and the pencil.” When this use appears, it is usually for the same thing as in other subjects: preparing written work. And the impact of AI is not the same in all subjects. In more theoretical subjects – such as language, philosophy or history – its impact is more noticeable, because many of its traditional exercises, like essays or text comments, are precisely the type of tasks that AI can solve with ease. On the other hand, in more practical subjects the margin for “copying” is smaller: drawing, solving problems step by step or practicing procedures requires demonstrating the process. (Unsplash) Lucía has verified this in her most practical subjects and evaluations: “In many cases, if you don’t have a basis, no matter how much you ask the AI, you won’t be able to understand it. You can ask for steps or instructions, but if you’ve never done it yourself, you won’t know.” In primary school the debate is still in a different phase. The age still slightly limits autonomous use of these tools. Belén Álvarez, a teacher at a school in the Canary Islands, admits that she did not even want to mention AI in her classroom until recently. “I didn’t want them to know her because of me,” he says. Their youngest students are eight years old, but half already have mobile phones with internet access. “Honestly, AI doesn’t seem like the most dangerous thing they have access to.” Given this presence almost omnipotent artificial intelligence In the educational field, teachers find new challenges when it comes to assigning homework and assignments. Teaching tries to adapt to the new scenario, which has led to rethinking the way of evaluating what students really know. Has the end of homework and jobs come? In many cases, the reaction has been immediate and direct. Faced with the reality of being able to solve assignments—which were previously assigned as homework—in a matter of seconds with the help of AI, one of the quickest solutions has been to bring those tasks back to the classroom. Nerea Eguiguren did it after detecting it several times. “Before, I sent text comments home in the second year of high school. The third time I saw that they used AI, I changed.” Now, although he continues to send those exercises, they do them in class: “This way I know they can’t use it.” More face-to-face exercises, more oral activities, less homework or more practical evaluations, all these adjustments are repeated at different educational levels. The detection tools of AI too They have become allies of teachers, who use them above all to supervise more theoretical work – although most of the time as a simple support, since they are aware that their reliability is also limited. And when its presence is evident, the consequence can also be direct. “Of course I have suspended jobs due to improper use of AI (…) You don’t have time to suspend the evaluation, but I have suspended many jobs,” says Eguiguren. It also affects the University. (Unsplash) Sergio Cuevas del Valle has also had to “pose everything differently”: “Almost any problem that I may pose as a challenge will have already been posed, and almost certainly, solved. It is very likely that the students could find it even without AI.” For this reason, it is proposed how “AI comes to question even the figure of the teacher, and even that of the students, to the extent that it allows human beings to have no need to accumulate internal knowledge, nor do we need someone to teach it to us.” All of this “underlines the need to rethink teaching at all levels,” trying to ensure that students “work on skills such as the development of intuition, logical thinking and capacity for effort, which were already inherent to ‘homework’.” AI can solve mechanically almost any problem, “but you still need someone to ask the right questions.” To these new … Read more

The James Webb captures a lonely object of the size of Jupiter devouring like a miniature sun

An international astronomer team has witnessed an extraordinary event: a lonely object, with a mass of just 5 to 10 times that of Jupiter, has entered a violent and prolonged growth burst. Using the combined power of James Webb Space Telescope (JWST) and him Vary Large Telescope (VLT) of the Southern European Observatory, scientists They have observed How this object, known as Cha J11070768-7626326, drastically increases its brightness and its “food” rhythm, behaving like a miniature star. The importance. This discovery represents the first time that a outbreak of accretion of type “exor”, a phenomenon so far associated with young stars, in a body of planetary mass. The finding is not only a milestone in astronomical observation, but also further blur the borders between what we consider a giant planet and a small star. The mystery. CH 1107-7626 is not a planet in the traditional sense that we all have in our mind. Although it has a mass comparable to that of a gaseous giant, I do not orbit any star and is 620 light years from the earth. Is what is known as an “free planetary mass object” or FFPMO (for its acronym in English). The existence of these lonely bodies raises a fundamental question for astronomy: are giant planets that were expelled from their solar systems, or are smaller stars that can exist in isolation? In order to solve this enigma that astronomers have right now on the table, you have to analyze the gas and dust disc that is around, as well as the way of accumulating the material. The fact that Cha 1107-7626 has an album and feeds on it suggests that its origin is more like that of a star. A cosmic feast. Astronomers observed Cha 1107-7626 in a state of calm in April and May 2025. However, for June, something had changed drastically. The object entered a “indulgence.” This means that its rhythm of ‘food’ began to increase, and in this way it reached a mass increase rate of 10-7 masses of Jupiter per year, the highest ever measured in a planetary mass object. As a result of this frenzy, the objective became between 1.5 and 2 brighter magnitudes in visible light and its optical flow increased between 3 and 6 times. This outbreak remained active for at least two months, since it was still on the end of the observation campaign in August 2026. But the most interesting thing is the speed it has. According to the observations made with the Vray Lark Telescope of the European Observatory, the growth rate is really aggressive, with a record rate of devouring 6,600 million tons per second of dust and gas. Great footprints. Beyond the increase in brightness, the telescopes captured detailed physical changes that reveal the nature of the event. A hydrogen emission line, known as Hα, developed a “double peak” profile with a red displaced absorption. According to the authors, this profile is a “distinctive brand” of the accretion channeled through magnetic fields, a process called “magnetospherical accretion” observed in young stars. But the most surprising finding was the change in the chemistry of the disc. At first, changes in the emission lines of the hydrocarbons molecules that came from the disc during the outbreak were seen. But water vapor also began to appear with a characteristic emission around 6.6 µm. This appeared during the outbreak where there was nothing before and is relevant because it is the first time that chemical changes of this type are observed caused by an increase in accretion. Relevance. This event classifies Cha 1107-7626 as the first “exor” of known planetary mass. Exor outbursts are significant accretion events that are considered key episodes in the early evolution of the stars. They can deeply affect the physical structure and chemical composition of the protoplanetary disk, potentially influencing the early stages of planet formation. Observing this process in such a small object demonstrates that the violent and fundamental mechanisms that the stars build also work at planetary scales. The study of Cha 1107-7626 offers an unprecedented vision of the accretion in the lower mass objects of the universe, providing a new window to understand how both smaller stars and the largest planets are formed. Images | Javier Miranda In Xataka | The most transformer of modern cosmology is just around the corner, according to the hypothesis of these physicists

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