The phrase "a challenge for students" is correct and usable in written English.
It can be used when discussing difficulties or obstacles that students may face in their learning process or academic tasks.
Example: "The new curriculum presents a challenge for students who are not familiar with the subject matter."
Alternatives: "a difficulty for students" or "an obstacle for students".
Overlapping sports and activities are as much a challenge for students as overlapping athletic seasons.
Finishing in three years could be a challenge for students who need summer jobs to pay tuition.
"We met a teacher recently who said that moving from something like Scratch to a programming-based interface like Codecademy can be a challenge for students.
This week, the class was so inspired by a Times article about an artist's inflatable Buddha sculpture, that they have designed a challenge for students (and adults) everywhere: find a piece of "art" (however you define it) in your own surroundings, and post a photo of it to Twitter with the hashtag #art4me.
Measurement, statistics, trigonometry and reading signs have been shown to be a challenge for students who attempted the assessment.
Describing the adequate form of the reaction mechanisms and predicting the resulting compounds represent a challenge for students.
Researching a history paper, he said, is not just about accumulating facts, but about developing a sense of historical context, synthesizing findings into new ideas, and wrestling with how to communicate them clearly — a challenge for many students, now that many schools do not require students to write more than five-paragraph essays.
"It doesn't require much more than memorization," Mr. Decker said, adding that even memorization was a challenge for some students.
Arabic, which is not part of the Indo-European language family, is a challenge for Western students; generally, they must learn not only the Modern Standard Arabic that is understood from Iraq to Morocco, but also one of the local variants that people actually speak day to day, and classical Arabic if they want to read literature or the Koran.
Learning surgical skills in the operating room may be a challenge for medical students.
In summary, previous research has established that PBLT appears well suited for generating authentic communication in EFL classroom environments which may otherwise present a challenge for getting students to use English meaningfully.
