problem otwarty

It also takes longer to ask "open-ended" questions and to record the responses.

The open-ended questions require students to explain and show how they got to an answer.

He didn't know how to reply to the open-ended question.

Where possible, ask for specific information rather than using open-ended questions.

"I try to ask open-ended questions so they can't just answer yes or no," she said.

At present all we have are the agency's open-ended questions.

That was an open-ended question, not pointing her in any particular direction.

The officers came back to the house two days later, asking open-ended questions and looking for answers.

He may not, however, ask more generalized and open-ended questions.

When you talk about moral issues with your children, ask a lot of open-ended questions.

There are still many open problems in this area.

If this is an optimal construction remains an open problem.

In fact, each of the following is an open problem:

However, there has been no progress on the name issue which remains an open problem.

The existence of such an example was an open problem for many years.

The exact value of the sofa constant is an open problem.

It is common in graduate schools to point out open problems to students.

It is an open problem as to whether such constructions are possible.

There, he was the first put forth the question of what shapes are possible as an open problem.

Though they have been studied for more than a hundred years, many open problems remain.