'demonstration lessons' is correct and usable in written English.
You would use it when referring to lessons that are designed to show how to do something, rather than just providing instruction. For example, "The teacher provided demonstration lessons to give the students a practical example of the concepts."
Rather, coaches are specialists with no classroom assignments of their own, who observe other teachers, guide teachers' own learning and teach demonstration lessons.
There, they give demonstration lessons that are critiqued by other candidates, ask questions about problems they had in class, and discuss readings on theories about effective schools.
There are also mentoring lessons in which the two heads hold demonstration lessons, which may include using ICT for some activities.
Mentors are assigned, rather than chosen; they can spend 45 minutes a week in a class, giving demonstration lessons, yet know little about the personal quirks, family backgrounds and academic records that really define the children sitting in front of them.
Vigilant searching, interviewing and observing of demonstration lessons are essential practices to employ for finding the best candidates.
She helped new teachers at South Gate Junior High School by giving demonstration lessons and lending advice on everything from classroom management to lesson planning to "mundane things" such as how to take roll.
Last week I watched a candidate for our ESL position teach a demonstration lesson.
Every single school said no, apart from one which, after a successful interview and demonstration lesson, gave me a job as the lead first grade classroom teacher.
If you are applying for an newly-qualified teacher (NQT) position, you'll almost certainly be asked to teach a demonstration lesson.
A few Saturdays ago, she went to a school in Harlem because she heard the principal would be there (she was invited back to teach a demonstration lesson, but it may be for naught since the city has a hiring freeze).
The events, some of them free, include demonstrations, lessons and performances, four of them outdoors in the New York Botanical Garden in the Bronx, in Bryant Park, at Orchard Beach and in Central Park.
