② A lecture where students can actively participate
発音しにくいと思いますが、参加型講義は「① A participative lecture」です。
もっと平たい言い方ですと、「② A lecture where students can actively participate」。この方が推奨ですね。 日本語で言うと、「受講者が積極的に参加できる講義」になります。
ジュリアン
An interactive lecture or any interactive experience, is one in which the people that are present are actively involved in some way. They may be required to speak, or participate in some other way, to complete the delivery of the activity.
Interactive = all those present actively participate.
Student participation = the students must take part!
In the classroom. Classroom activities guided by the communicative approach are characterised by trying to produce meaningful and real communication, at all levels. As a result there may be more emphasis on skills than systems, lessons are more learner-centred, and there may be use of authentic materials.
When something is described as being "involving" it means that it requires active participation similar to the use of the word " interactive.
When something is described as being "involving" it means that it requires active participation similar to the use of the word " interactive.
Interactive＝インタラクティブな、と同じように、
Involving＝関与する、は積極的に参加することを要します。
A class where the students participate is called a seminar. This is a class which often follows a lecture and has a smaller number of students with a teacher where they can discuss the subject of the lecture.
イギリス 
アメリカ合衆国 
南アフリカ 
