This is a conversation lesson plan designed with higher level adults in mind (C1/C2). It could also be adapted for lower levels. Download the handouts below:
The advanced discussion phrases handout is a truncated version of my C2 speaking phrase sheet, other phrase sheets could be used for lower levels.
Give out the phrase sheet. Have students peruse it and ask questions about unfamiliar expressions. You may also want to model pronunciation of some of the exponents, although this could also be done reactively. You could also ask students to choose their favourite expressions from the list to encourage ownership of the exponents.
Give out the discussion topics. Explain the system: students must read the topic and first individually circle one of the numbers between one and six to determine how much they agree with the statement. Students are then free to discuss the topic in groups or as a class. They must decide their level of agreement before discussing the topic to avoid following the crowd. This system should lead to more in-depth discussion and hopefully more disagreements!
Encourage the use of the expressions on the phrases sheet; you could award points for the number of expressions used. Some of the discussion topics are common proverbs or phrases so be ready to give definitions and examples to illustrate meaning.