For each topic (or only one, depending on time)…

1. Note something about the biblical story
2. Name the connection: “Let’s talk about…” and start by giving an example from your own life (you could decide on this ahead of time)
3. Invite children to make the connection to their lives (“Who would like to tell about…”)
4. Another option is to list the topics as you name them and write brief notes about what children say. Having your words written down in an accepting atmosphere is very affirming because you know someone has listened to you.

This should be a non-judgmental, affirming time for everybody.
Help the children learn to speak and also to listen to each other. You might give them a ball or shaped pillow to hold while speaking and then to pass to the next speaker. Or just go around the table so they know when their turn is coming.
The important job of those not speaking is to listen well. The job of the speaker is to talk clearly and loudly so everyone can hear and not to talk longer then their share of the time. Teach whatever you think makes for good conversation.
If someone really does not want to talk, they should be given permission to pass. No pressure, but maybe some gentle encouragement to contribute to the conversation. Help the introverts relax and talk; help the extroverts stop talking and listen.
As they learn how to take turns speaking and listening, you could encourage the listeners to ask questions or comment (positively) on what the speaker has said.

Example for the story in Mark 2:1-12