# data[].attributes.headline
No opt out.  If they say "I don't know...", you can reply with, "but what if you did know?"...

# data[].attributes.subject
No opt out.  If they say "I don't know...", you can reply with, "but what if you did know?"...

# data[].attributes.body
Students have to pick ABCD before hand, then you display the question and ask whether what they picked was right or wrong and justify it

# data[].attributes.headline
Feedback to a specific Learning Outcome or Question

# data[].attributes.subject
Feedback to a specific Learning Outcome or Question

# data[].attributes.body
https://answergarden.ch/

# data[].attributes.body
Ask what they do know about the subject, ask other questions about the subject to try and get an answer from them

# data[].attributes.headline
Most times students who are not answering would not pay attention to the one answering - so i would expect the next student to summarise the previous answer and then followed by their own answer 

# data[].attributes.subject
Most times students who are not answering would not pay attention to the one answering - so i would expect the next student to summarise the previous answer and then followed by their own answer 

# data[].attributes.body
Keep asking further questions - even after it gets uncomfortable

# data[].attributes.headline
Check if they actually understand what you are asking.

# data[].attributes.subject
Check if they actually understand what you are asking.

# data[].attributes.body
See 3 before me ... ask them how they could find the answer

# data[].attributes.body
Students can nominate another member of the class to answer on their behalf. If they get it correct both get a reward.

# data[].attributes.headline
Keep prompting further questioning ... even when it gets uncomfortable

# data[].attributes.subject
Keep prompting further questioning ... even when it gets uncomfortable

# data[].attributes.body
"Guess" will make them answer wrongly and for some students, it would bring down their self-esteem...

I give them 20 seconds to search for the answer, then answer again...