The activity can easily be made to fit the needs of any grade level. This version is geared toward lower elementary students. You can differentiate by changing the complexity of the questions or the time you allow for discussion.
You can use this with upper elementary students and above by asking more thought provoking questions.
The time frame is flexible. You can do this for just one question or continue on through three or four questions. It would be a good activity for those times you have just 5 or 10 minutes of extra time.
It fits within the speaking and listening standards. SL.K.1 Participate in collaborative conversations with diverse partners about kindergarten topics and texts with peers and adults in small and larger groups.
The wording is similar in the other grade levels:
In third grade, students are asked to be able to express their ideas clearly and that continues through the upper grades.