*Kagan Structures* Great concept that could be used as an ice breaker at the beginning of the year or with different questions to survey students' prior knowledge at the beginning of a new unit. Could be easily translated into French, Spanish, etc.
Cooperative Learning Activities for Wonder by R.J. Palacio
This poster is a great way to teach students the difference between being a boss and being a leader. This is an important skill to introduce before beginning partner or group work. ***Note: The second page is a version with an additional idea added per