In reading, our text structure focus skill has been sequencing, so I blended this with our study of the African Slave Trade. I introduced the lesson by presenting the students with 5 picture cards illustrating events pertaining to the slave trade available HERE on my TPT. I asked them to place these events, starting in West Africa, in the order they thought each happened.
After that, I gave each pair three, more challenging, pictures to put in their line up. This activity is available HERE on my TPT. 
**I DO, YOU DO, WE DO method: I model how to take notes and summarize the first stage, they take notes and summarize the second stage with a partner, and finally they take notes and summarize the third stage independently.
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Using our notes, I wrote a summary of the first stage (getting captured and traveling to the coast) as a model, then they wrote a paragraph summary of the second stage (traveling across the Atlantic in the "Middle Passage") with their partner, and finally, they wrote the last paragraph summary of the third stage (being sold to colonial plantation owners) on their own. Students took some time to illustrate each stage as well.
The kids did a great job of being respectful and thoughtful of this very sensitive subject and their learning showed through on their summaries. How do you teach this subject? Do you have any unique ways of helping students understand the Slave Trade, I would love to hear them!