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学生说明
1.Tap 
button.
2. Tap on each picture to learn new things about volcanoes.
3: Tap the 
tool and list 5 new things you learned about volcanoes.
4. Tap the 
to add to your journal.
教师备注（学生不可见）
I used this link to create the choice boards. Insert pictures and link the site. https://youtu.be/hYOryeve24I
