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学生说明
Welcome to today's math lesson!
Note: Today there is no video. The worksheet today is a review of previous lessons.
1) Press 
2) Use the 
or the 
tools to finish the problems.
3) Press the 
two times to send your work to your teacher.
教师备注（学生不可见）
Teachers, The worksheet I added today is the homework, rather than the problem set. Thanks to Kristin Arwood for giving us permission to use her video. Video by Teaching Independent Learners. https://www.youtube.com/channel/UCELqg9AdEu9zTof1qFv99MA
