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学生说明
🎯 I can use mathematical models to add or subtract within 1000.
1) ⏯ Watch the video directions
2) Click 
to complete the "Equation of the Day" form using the equation that your teacher gives you.
Use the 
or 
tool to complete the form.
3) Use the 
tool to record yourself explaining your work.
4) Click the 
button to turn in your work when you are finished.
教师备注（学生不可见）
Math Reps are an EduProtocol created by @nowatechie and found in the book "EduProtocol Field Guide" by Marlena Hebern & Jon Corippo
