Video assignment 2: The transition lesson for teaching 3-digit adding by demonstrating and explaining

Your task: On video (recorded in Screencast-o-matic or something equivalent), record yourself demonstrating how to add 3-digit numbers as a lesson in the transition phase:

• Download my Smart Notebook for the 3-digit problem 384 + 269
• Put the manipulative work in order, and choose the best equation to put next to it.
• Record yourself as you talk through the problem, explaining each step as you go. You may either just give verbal explanations of each step or you can simulate a discussion with "students"

Things I will take into consideration as I grade this:

• What language are you using for exchanging? You can use group, trade, exchange, regroup or make, you should not be using "carry".
• Are you using place value language? If you have 4 in the tens place, that number represents 4 tens or 40, but it is not simply 4.
• Are you effectively going back and forth between the manipulatives and the numbers? You should be using the manipulative steps at each stage to explain the numerical steps.

My big concern is trading and place value language. If you wait until you have feedback on the 2-digit assignment, it may be helpful. I'd like everyone to practice using appropriate language, so if there are things I want to see improvement on after I watch this video from you, then I will give you a 3-digit subtraction video problem as a make-up. If you do great on this video, you won't need to turn in a 3-digit subtraction video.