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Prior to instruction, the teacher needs to download one of the interactive whiteboard apps onto the student devices. Students should have had some prior instruction on multi-digit subtraction strategies.
In this lesson, the teacher will explain the task to students and model an example of expectations.
1. Students will tell a subtraction story using multi-digit numbers and record themselves on their interactive whiteboard.
2. Students will solve the problem, explaining the steps using temporal words.
3. Students will also draw a proof drawing to check their computation.
4. Students will share their completed project with their teacher.