Re-engagement Lesson Objective: Students will be able to identify and correct common errors in using the "making 10" strategy for addition and subtraction problems within 20. Re-engagement Modeling: 1. Begin by discussing the common error identified in the formative assessment. For example, if students are forgetting to add the remaining number after making 10, highlight this error. 2. Model the correct process on the whiteboard, emphasizing the step that students are missing. 3. Have students practice correcting problems that contain this error, guiding them through the process. 4. Provide immediate feedback and correction, reinforcing the correct process. 5. Continue practicing until students demonstrate understanding and can correct the error independently