Our number bond work mats, group work, center work, and assessments have tremendously helped my students with missing addends. This follows CCSS and gives many different ways for students to "show what they know" using number bond activities. In the center
What a great positive group activity! Have one person sit on a chair in front of a white board while the others wrote a positive phrase about them. Take a picture to give to each person. A very creative and positive group activity.