In this worksheet, you can use any type of math problem. They should be problems the class or group is familiar with - so it more of a review. Then, I gave two types of reflections. One is for younger children, or children who are not ready to write complete sentences. The second page is for older children or children who are ready to write more.
Basically you give the problems, have them solve them and then as a class, review them. The reflection part is the most important part because here is where the students need to reflect on their work. Sometimes, with the smiley face section, I have the students verbalize their thinking. So they would need to say, "I know I am correct because ____________" or "I need to remember to ______________." It is important to make sure the students analyze their work and not say, "I know I am correct because I did it all right." They have to have thoughtful responses such as, "I know I am correct because I regrouped the ones and added a tens to the tens place." This part take time!