• “Ahora van a crear pósteres que muestren su trabajo y luego harán un recorrido por el salón” // “Now, you will make posters of your work and do a Gallery Walk.”

The purpose of this activity is for students to analyze the work of their classmates and write equations to show how they made sense of one anothers' thinking. During the Synthesis, students discuss how different representations and equations can match the same story problem. When students share connections between different representations and the story problems, they reason abstractly and quantitatively (MP2).

• For each story problem, display the posters students created to represent it and invite students to share the equations they wrote.
• “En este problema, ¿en qué se parecen las representaciones que vemos en los pósteres y las ecuaciones que compartimos? ¿En qué se diferencian?” // “How are the representations on the posters and the equations we shared for this problem the same? How were they different?” (Some show using addition to solve and some show subtraction. They all find the same answer. Some show each object and some use numbers to represent how many objects.)