The purpose of this activity is for students to learn Stage 2 of the Roll and Add center. Students roll to find 2 numbers, fill in an expression, and find the value of the expression. The purpose of the Activity Synthesis is to highlight different representations students used to find the value of the expressions, such as using fingers, using objects, and drawing pictures (MP2).

• Invite a student who used their fingers to find the value of an expression to share.
• Invite a student who used objects to find the value of an expression to share.
• Invite a student who drew a picture to find the value of an expression to share.
• After each student shares, ask students where they see each number in the expression in the representation.

The purpose of this activity is for students to find the value of addition and subtraction expressions.

• “What do you know about this expression?”
• “Can you use these connecting cubes to show the expression? How can the cubes help you find the value of the expression?”

• Display answers.
• “How can our fingers help us find the value of an expression?”
• “How can counters help us find the value of an expression?”
• “How can drawing a picture help us find the value of an expression?”

The purpose of this activity is for students to choose from activities that offer practice with addition and subtraction story problems and expressions, as well as writing numbers.

Students choose any previously introduced stage from these centers:

• Roll and Add
• Shake and Spill
• Number Race
• Math Stories

• “What is something that used to be challenging for you that you’ve gotten better at? What did you do to help yourself improve?”