The purpose of this activity is for students to explore building objects with solid shapes. Students work with the solid shapes that they have used in previous lessons. Students may use the shapes to create representations of objects, such as a house, or they may experiment with putting shapes together. The purpose of the Activity Synthesis is to highlight using the names of shapes and positional words to describe the objects that students build (MP6).

MLR2 Collect and Display. Circulate, listen for, and collect the positional words that students use as they describe shapes. On a visible display, record words and phrases, such as:

• Invite selected students to share what they built and the shapes that they used.
• As students share, ask questions involving positional words, such as:
  • “¿En qué parte de la creación de ____ está el cilindro?” // “Where is the cylinder in ______’s creation?”
  • “¿Cuál figura está encima del cubo?” // “Which shape is on top of the cube?”

The purpose of this activity is for students to build objects with solid shapes. Students practice using positional words and the names of solid shapes as they try to recreate a building (MP6). Initially, students recreate the object that their partner built. Then students work together to build an object.

Engagement: Internalize Self-Regulation. Provide students an opportunity to self-assess and reflect on the shapes that they used to build their partner’s design. For example, "I used the cone to create the pointy part of the design."

• Invite one partner from each group to look at the object again.
• “Ahora que vieron otra vez lo que construí, díganle a su compañero en dónde poner las figuras para ajustar lo que construyeron” // “Now that you have seen what I built again, tell your partner where to put the shapes to revise what you built.”
• 2 minutes: partner work time
• Invite students to share how they changed their objects, using positional words and the names of shapes.

The purpose of this activity is for students to learn Stage 2 of the Match Mine center. One student builds an object, using solid shapes and without letting their partner see. Students then use positional words to describe what they have built, and their partner tries to build the same object, based on the description. Folders or other objects can be used to keep students’ work hidden. In order to build matching objects, each partner needs a matching set of solid shapes.

After they participate in the center, students choose any previously introduced stage from these centers:

• Build Shapes
• Geoblocks
• Counting Collections
• Shake and Spill

• “De las pistas que les dio su compañero, ¿cuáles les ayudaron más? ¿Por qué les ayudaron?” // “Which clues did your partner give you that were most helpful? Why were they helpful?”