• 02/26/14   |   Adjusted: 02/11/16   |   1 file

# Building Tens at the Lego Factory

• Description
• Files

Mathematically:

• Connects numerical representation with combination and composition of base-ten units
• Encourages students to organize quantities into groups of ten and ones to represent two-digit numbers
• Provides opportunities for students to practice choosing an efficient strategy for representing a two-digit number as an amount of tens and ones
• Asks students to generalize place value understandings to prepare for future work with two-digit numbers
• Encourages students to use appropriate tools strategically (MP.5) (see additional thoughts below)

In the classroom:

• Uses concrete and pictorial models to make the mathematics explicit
• Prompts students to share their developing thinking and understanding
• Allows for whole class, partner, and individual work in one lesson
• Provides opportunities and suggestions for meaningful differentiation
• Gives formal and informal opportunities for teachers to check for understanding

• Making the Shifts

How does this lesson exemplify the instructional Shifts required by CCSSM?

 Focus Belongs to the major work of first grade Coherence Builds on key understandings of place value (K.NBT.A); Lays foundation for using place value understanding to add and subtract in grades 1 and 2 (1.NBT.B, 2.NBT.B) and to count to 1,000 in grade 2 (2.NBT.A.2) Rigor Conceptual Understanding: primary in this lesson Procedural Skill and Fluency: primary in this lesson Application: secondary in this lesson