• 07/05/16   |   Adjusted: 01/10/17   |   1 file

# Human-Sized Number Lines: Let’s Compare Fractions

• Description
• Files

Mathematically:

• Allows students to see fraction equivalence with a large visual model
• Promotes coherence by highlighting prior knowledge and pointing to the mathematics that will be built from these ideas
• Encourages students to use appropriate tools strategically (MP.5) (see additional thoughts below)
• Requires students' use of precise grade-appropriate mathematical language (MP.6)
• Reinforces that fractional comparisons are valid only when referring to the same whole
• Uses fractions greater than 1 to support students’ understanding of fractions as numbers (e.g., 3/2, 5/3)

In the classroom:

• Captures student attention by using an engaging context
• Gives formal and informal opportunities for teachers to check for understanding
• Provides robust opportunities for students to discuss mathematical concepts; includes guiding questions for teachers to use to facilitate discussion

• Making the Shifts

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

 Focus Belongs to the major work of fourth grade Coherence Builds on key understandings of fractions as numbers (3.NF.A), equivalence and comparing fractions with same numerators and denominators from grade 3. Rigor Conceptual Understanding: primary in this lesson Procedural Skill and Fluency: not addressed  in this lesson Application:not addressed in this lesson