Number lines are a key instructional tool for supporting students in understanding fractions as numbers and understanding the iteration of unit fractions to form a whole. This representation of fraction affords the use of multiple student strategies which educators can use to connect to the construct of fractions as a measure, develop understanding of the magnitude of numbers, and build student intuition around specific fraction concepts.
In the Number Lines stack you will have the opportunity to develop and demonstrate four competencies.
Upon successful completion of the following three microcredentials, you will be provided with a certificate of 10 professional development hours:

Apply Number Lines: Demonstrating Application of the Number Lines in Fraction Instruction
To earn this microcredential, you will recognize what number lines are and when/how to effectively use them as a tool in instructional practice. 

Conduct a Student Interview Using Number Lines as the Primary Representational Tool
To earn this microcredential, you will understand and implement an effective student interview to inform fraction instruction that includes number lines. 

Build a Plan to Support Student Understanding of Fractions Using Number Lines
To earn this microcredential, you will create a fractions lesson plan that uses number lines as the primary representational tool and is informed by student thinking obtained through student interviews. 
Upon successful completion of the final microcredential, you will be provided with a certificate of 5 additional hours.

Try It Today: Implementing a Fraction Lesson Using Number Lines
To earn this microcredential, you will implement a lesson plan that is based on student interviews to deliver a lesson on fractions using number lines. 
Use the links on the left sidebar to learn more about and submit artifacts for the microcredentials in the Number Lines stack.