Hands-On Math: Open Number Line Course

Make Mathematical Thinking Visible with Open Number Lines 

Help students move beyond counting and rigid procedures toward more efficient, flexible mathematical thinking. This hands-on micro course explores how open number lines can make number relationships and student thinking visible through strategic jumps and visual models. Educators will discover practical ways to use open number lines to model operations, strengthen estimation, and encourage students to develop their own mental math strategies across grade levels from kindergarten through high school.

By the end of this course, learners will be able to:

• Use open number lines to visually model mathematical operations and number relationships.
• Apply estimation and strategic jumping to support efficient problem-solving.
• Guide students in developing and communicating flexible mental math strategies.

Target Audience:

• Math Teachers and Coaches 

Format:

• Self-paced eLearning course with interactive knowledge checks and real-world scenarios.
• The estimated time to take the course is 10 minutes.
• Downloadable Lesson Plan that you can use to support student understanding of adding rational numbers using open number lines geared to middle school students, and can be adjusted to meet the needs of your students.
• A completion certificate is available after completing the course.