The Open Number Line is not just a powerful tool for computation, but it's an amazing model for developing all sorts of mathematical concepts! In this episode Pam and Kim discuss how to help students develop the Open Number Line in a natural and meaningful way.
Talking Points

• Moving from discrete counting to a continuous model
• Introduce the Number Line through measurement
• Elapsed Time on a Number Line
• The precursor to the coordinate system

Also check out Cathy Fosnot's amazing rich task: https://www.heinemann.com/products/e01010.aspx