Open number lines

Dyscalculia: News from the web:

Marilyn Burns shares with us her view on open number lines.

She brings up great reasons to try an approach with and open number line:

  • An open number line reinforces the idea that the answer to a subtraction problem is the difference between two numbers.
  • It supports using the inverse relationship between addition and subtraction by counting up instead of back.
  • It engages students in decomposing numbers and reasoning.
  • It provides a visual model that’s a useful tool.

Read all about it: HERE