Number Line

Number Line

Visualize and work with numbers in sequence on a virtual number line with or without tick marks. 

App Tutorial

Learn all about this app with a set of fun challenges for teachers and students.

The Number Line app helps students visualize number sequences and illustrate strategies for counting, comparing, adding, subtracting, multiplying, and dividing. Choose number lines labeled with whole numbers, fractions, decimals, or negative numbers. Or use a custom number line, with or without tick marks, and set your own interval.

Show intervals between points on the line using forward or backward jumps above and below the line. Jumps can also be labeled with their values or left blank. Add custom tick marks to the number line to show equivalence or compare number values. 

The Number Line app is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use laptops, iPads, or Chromebooks.

The number line is a key model used in Bridges in Mathematics, second edition. Online preview available.

App Features

  • Set up a number line with whole number, fraction, or decimal intervals.
  • Add and manipulate forward and backward jumps, above or below the line.
  • Label jumps, manually or automatically, to show intervals or hide labels altogether.
  • Add custom tick marks and values to open number lines.
  • Share your work by saving an image or creating an 8-character code and link to send to others.

Related Products

Get More From This App

Book for Educators

The Number Line series: Learning to Think Mathematically with the Number Line

The number line is a common artifact in K–5 classrooms but is seldom used to its potential. This book is filled with theoretical and practical information that can make the number line a powerful model for mathematical learning. Teachers learn how to implement lessons that help grow students’ confidence, fluency, and facility with numbers. Engaging activities support students’ development of intuitive strategies for single- and multiple-digit addition and subtraction.

 Download English  Download Spanish

Number Line Strategies & Models


Number Line was made possible by a generous donation from Dr. David Moursund.

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This app was crafted by Clarity Innovations: “We improve teaching and learning by creating solutions that match promising technologies with the needs of education.”