Skip to content

Number Strings

a community for number string design

  • Strings by topic
    • addition strings
    • subtraction strings
    • multiplication strings
    • division strings
    • rational number strings
    • algebra
  • What is a number string?
  • Resources
    • Books
    • The development of models
    • Two short articles on number strings
  • About

Author: Rachel Lambert

I am a faculty member at the University of California Santa Barbara, and a former teacher. My interests are at the intersections of mathematics education, disability studies in education, and social justice.

Fractions as operators on money (Early fractions)

Fractions as operators, Money What is ½ of $1.00? What is 1/4 of $1.00? What is 2/4 of $1.00? What … More

money, open number line

Doubling with early fractions

Number String: Doubling 4 x 2 1/4 x 2 1/10 x 2 1/5 x 2 2/5 x 2 4/5 x … More

doubling

Halving with early fractions

Minilesson: Halving (Rachel Lambert) What is ½ of 1? What is ½ of ½? What is ½ of 1/4? What … More

Posts navigation

Newer posts

String Designers

  • 20minutejava's avatar 20minutejava
  • abatie's avatar abatie
  • caldwellnicole's avatar caldwellnicole
  • jdibrienza's avatar jdibrienza
  • Janice's avatar Janice
  • jmhmath's avatar jmhmath
  • Kara Imm's avatar Kara Imm
  • Rachel Lambert's avatar Rachel Lambert
  • raquelgoya's avatar raquelgoya
  • sglassco's avatar sglassco

Contact Information

Find Rachel at mathematizing4all@gmail.com Find Kara at karaimm@gmail.com

Recent Posts

  • 10 Ways to Develop a Community During Number Strings
  • Redesigning math communities for distance learning
  • Keeping our math communities humming
  • Learning to “trust the ten”—Developing a community of first grade mathematicians
  • Jenna Laib’s Blog: Daysha at the Board: Assigning Competence
  • Strings by topic
    • addition strings
    • subtraction strings
    • multiplication strings
    • division strings
    • rational number strings
    • algebra
  • What is a number string?
  • Resources
    • Books
    • The development of models
    • Two short articles on number strings
  • About

Enter your email address to follow this blog and receive notifications of new posts by email.

Top Posts & Pages

  • Number string structure and design
  • What is a number string?
  • Life beyond the algorithm: Division of decimals
  • Why Conjectures Matter
  • Trusting the digits: Developing place value understanding
  • Video: Division on the open number line in fourth grade
  • About
  • On the rug with Angela
  • New strings for Measurement + Unit Conversion
  • Prime Climb Number String
Blog at WordPress.com.
  • Subscribe Subscribed
    • Number Strings
    • Join 446 other subscribers
    • Already have a WordPress.com account? Log in now.
    • Number Strings
    • Subscribe Subscribed
    • Sign up
    • Log in
    • Report this content
    • View site in Reader
    • Manage subscriptions
    • Collapse this bar
 

Loading Comments...