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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

Tag: open number line

Female teacher standing at a whiteboard. Students are sitting in front of her. Math equations on the board.

Video: Division on the open number line in fourth grade

doubling, money, multiplication, open number line

Complications with representing constant difference on an open number line

Representing student thinking during a number string is complex. Certain strategies are particularly challenging to represent. For addition and subtraction, … More

open number line

a series of sorting fractions number strings

Sorting Fractions, money, percentages or decimals Which would you rather have? 45/100 or ½ ¾ or 8/10 8/20 or 2/5 … More

open number line

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

String Designers

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

Contact Information

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

Recent Posts

  • 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
  • Prime Climb Number String
  • 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

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Blogroll

  • Mathematics in the City

Top Posts & Pages

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  • Strings
  • What is the difference between Number Strings and Number Talks?
  • Trusting the digits: Developing place value understanding
  • Video: Division on the open number line in fourth grade
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