Number Strings
a community for number string design
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The development of models
Models for multiplication and division
Models for operations with fractions, decimals and percents
An article that is a great introduction to number strings
Pedagogy
design of number strings
questioning
models
Strings
array model
array model (rational number)
division strings
double number line
fraction strings
models
multiplication of fractions
multiplication strings
open number line
ratio table
rational number strings
rekenrek (math rack)
quick image strings
subtraction strings
Welcome to our site. We are a group of teachers and teacher educators interested in the design and pedagogy of number strings. Click on the images below to explore some of our posts.
The delight of disequilibrium
What’s in a name?
(Re)Thinking Context
Tricky Teens
Moving straight ahead
Encouraging Strings Discussions
Dot Talk: Early Numeracy
The need for new strings
Searching for Friendly Numbers
“Stack of Bills” string
Fractions as Operators (Dot Arrays)
From additive to multiplicative thinking
The “King of Strings” teaches us that strings are maatwerk
Challenge problems, helper problems
Subtraction string – where is the answer?
Arrays on the West Side
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