Common Core: Number and Operations: Base Ten
As set out by the National Governors Association (NGA) and the Council of Chief State School Officers (CCSSO) in the Common Core State Standards Initiative. For more information, please visit the Number and Operations: Base Ten domain at the Common Core State Standards website.
Series: Hear from the Experts
The Concept of Regrouping with Liping Ma
July 22, 2013
Liping Ma describes some differences between American and Chinese math educators, specifically concerning the idea of regrouping. "It's always easier for children to subtract three from ten than from thirteen."
- Topic: Number Operations
- Age/Grade Level: Adult Learners, Pre-K, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
Series: Focus on the Child February 20, 2013
Solving a Comparison Number Story with Child 30
A child works to discover "how many more" a person has.
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten
- Tags Problem Solving, Comparing, Child 30
Series: Hear from the Experts February 18, 2013
Counting to 20: Joanne Mulligan on Structured Number Systems
Joanne Mulligan provides an example of a six-year-old's personal rules for counting to 20.
- Topic: Counting
- Age/Grade Level: Adult Learners, Kindergarten
- Tags Joanne Mulligan
Do the math.
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