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: Focus on Collaboration
Planning and Reflecting with a Ten Frame Number Talk
January 26, 2016
These two first-grade teachers plan a visual number talk together using ten frames. After both try it, they reflect on the strategies that students used.
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
- Tags Number Talks
Series: Book Ideas October 13, 2015
Make Room for Halloween Math
Have some Halloween fun with the witch’s tale Room on the Broom. In this lively story by Julia Donaldson and Axel Scheffler, a witch makes room for her animal friends to ride on her broomstick……
- Topic: Number Sense, Number Operations
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
- Tags Animals, Seasonal, Place Value, Holiday, Books, Room on the Broom, Julia Donaldson, Axel Scheffler
Series: Focus on the Child June 15, 2015
Solving a Number Story with Child 14
In this one-on-one conversation, an English Language Learner in kindergarten explains his thinking while working through a number story about people getting on and off of the bus.
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten
- Tags English Language Learner, Correction, Child 14
Series: About the Collaborative March 26, 2015
Flexible Thinking Useful for Children and Teachers at Innovations Schools
"I was taught algorithms in school," says coach Liz Avila. "There wasn't much thought that went into the math that I did." The Innovations project aims to alter this "plug-and-chug" method of problem solving, through…
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
- Tags Number Talks
Series: About Early Math October 29, 2014
Beyond Base-10: Three Unusual Counting Systems
Counting in sets of ten is a skill that we develop and internalize at a very young age. However, surprisingly, there are dozens of different counting systems, many still in use today. Understanding and exploring…
- Topic: Counting, Measurement
- Age/Grade Level: Pre-K, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
Series: Video from Others September 29, 2014
How to Use a Rekenrek
The video gives a great overview of how to use a rekenrek. It also provides a few specific examples of problems that you could give to your students.
- Topic: Number Sense, Number Operations
- Age/Grade Level: Pre-K, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
- Tags Subitizing, Rekenrek
Series: Hear from the Experts August 14, 2014
With Second and First Grade Math Activities, Study Finds Concepts Matter
This study done by Vanderbilt University and the University of Louisville examined children's ability to learn just math skills and procedures versus explaining the underlying concepts beforehand. It found that children were more likely to…
- Topic: Number Operations
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
Series: About Early Math, About the Collaborative May 22, 2014
What School Change and Reform Looks Like with Early Math Collaborative
In this hour-long webinar, the Big Ideas of number sense are explored. This leads to a discussion about real-world change in the classroom, resulting in better understanding amongst teachers and more in-depth math comprehension amongst…
- Topic: Number Sense
- Age/Grade Level: Pre-K, Kindergarten, 1st Grade
Series: Focus on the Child April 7, 2014
Place Value: Meaning of the Digits with Child 14
This second grader has uncertainty about the meaning of the digits. He is working to construct the understanding that place determines the value of a number.
- Topic: Number Sense, Counting
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
- Tags Child 14, Place Value
Series: Book Ideas September 18, 2013
How “Big” is a Million?
Children like big numbers! Often before they can say all the numbers from one to one hundred reliably, children understand that one hundred is a lot. They quickly learn that one thousand is even more…
- Topic: Number Sense
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
- Tags Place Value, Books, How Much is a Million, David Schwartz, Steven Kellogg, Count to a Million, Jerry Pallotta
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