homepage_icon.png
horizontal_bar.png

Thanks for visiting!  We now have a new book about the number line (see below) and a new website!  You can still order books and manipulatives right here (see the links below).  However, for a more comprehensive introduction to the Thinking Mathematically textbook series written by Dr. Jeff Frykholm, visit our new website at:

www.thinkingmathematically.com

horizontal_bar.png

The Rekenrek Book...

about_the_book.png
aboutauthor.png
whatisrekenrek.png

workshop.png
research.png
focal.png
reks.png
buynow.png
ahora.png


order PDF of book


horizontal_bar.png





Order Here






horizontal_bar.png



The second book in this series,

 Learning to Think Mathematically
with the
Number Line

 is now complete!  
 
To learn more about this book, as well as other books in Dr. Frykholm's

Thinking Mathematically

series,

Visit our NEW WEBSITE at:
www.thinkingmathematically.com






















vertical_bar.png


Rekenrek Book Cover

Authred by 

Dr. Jeff Frykholm

This book introduces teachers to a powerful tool called the Rekenrek.  Children use the rekenrek to:  
  • develop one-to-one correspondence;
  • subitize;
  • develop a solid undersatnding of fives and tens;
  • recognize the sturcture of our base-ten system;
  • "decompose" numbers based on familiar number groups;
  • see "inside" numbers, recognizing for example that 7 is "5 and 2 more";
  • develop powerful intuitive strategies for addition and subtraction;
  • become adept at using strategies like doubling, halving, adding on, etc.
horizontal_bar.png
                 
                NEW!


       Number Line Book

There is a growing body of research suggesting the importance of the number line as a tool for helping children develop greater flexibility in mental arithmetic as they actively construct mathematical meaning, develop number sense, come to understand number relationships, and develop powerful strategies for adition and subtraction.  Find out how effective this tool can be...  The number line is much more than a gool for counting to 100!  Interested?   Order here...

Questions?  Email us now.