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Math Mammoth Division 1: Divide, and Conquer the Concepts.

70 pages
(of which 45 are lesson pages)
Price: $3.50 download

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(PDF download)

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at Lulu - $9.90, b&w

Sample pages (PDF)
Contents and Introduction
Division as Making Groups
Division and Multiplication
Division and Multiplication Facts
Zero And One in Division
When Division is Not Exact and Remainder
Divisibility

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This text is a self-teaching worktext to learn basic division concept after studying multiplication (as in third grade).

Division concept in itself is not very difficult, but children can have difficulties in related concepts, such as remainder, divisibility, and later on even factoring and long division (factoring and long division are not topics in this book).

Division 1: Divide, and Conquer the Concepts lays a good foundation in basic division, cementing the link between multiplication and division, and then solidly presents the concepts of remainder and divisibility. A good understanding with these helps the student later to understand factoring and long division.

The book provides plenty of practice and stresses understanding of concepts. I don't wish the student to memorize procedures without understanding the 'why' (rote memorization).

For example, when studying remainder, the student first finds the remainder with help of pictures - which is equivalent to using manipulatives. Then he explores the pattern found in dividing subsequent numbers by the same number, such as 25 ÷ 3, 26 ÷ 3, 27 ÷ 3, 28 ÷ 3, etc. After that, the method for finding remainder is given as, "Look at the difference", and finally the typical school-book method with subtraction is presented.

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NOTE: if you purchase one of the package deals at Kagi store, you will get Soft-Pak in the download or included on the CD for FREE.

Soft-Pak may also be purchased at great 75% discount without a Math Mammoth purchase - click here for details.

How and where to order

You can buy Math Mammoth books as downloads at

• Kagi store - all of the ebooks and CDs. Kagi accepts all major credit cards, Paypal, check, cash, money order, purchase order, and a wire transfer. I maintain four different order pages at Kagi:
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  • another for the Golden and Green Series, and
  • third for the LightBlue complete curriculum products, and
  • one more for the Packages (CDs or downloads).
  • And yet an order page for Make It Real Learning workbooks.

  Kagi accepts all major credit cards, checks, Paypal (USD), money orders, and even cash. Read more about the payment methods here. Please see Kagi Shopper Help for any other questions about the ordering process.

  After completing the order at Kagi, you will receive an email with download links for each book you bought, or for a zip file for the packages. You click on the links and download the books to your computer's hard drive. That's it!

  In case of any problems with the download, you can always email me, and I can email the books to you directly. My contact info will be in the email you receive.

  
   
• CurrClick.com - all Blue, Golden, and Lightblue series books (downloads). Credit cards, Paypal.
• The Old Schoolhouse Store - the Blue Series ebooks. Credit cards, Paypal.
• Lulu - printed copies for the Blue, Golden, and Light Blue series books.
• Winterpromise - printed copies and CDs for the LightBlue series.

All the books are available for *nearly instant download.
*Order processing at Kagi takes 1-2 hours; I do not know how quick it is at the other stores.

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Printed copies

You can buy printed copies of the Blue, Golden, and Light Blue series books at Lulu.com. You can find a links to the printed copy also on each individual book's page (right sidebar).

Winterpromise sells printed copies for the Light Blue series books along with CDs.

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By purchasing any of the books, permission IS granted for the teacher (or parent) to reproduce this material to be used with his/her students in a teaching situation; not for commercial resale. However, you are not permitted to share the material with another teacher.

In other words, you are permitted to make copies for the students/children you are teaching, but not for other teachers' usage.