Mark Giffen
Contributing Writer
Mark Giffen - Colin Parker
Mark holds a BA in English and a master's degree in elementary education from the University of Chicago. He taught school for 19 years in various parts of the world, including Sudan, Zambia, Honduras, England, Columbia, and the U.S. He now works in a public library in the Florida Keys.
Latest Articles
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2-Digit Multiplication for Kids: Cluster Problems
Cluster problems make 2-digit multiplication easy. Children use what they know about the distributive property to break harder problems into smaller parts.
Jun 20, 2010
- Mark Giffen
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World War II Fiction Books for Children
Two historical novels for middle grade readers confront the horrors of World War II through the eyes of children.
Jun 11, 2010
- Mark Giffen
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Books for Teens: Science Fiction Series for Boys
These science fiction series books for teens are packed with action and offer plenty to think about, too. They will appeal especially to teen boys.
Jun 4, 2010
- Mark Giffen
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Multiplication Games for Kids: Teaching the Distributive Property
In this interactive math game, children discover the distributive property as they practice multiplication with array cards.
May 29, 2010
- Mark Giffen
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Multiplication for Kids: Array Card Math Games
These interactive math games use array cards to teach multiplication facts and concepts in way that makes sense to children.
May 27, 2010
- Mark Giffen
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Hands-On Multiplication for Kids: Array Card Math
Array cards help kids learn multiplication facts in a way that makes sense to them. Kids build an understanding of concepts as they learn the times table.
May 23, 2010
- Mark Giffen
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Teaching Multiplication the Child-Friendly Way
Children learn multiplication by discovery in this hands-on activity that builds a solid understanding of factors, prime numbers, and square numbers.
May 17, 2010
- Mark Giffen
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Early Modern Humans: Homo sapiens
Homo sapiens were the first modern humans. Their early advances in technology and culture helped them adapt and thrive in a changing world.
May 15, 2010
- Mark Giffen
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