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Danny O''Leary has written 8 work(s)
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Cover for 9780716766056 Cover for 9780716766070 Cover for 9780716765547 Cover for 9780716765554 Cover for 9780716765561 Cover for 9780716765578 Cover for 9780716765332 Cover for 9780716765523 Cover for 9780716790068 Cover for 9780716765264 Cover for 9780716765226 Cover for 9780716765042
Discusses what competition is, how to deal with it in a healthy way, and what to do when competition takes a nasty turn.

Paperback:

9780716766056 | W H Freeman & Co, August 1, 1995, cover price $4.95 | About this edition: Fenton's father and his dig team must solve a dinosaur puzzle to win a large research grant in a competition.

Prebinding:

9781417641581, titled "Competition" | Turtleback Books, September 1, 2004, cover price $24.50 | also contains The Competition | About this edition: Discusses what competition is, how to deal with it in a healthy way, and what to do when competition takes a nasty turn.

cover image for 9780716766070
While with his father on a trip to the natural history museum in New York, Fenton solves the mystery surrounding the old paleontologist in the attic.
By B. B. Calhoun and Danny O'Leary (illustrator)

Paperback:

9780716766070 | W H Freeman & Co, August 1, 1995, cover price $4.95 | About this edition: While with his father on a trip to the natural history museum in New York, Fenton solves the mystery surrounding the old paleontologist in the attic.

cover image for 9780716765547
Math detectives George Frankly and Pat Tuesday take a wrong turn going to a mystery weekend and come to a manor where they need their math skills to solve a real mystery

Hardcover:

9780716765547 | W H Freeman & Co, April 1, 1995, cover price $12.95 | About this edition: Math detectives George Frankly and Pat Tuesday take a wrong turn going to a mystery weekend and come to a manor where they need their math skills to solve a real mystery

Paperback:

9780716765554 | W H Freeman & Co, December 1, 1994, cover price $3.95 | About this edition: Math detectives George Frankly and Pat Tuesday take a wrong turn going to a mystery weekend and come to a manor where they need their math skills to solve a real mystery

cover image for 9780716765561
Using clues derived from mathematical knowledge, Mathnet detectives Pat Tuesday and George Frankly solve a case involving a ventriloquist's stolen dummy and a suitcase filled with counterfeit money.

Hardcover:

9780716765561 | W H Freeman & Co, April 1, 1995, cover price $12.95 | About this edition: Using clues derived from mathematical knowledge, Mathnet detectives Pat Tuesday and George Frankly solve a case involving a ventriloquist's stolen dummy and a suitcase filled with counterfeit money.

Paperback:

9780716765578 | W H Freeman & Co, December 1, 1994, cover price $3.95 | About this edition: Using clues derived from mathematical knowledge, Mathnet detectives Pat Tuesday and George Frankly solve a case involving a ventriloquist's stolen dummy and a suitcase filled with counterfeit money.

cover image for 9780716765332
Provides the answers to questions relating to the important-and-curious things your body does, such as why you get goosebumps, butterflies in your stomach, sweaty palms, and more
By Jeanne K. Hanson and Danny O'Leary (illustrator)

Hardcover:

9780716765332 | W H Freeman & Co, August 1, 1994, cover price $14.95 | About this edition: Provides the answers to questions relating to the important-and-curious things your body does, such as why you get goosebumps, butterflies in your stomach, sweaty palms, and more

Paperback:

9780716765523 | W H Freeman & Co, August 1, 1994, cover price $8.95 | About this edition: Provides the answers to questions relating to the important-and-curious things your body does, such as why you get goosebumps, butterflies in your stomach, sweaty palms, and more

cover image for 9780716765264
Explains genetics and how DNA works through imaginary newspaper columns, letters from parent to child, and other scenarios
By Billy Aronson and Danny O'Leary (illustrator)

Hardcover:

9780716790068 | W H Freeman & Co, September 1, 1993, cover price $19.95 | About this edition: Explains genetics and how DNA works through imaginary newspaper columns, letters from parent to child, and other scenarios

Paperback:

9780716765264 | W H Freeman & Co, April 1, 1994, cover price $13.95 | About this edition: Explains genetics and how DNA works through imaginary newspaper columns, letters from parent to child, and other scenarios

When actor Fatty Tissue wills his mansion to his parrot, Mathnet detectives George Frankly and Kate Monday find themselves investigating cryptic messages, a birdnapping, and a haunted estate, in a mystery that also explores math concepts.

Hardcover:

9780716765288 | W H Freeman & Co, April 1, 1994, cover price $10.95 | About this edition: Mathnet detectives Kate Monday and George Frankly use their math skills to solve the mystery of where deceased comic Fatty Tissue hid his fortune

Paperback:

9780716765226 | W H Freeman & Co, April 1, 1994, cover price $3.95 | About this edition: Mathnet detectives Kate Monday and George Frankly use their math skills to solve the mystery of where deceased comic Fatty Tissue hid his fortune

cover image for 9780716765042
Mathnet detectives George Frankly and Pat Tuesday crack a code and solve the mystery surrounding the phenomenal performance of a minor league pitcher

Paperback:

9780716765042 | W H Freeman & Co, August 1, 1993, cover price $3.95 | About this edition: Mathnet detectives George Frankly and Pat Tuesday crack a code and solve the mystery surrounding the phenomenal performance of a minor league pitcher

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