Anmeldern

Adventures in Science

Year unknown Nel Yomtov, Mark Weakland, Janet Slingerland, Sean O'Neill, and Timothy Foss

Adventures of Perseus

Year unknown Mark Weakland, Estudio Haus (Firm) Staff, and Estudio Haus

Ancient Myths

Year unknown Estudio Haus, Mark Weakland, Blake A. Hoena, and Matt Chandler

Ancient Myths Classroom Collection

Year unknown Mark Weakland, Matt Chandler, and Estudio Haus

Armored Dinosaurs

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Baseball Records

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Basketball Records

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Breathing Trees

Year unknown Mark Weakland and Chris Jevons

Bubbles Float, Bubbles Pop

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Captain Kidd's crew experiments with sinking and floating

Year unknown Mark Weakland, Troy Cummings, Paul Ohmann, and Terry Flaherty

Clang!

Year unknown Mark Weakland and Loic Billiau

Do-4U the robot experiences forces and motion

Year unknown Mark Weakland, Michael Moran, Paul Ohmann, and Terry Flaherty

Duck-Billed Dinosaurs

Year unknown

Extreme Sports Records

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Fast, strong, fearless

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Flintstones Explain Simple Machines

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Flying Reptiles

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Football ABC

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Football colors

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Football opposites

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Football Records

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Football Words

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Fred Flintstone's adventures with inclined planes

Year unknown Mark Weakland and Alan Brown

Fred Flintstone's adventures with levers

Year unknown Mark Weakland and Christian Cornia

Fred Flintstone's adventures with pulleys

Year unknown Mark Weakland and Paco Sordo

Fred Flintstone's adventures with screws

Year unknown Mark Weakland and Loic Billiau

Fred Flintstone's adventures with wedges

Year unknown Mark Weakland and Christian Cornia

Fred Flintstone's adventures with wheels and axles

Year unknown Mark Weakland and Alan Brown

Gears Go, Wheels Roll

Year unknown

Gut Bugs Dust Mites and Other Microorganisms You Cant Live Without Fact Finders Nasty But Useful Science Paperback

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Hockey counting

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Hockey patterns

Year unknown

Hockey Records

Year unknown

Hockey shapes

Year unknown

Horned Dinosaurs

Year unknown

How Does Wi-Fi Work?

Year unknown

How Heavy?

Year unknown Mark Weakland, Bill Bolton, Terry Flaherty Ph.D. , and Terry Flaherty

How Tall?

Year unknown Mark Weakland, Igor Sinkovec, Terry Flaherty Ph.D. , and Terry Flaherty

How to Prevent Reading Difficulti...

How to Prevent Reading Difficulties, Grades PreK-3

Year unknown

In the Science Lab

Year unknown Eric Braun, Robin Boyden, Anthony Briglia, and Mark Weakland

Kaboom!

Year unknown Mark Weakland, Loic Billiau, Paco Sordo, Warner Bros., and Warner Brothers

Leaders Doing Headstands

Year unknown Mark Weakland and Jeffrey Ebbeler

Leaders Doing Headstands

Year unknown Rachel Ruiz and Mark Weakland

Leaders Doing Headstands

Year unknown Mark Weakland, Oksana Grivina, Patrick Ballesteros, Thomas Radcliffe, and Daniel Duncan

Leaders Doing Headstands Classroo...

Leaders Doing Headstands Classroom Collection

Year unknown Mark Weakland and Rachel Ruiz

Leaders Doing Headstands Classroo...

Leaders Doing Headstands Classroom Collection

Year unknown Mark Weakland and Jeffrey Ebbeler

LOL Physical Science

Year unknown Agnieszka Biskup, Jennifer Swanson, Mark Weakland, Bernice Lum, and Alec M. Bodzin

LOL Physical Science Classroom Co...

LOL Physical Science Classroom Collection

Year unknown Mark Weakland, Agnieszka Biskup, Bernice Lum, Alec Bodzin, and Jennifer Swanson

Long-Necked Dinosaurs

Year unknown

Magnets push, magnets pull

Year unknown

Monster Science

Year unknown Agnieszka Biskup, Jodi Wheeler-Toppen, Terry Collins, Janet Slingerland, Mark Weakland, Jody Jensen Shaffer, Gervasio Benítez Flocco, Carlos Aón, Christopher L. Harbo, Cristian Mallea, and Gervasio

Onion juice, poop, and other surprising sources of alternative energy

Year unknown

On My Way to School

Year unknown Mark Weakland and Rea Zhai

Pass, catch, tackle

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Pucks, Clubs, and Baseball Gloves

Year unknown Catherine Ipcizade, Blake A. Hoena, Matthew Loveridge, and Mark Weakland

School Rules

Year unknown Mark Weakland, Rea Zhai, Kat Uno, Nina de Polonia - Nill, and Thomas Kingsley Troupe

School Rules Classroom Collection

Year unknown Mark Weakland, Rea Zhai, Kat Uno, Nina de Polonia - Nill, and Thomas Kingsley Troupe

Science Basics

Year unknown Mark Weakland and Jody S. Rake

Science Basics Classroom Collection

Year unknown Mark Weakland and Jody S. Rake

Science Basics Pack a Of 4

Year unknown Jody S. Rake and Mark Weakland

Science Starts

Year unknown

Science Starts Classroom Collection

Year unknown

Scooby-Doo!

Year unknown Mark Weakland, Scott Gross, and Terry Flaherty

Scooby-Doo! an addition mystery

Year unknown Mark Weakland, Scott Gross, and Terry Flaherty

Scooby-Doo! and the Buried City o...

Scooby-Doo! and the Buried City of Pompeii

Year unknown Mark Weakland and Christian Cornia

Scooby-Doo! and the Cliff Dwellings of Mesa Verde

Year unknown Mark Weakland and Christian Cornia

Scooby-Doo! and the Pyramids of Giza

Year unknown Mark Weakland and Dario Brizuela

Scooby-Doo! and the Ruins of Mach...

Scooby-Doo! and the Ruins of Machu Picchu

Year unknown Mark Weakland and Dario Brizuela

Scooby-Doo! and the truth behind mummies

Year unknown Mark Weakland and Scott Neely

Scooby-Doo! and the truth behind vampires

Year unknown Mark Weakland and Christian Cornia

Scooby-Doo! and the truth behind werewolves

Year unknown Mark Weakland and Dario Brizuela

Scooby-Doo! an even or odd mystery

Year unknown

Scooby-Doo! a number comparisons mystery

Year unknown Mark Weakland, Scott Gross, and Terry Flaherty

Scooby-Doo! a subtraction mystery

Year unknown Mark Weakland, Scott Gross, and Terry Flaherty

Scooby Doo! The Disappearing Doughnuts - turkish edition

Year unknown

Scooby-Doo unmasks monsters

Year unknown

Seeds Go, Seeds Grow

Year unknown

SI Kids Rookie Books

Year unknown

Smash!

Year unknown Mark Weakland, Christian Cornia, and Andrés Ricci

Soccer Records

Year unknown

Solve It with Scooby-Doo! : Math

Year unknown Mark Weakland and Scott Gross

Stadium, jersey, player

Year unknown

Super core

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Super Spellers

Year unknown

Super Spellers Starter Sets

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The lonely existence of asteroids and comets

Year unknown Mark Weakland, Carlos Aón, Laura Lazzati, and Leslie Bleamaster

The solid truth about matter

Year unknown Mark Weakland, Bernice Lum, and Alec Bodzin

This Is My School

Year unknown Mark Weakland and Nina de Polonia - Nill

Thud!

Year unknown Mark Weakland, Christian Cornia, and Andrés Ricci

Two-Legged, Meat-Eating Dinosaurs

Year unknown

Unearthing Ancient Civilizations ...

Unearthing Ancient Civilizations with Scooby-Doo! Classroom Collection

Year unknown Mark Weakland, Christian Cornia, and Dario Brizuela

Unmasking Monsters with Scooby-Doo!

Year unknown Terry Collins, Mark Weakland, Christian Cornia, Dario Brizuela, and Scott Neely

Wacky Comparisons

Year unknown Jessica Sarah Gunderson and Mark Weakland

West End Treehouse Mystery, The

Year unknown

What Is Light?

Year unknown

What Is Magnetism?

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What Is Magnetism?

Year unknown

When Amelia Earhart Built a Rolle...

When Amelia Earhart Built a Roller Coaster

Year unknown Mark Weakland and Oksana Grivina

When Bill Gates Memorized an Encyclopedia (Leaders Doing Headstands)

Year unknown Mark Weakland and Jeffrey Ebbeler

When Eleanor Roosevelt Learned to Jump a Horse

Year unknown Mark Weakland and John Joseph

When Martin Luther King Jr. Wore Roller Skates (Leaders Doing Headstands)

Year unknown Mark Weakland and Patrick Ballesteros

When Neil Armstrong Built a Wind Tunnel

Year unknown Mark Weakland and Luciano Lozano

When Ruth Bader Ginsburg Chewed 100 Sticks of Gum

Year unknown Mark Weakland and Daniela Volpari

When Thomas Edison Fed Someone Worms

Year unknown Thomas Radcliffe and Mark Weakland

When Walt Disney Rode a Pig

Year unknown Mark Weakland and Pablo Pino

When Wilma Rudolph Played Basketball

Year unknown Daniel Duncan and Mark Weakland

Whoosh!

Year unknown Mark Weakland, Alan Brown, Paco Sordo, Warner Bros., and Warner Brothers

Whoosh, crunch, roar

Year unknown

Who's Who at School

Year unknown Mark Weakland and Nina de Polonia - Nill

Wile E. Coyote, Physical Science ...

Wile E. Coyote, Physical Science Genius Classroom Collection

Year unknown Mark Weakland, Paco Sordo, Warner Bros., and Warner Brothers

Wile E. Coyotes Physical Science ...

Wile E. Coyotes Physical Science for Super Geniuses in Training

Year unknown Mark Weakland, Suzanne Slade, Christian Cornia, Andrés Martínez Ricci, and Loic Billiau

Yogi Bear's Guide to Animal Tracks

Year unknown Mark Weakland, Warner Bros Staff, Advocate-Art, Christian Cornia, and Warner Brothers

Yogi Bear's Guide to Bugs

Year unknown Mark Weakland, Advocate-Art Staff, Bryan Beach, Warner Warner Bros., Bryan David Beach, and Warner Brothers

Yogi Bear's Guide to Plants

Year unknown Mark Weakland, Advocate-Art Staff, Christian Cornia, Warner Bros Staff, and Warner Brothers

Yogi Bear's Guide to Rocks

Year unknown Mark Weakland, Warner Bros Staff, Advocate-Art Staff, Bryan Beach, Bryan David Beach, and Warner Brothers

Yogi Bear's Guide to the Great Ou...

Yogi Bear's Guide to the Great Outdoors

Year unknown Mark Weakland, Bryan David Beach, and Christian Cornia

Zombies and Electricity

Year unknown Mark Weakland, Diego Jok, Joanne Olson, and Inc. Staff Wilkinson Studios

Zombies and forces and motion

Year unknown Mark Weakland and Gervasio Benítez Flocco

Zoom!

Year unknown Mark Weakland and Paco Sordo