3

Famous Explorers

3

David Livingstone

3

Daniel Boone

3

Amerigo Vespucci

4

Dr. Why-Human Body

3

Juan Ponce de León

4

Maddy's Maryland Diary

3

John Cabot

3

Vasco da Gama

3

James Cook

2

My Five Senses

3

Magnetism

3

Leif Erikson

3

Astronauts

3

Isthmuses of the World

3

Ferdinand Magellan

4

Table Mountain, South Africa

3

Sacagawea

4

Maddy's Iowa Diary

3

Marco Polo

3

Edmund Hillary

Kindergarten

Probability

3

Christopher Columbus

3

Neil Armstrong

3

Zheng He

3

Gerard and the Credit Card

2

The Dog Who Found A Frog In A Log

2

Little Yogis

3

Jacques Cousteau

3

Ibn Battuta