Bortolotti, Dan <br/><br/>
Guided Reading: What makes a planet a planet? 

 -  il. 
 - 2007 
 - Literacy Place for the early years .
<br/><br/> Guided Reading Level: R<br/>For many years, scientists used the same definition for what a planet is. After the discovery of a shiny object at the edges of the solar system, everything changed, including the definition of what makes a plantet. 
<br/><br/><label>ISBN: </label>9780779166930 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teacher's Research<br/>Education and Teaching<br/>Guided Reading<br/>Education, Bilingual<br/>Educational tests and measurements