With a focus on number and operations, this resource provides the know-how to use leveled texts to differentiate instruction in mathematics. 15 different topics are featured. The high-interest text is written at four different reading levels with matching visuals. Practice problems are provided to reinforce what is taught in the passage. Teacher Resource CD features a modifiable version of each passage in text format and full-color versions of the texts and image files. Resource is designed for children in third-grade through 12th-grade.