Science A Closer Look Spanish Leveled Readers deliver chapter science content in Spanish to help address the individual needs of all students. They are available in four levels: Approaching Level (1-2 years below grade level), Beyond Level (1-2 years above grade level), On-Level, and English Language version of the On-Level Reader. Readers support differentiated instruction and will reinforce reading skills and strategies while promoting science understanding. They come in packages that contain six identical books for the level ordered.