Comparing the Red Edition and the Purple Edition
What's the Same?
The Red Edition and Purple Edition both have the
- same key science content (found on state standards and tests)
- same science vocabulary
- same science and literacy support features
- same graphics for key science content
- same strong relationship between text and visuals
- same number of pages—24 pages
- same concepts found on the same page numbers
What's the Difference?
Red Edition
- Reading level: grade 3–4
- One-column format
- Fewer words per page than the Purple Edition
- Shorter, simpler sentences than the Purple Edition
- Fewer, but larger, photos than the Purple Edition
Purple Edition
- Reading level: grade 4 –5
- Two-column format
- More words per page than the Red Edition
- Longer, more complex sentences than the Red Edition
- More, but smaller, photos than the Red Edition
Additional Examples
Sound Energy - Red
Sound Energy - Purple
Cause and Effect - Red
Key Science Content - Purple
Section Opener - Red
