: There are several versions of the 4th-grade workbook (Zankov system); users must be careful to match the GDZ to their specific year of publication.
: Provides a baseline for complex environmental science topics that 4th graders might find abstract. Cons : : There are several versions of the 4th-grade
: Students may "mindlessly copy" answers rather than engaging with the thought-provoking nature of Dmitrieva's curriculum. : There are several versions of the 4th-grade