Identifying "чистый родник" (clean spring) vs. "чистые родники" (clean springs) to practice plural endings.
The changeable part used for grammatical connection. Parts of Speech: Nouns: Gender, number, and basic case identification. reshebnik po russkomu iazyku za 3 kl zelenina
Exercises focusing on moral lessons, such as "nature teaches us patience". Identifying "чистый родник" (clean spring) vs
ГДЗ (ответы) Русский язык 4 класс Зеленина reshebnik po russkomu iazyku za 3 kl zelenina
Review of speech types (oral vs. written) and the importance of language in culture.
Sites like Slideshare provide scanned pages of the completed exercises.