: Focused on vowel shifts, silent consonants, and unstressed endings.

: Allowing students to verify their work after completing assignments independently.

: Detailed study of parts of speech (nouns, verbs, adjectives).

: Practice in identifying sentence parts and correctly placing commas.

The , authored by Buneev, Buneeva, and Komissarova , are a core component of the "School 2100" educational system. These materials are designed to reinforce grammar, spelling, and punctuation through specialized exercises that go beyond standard textbook tasks. Purpose and Structure

: Emphasis on basic phonetics, word structure, and the logic behind "checked" vowels.

: Many answer keys include brief explanations of why a specific spelling or punctuation mark is used, reinforcing the lesson.