The 4th Grade Informatics curriculum in the second part of the year shifts toward abstract logic, algorithms, and coordinate systems, often utilizing resources like Natalia Morse or Olga Barna's textbooks. Spishi.ru functions as a "GDZ" (Ready-Made Homework Solutions) site, which, when used properly, acts as a check-and-balance tool for verifying logical approaches in algorithmic thinking and data organization. For more details, visit Spishi.ru .