The classroom was unusually quiet for a Tuesday morning, save for the rhythmic thump-thump of Masha’s sneaker against her desk leg. On her desk lay the formidable "Mathematics, 4th Grade" textbook by Moro, Part 1.
When the teacher, Vera Ivanovna, walked by, she tapped Masha’s notebook. "Good work on the diagram, Masha. Most students just guess, but you’re seeing the logic." The classroom was unusually quiet for a Tuesday
Masha stared at Problem No. 14 on page 42. It was a multi-step monster involving three trains, two stations, and a very confusing amount of coal. 4th Grade" textbook by Moro