分屏注意力涣散大学课堂

一张从昏暗大学阶梯教室后排观众席拍摄的写实照片，越过前景中三名学生后脑勺看向巨大的投影幕布。幕布分为三个垂直画面：左侧是竖屏的 [Subway Surfers gameplay]，画面中有角色在铁轨上奔跑收集金币，上方显示分数“001022”；中间是学术讲义幻灯片，标题为“[9.3: Infinite Geometric Series]”，内容包含数学文本：“Example 3: Find the sum of the infinite geometric series. 1/3 - 1/9 + 1/27 - 1/81 + ... Solution: The series is geometric with a = 1/3 and r = -1/3. Since |r| < 1, the infinite geometric series converges. S = a / (1 - r) = (1/3) / (1 - (-1/3)) = (1/3) / (4/3) = 1/4. The sum of the series is 1/4.”，页脚写有“[Dr. Larson]”、“[Calculus II]”、“11/14/2024”和“7 / 35”；右侧是竖屏的 [Minecraft parkour gameplay]，显示草地上方浮空的木块，右下角带有 TikTok 水印。幕布边缘后方可见教室黑板与集成吊顶。