How should I format my UChicago Common App activities section to make the most of the 150-character descriptions?

Use the 150 characters to show action and impact, not to restate the club name. For UChicago, the activities section matters because the school reads applications holistically and values intellectual energy, initiative, and depth, so concise descriptions that show what you actually did are stronger than vague leadership labels. The best format is usually role + specific work + measurable result or scope.

A good description often follows a simple pattern: verb first, then what you led, built, created, researched, organized, or improved, then a number, outcome, or scale if possible.

Prioritize concrete details over full sentences. You do not need perfect grammar if abbreviations save space and keep meaning clear. Common App descriptions can be fragment-style, so wording like “Tutored 12 students in algebra; created review guides used schoolwide” works well.

For UChicago especially, highlight substance and originality. If an activity reflects academic curiosity or independent thinking, make that visible. If you held a title but your responsibilities were limited, emphasize what changed because of your work rather than the title itself.

Order activities by importance, not just prestige. Put the ones where you invested the most time, leadership, or impact near the top. If an activity is unusual or especially meaningful, the description should clarify it quickly so a reader immediately understands why it matters.

A useful rule is this: after reading each entry, an admissions reader should know what you did, how well you did it, and who benefited. Words like “organized,” “founded,” “published,” “designed,” “mentored,” “raised,” “competed,” and “expanded” usually do more work than generic phrases like “participated in” or “helped with.”