15-minute session: read for 3 minutes, trace for 3, experiment for 7, and complete the check for 2. Spend longer whenever you need.
A decision chooses which statements run. The policy here is “ready at 80 or higher.” Trace 85, 79, 80, and 81 before running each case. The comparison includes 80. A program that prints the right answer for 85 may still be wrong at the boundary. Add a separate check rejecting scores below 0 or above 100; rejection and needing practice mean different things.
C begins at main. stdio.h declares output functions; puts adds a newline. Semicolons terminate statements. An integer and a pointer are different kinds of value.
#include <stdio.h>
#include <assert.h>
int main(void) {
int score = 85;
if (score >= 80) puts("Ready"); else puts("Practice");
return 0;
}
Expected result: Ready
Keep three notes: your prediction, the actual result, and why they match or differ. The completion check grades understanding; the practice task builds skill.