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He had created it fifteen years ago for a student with a learning disability. Step-by-step solutions for ten project networks, from simple to complex. Forward passes in green, backward passes in red, floats in blue. A work of pedagogical art.
He walked into Lecture Hall 3 to find 80 students looking at him with a mixture of guilt and hope. He said nothing. He wrote a simple network on the board: five activities, two paths, one obvious critical path. ejercicios de cpm resueltos pdf
Then, from the back row, a quiet voice: " The critical path is A-C-E, with duration 18 days. Total float on B is 3 days, on D is 0? No, on D is... wait... " He had created it fifteen years ago for
Below it, he wrote:
Professor Julián Carranza never thought a PDF would change his life. At 47, with two decades of teaching civil engineering project management at the Universidad del Norte, he had seen every excuse, every pleading email, every desperate midnight request. A work of pedagogical art
His daughter, Lucía, a first-year student at a different university, called him at midnight, crying. " Papá, I don't understand CPM. My professor is terrible. If I fail this exam, I lose my scholarship. Please... send me a PDF with solved exercises. I know you have them. "