The students are young enough to share Jacob's innocence, but old enough to understand why his family needs their help.
"He died of a gunshot at his school," said third grader Kamarai Phillips.
Jacob was shot when police say a teenager opened fire last week on a playground outside of Townville Elementary School in Anderson County.
Pallbearers at his funeral wore superhero costumes because his mother wanted people to focus on Jacob and his love for superheroes instead of the tragedy. His mother said Jacob was buried in a Batman costume because that was his favorite superhero.
Related: 6-year-old victim of South Carolina school shooting to have superhero funeral
Finley Road Elementary School took group pictures of their costumes and posted them online using the hashtags #SuperheroesForJacob and #PrayersForJacob.
"When we were walking down the hall this morning, one of my students was like 'Look at all these superhero shirts, I bet he'd really like to see these,'" said third grade teacher Ashley Hall.
Many other South Carolina schools honored the family on Wednesday and posted their pictures too, so that Jacob's family and teachers could see their support.
"I just remember thinking that could be one of us, that could be one of my students, just knowing that it hits so close to home," Finley Road guidance counselor Sally Berger said.
Berger said since school started, she's been teaching students to act like superheroes every day.
"They're talented and unique and special, just like every student at Finley Road," Berger said.
And those traits are just like Jacob too.