Twelve-year-old Elliot died after being stabbed in the chest with a knife in the grounds of St Patrick's College at Shorncliffe on Monday.
The fellow student accused of his slaying spent the night in police custody and is due to face the Brisbane Children's Court later on Tuesday.
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Students and staff are gathering in bayside Brisbane for a memorial service for Elliot from 8am (AEST) on Tuesday.
But while family and friends mourn, police have acted to remove offensive posts from tribute sites set up on social networking sites after Elliot's death.
Some of the posts were violent and explicit, including images of torture and pornography.
Queensland police on Tuesday said the content had been taken down and those responsible for the posts would be traced and prosecuted.
The school remains open on Tuesday, with counselling being offered to all students and staff.
As students head back to the classroom at other schools, an adolescent psychologist has told parents it's important they discuss what happened to Elliot with their own kids.
Dr Michael Carr-Gregg said children could be feeling a range of emotions after the attack, including fear that something similar might happen to them.
"I think this sort of trauma shatters the idea of the world being an orderly, safe place," he told the ABC.
"Many children will react very poorly to this, with fear, anger, disbelief, sadness ..."
He said it was important for parents to give their children the facts about what happened, but stress it was a very rare event and that Australia is one of the safest countries in the world.
"Encourage children to talk about their feelings," he said.
Their exposure to media reports about the killing should also be limited.
"Children, especially very young children, if they see it over and over again, they could believe it's happened again," he said.
