But the school is not what she is used to. Painted walls and students' artwork no longer adorn the walls and hallways -- instead, tents set up in a battered building serve as their temporary classrooms.
"I walk for half an hour at least. The streets are devastated, full of ruins... It is difficult and sad," Haji said, wearing a torn shirt and patched trousers.
But "I am happy to return to my studies," added the young girl, who already dreams of becoming a doctor.
Haji is one of 900 students who are going to the Al-Louloua al-Qatami school, one of a number of these establishments that have opened their doors in a bid to allow children to resume their schooling for the first time since Israel's genocidal war on Gaza broke out.
"We don't have books or notebooks. The libraries are bombed and destroyed," said Haji, who lives in a displacement camp in the Tal al-Hawa area in Gaza City.
"There is nothing left," she added.
A month after a fragile ceasefire took effect, the UN agency for Palestinian refugees (UNRWA) and Gaza's education ministry announced that children had gradually begun returning to schools in areas not occupied by the Israeli army.
'Heavy labour'
More than 300 Palestinians have been killed since the ceasefire took effect on Oct. 10, according to Gaza’s Health Ministry. Before the truce, Israeli forces were killing that number in less than a week.
Sixteen-year-old Said Sheldan said he was full of joy at being able to return to school now that the bombing has slowed.
But "I don't have books, notebooks, pens or a bag. There are no chairs, electricity or water -- not even streets," he said.
But before going to the classroom, Sheldan has much more basic needs to attend to.
"Every morning, I have to collect water and wait in line for bread," said Sheldan, whose family has been displaced "10 times" and "no longer have a home".
Headmaster Iman al-Hinawi, 50, said the school hopes to provide books and other supplies soon and for free.
But she warned that Israel's war on Gaza has forced children to perform "heavy labour" to support their families, especially in cases where the breadwinner has been killed.
"They collect firewood, fetch water and stand in line for food" across the territory where the UN previously declared famine.
AFP correspondents have witnessed scenes where countless children, clutching plastic buckets, dented pans or even just plates, cry and shout as they jostle through massive crowds to collect food for their families.
In an effort to address the psychological distress the children have endured, Hinawi said the school has adopted new learning methods through playing.
Young girls compete by dancing to solve math equations and other children act out comedic scenes to recite poems on the curriculum.
But Faisal al-Qasas, in charge of the Al-Louloua al-Qatami school, said the children are constantly preoccupied by the queues for bread and water.
The school, having launched two shifts for 900 children, now uses "extracurricular activities to address the students' mental health" and help them resume their studies.
A critical moment
According to a UN assessment, 97 percent of Gaza's schools sustained some level of damage, including from "direct hits", during Israel's ongoing bombing of the strip, with most of them needing full reconstruction or major rehabilitation.
Israeli strikes have not spared Gaza's children, with thousands killed while sheltering in school buildings. More than 90 percent of Gazans have been displaced by Israel’s war, forcing families to crowd into any available public facilities.
With many schools now functioning as displacement centres, UNRWA has opened “temporary learning spaces” to allow classes to resume.
Last month, UNRWA chief Philippe Lazzarini said that more than 25,000 children have joined these new spaces, and some 300,000 would follow online classes.
But that still falls short of the education ministry's estimates of more than 758,000 students in the strip.
In the Al-Mawasi area in southern Gaza, local initiatives, some of which receive international support, are hoping to bring children back to school.
Qatar's Education Above All Foundation has launched the "Rebuilding Hope for Gaza" programme, aimed at supporting more than 100,000 students.
The programme includes distributing school supplies, ensuring access to the internet and electricity, and providing psychological support.
But even with that support, one such school in the Al-Mawasi area can only offer four subjects: Arabic, English, maths and science.
Hazem Abu Habib, from an initiative backed by the foundation, said "we aim to help as many students as possible resume their education, even if it's just with basic courses".
Before the war, Gaza was "completely free of illiteracy", he said.
But now "education is facing its most critical period".
*This story was edited by Ahram Online.
Short link: