MOE has a scheme to ensure students who cannot afford computers will get computers with internet access from their home. Ask her to ask her school's Pupil Welfare HOD.
And, the school is equipped with enough computer labs which should be open to students in the afternoon for those who do not have computers at home to access the internet and do their work.
And, her teachers should be aware of her situation at home and give her allowance to submit her work later.
It's best to voice this out to the school because the teachers are suppose to ensure they handle such cases with care and sensitivity to the child's feelings.