It comes as a survey of teachers revealed that the most common items which pupils are lacking include paper and pens and pencils, reading books, and maths and science equipment.
One respondent to the survey described pupils submitting work or drawings done on flyers or sheets of toilet paper.
The National Education Union (NEU) and the Daily Mirror are behind the new campaign, which has begun contacting those schools with the highest numbers of free school meal pupils in England and Wales in order to offer support.
The NEU has established an initial £1m fund to support the campaign and schools will be offered funding of £500, £1,000 and £1,500 depending on pupil numbers. The union is also seeking donations from the public.
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