Schools are plagued by language problems with at least 30 percent of Grade One pupils not being taught in their home language, it was reported on Thursday.

"When learners do not speak the language of instruction, they find learning difficult and academic achievement is undermined," a national education evaluation and development unit study found, according to a report in The Times.

The study, of pupils' first three years at school, also found significant differences...read more here: Schools are plagued by language problems