Russell Hobby, general secretary of the National Association of Head Teachers (NAHT), said the results were "excellent news".
"It shows the hard work that's going on in the system and has been going on for some years."
He said the majority of primaries will not be academies, which shows that schools can improve "no matter what their status".
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Warming up over the next few days. Mostly dry in the south, rain at times in the north.
A petition for a statue of rapper Missy Elliott to replace a Confederate monument in Virginia has been signed by more than 15,000 people.
Grace Mugabe, the wife of Zimbabwean president Robert Mugabe, has returned home from Johannesburg.