Jamie Oliver，the famous chef，thinks it's time for a revolution，one that takes place right on your plate．

Today is the fourth annual Food Revolution Day，a day of healthy-eating awareness．It is part of his global campaign to make schools around the world teach healthy cooking and eating as a must of their courses．

"I think that all you guys，should be taught how to cook delicious，fresh food from scratch----not complicated food，but nice，simple，everyday meals that are going to inspire，uplift，and make you and your future families live happier，healthier lives，"Oliver told TFK in an e-mail．

According to the global statistic that 42million children under the age of five are overweight，Oliver believes that this right is more important than ever．

Parts of Oliver's goal with this year's Food Revolution Day is to get one-and-a-half million people to sign his online petition（请愿书） for food education．Along with Oliver，musicians Ed Sheeran and Paul McCartney are urging people to read the petition，sign it，and share it to help reach their goal．

In the United Kingdom，Oliver and other activists found that food served in schools was often just unhealthy．The School Food Plan was created to address the problem．It took effect in 2013and requires the UK's 22，000schools to serve healthy lunches while making food education a required part of classroom education for students aged 5-14．Free school lunches are also provided for all 5-，6-，and 7-year-olds under this plan．

Students at Charlton Manor Primary School get a cooking lesson in their school kitchen．Tim Baker，head of this school，always believes in the importance of teaching healthy eating，and wants to share his beliefs with students．He says the School Food Plan helped him put pressure on school food providers to improve food quality and healthiness．

"The School Food Plan has been fantastic，"Jamie Oliver says．"I'm hoping we're at a point where the U