Khan Academy is a resource students can use to study independently. Currently, they can learn math and grammar on this website.
This resource is mainly for early finishers and students/families that want to study more at home.
Students log in using their student Horizon email addresses.
Website here :
https://www.khanacademy.org/
IOS APP (JP)
Link
IOS APP (US)
Link
GOOGLE PLAY
Link