You may find Khan Academy interesting. This is an American program so will present maths (or math) in new ways for you. If you creates a free account, you can track your learning using the Mastery Points awarded for completing the quizzes in each unit. A UK Year 6 is a Grade 5 on their site: 5th grade | Math | Khan Academy
Year 6 and P7 Maths - Home Learning - BBC Bitesize also has a series of lessons you can use to revise from. You may wish to go to the Year 5 area too.
Pobble365 has daily reading questions and writing activities based upon a picture prompt. We love to use these in school. If you read them off the screen or download all of the daily activities as a PDF (look for the PDF button). Pobble have also produce a list of 25 non-screen based writing activites. You can download the file below and pick one or more to have a go at.
Every-Day Edits has a lots of spot-the-error activities, where you need to read and correct a piece of text. Perfect for SPaG practice. The incorrect text and answers are both on one page; can you find all 10 errors?
Being able to type with confidence and at speed is a great life-skill and will be really helpful at High School. The BBC have a great program Dance Mat Typing that will take you from zero to hero with your typing.
For extra interest, Crash Course Kids has fantastic playlists of their Science and Engineering videos: Crash Course Kids - YouTube After watching the video you could write a summary or make a poster to explain what you learnt. You could even have a go at making your own lesson and teacher a member of your family about the subject!