Here is a great video about clauses. It’s just one of many video’s on that you can watch to improve and learn about grammar. I believe that Mr. Thoth is teaching English grammar at about a grade 9 level (to about 14 year old students). I don’t know about all areas, but Canadian schools mostly focus on reading and writing throughout elementary school. The teacher corrects your grammar, but doesn’t really offer much of an explanation. He or she just corrects it. Then in grade 9 or 10, students will start to learn basic parts of grammar, similar to how math class is taught. It’s really like math class for English! This video is tough, but it will teach you something if you are patient and willing to listen!

Don’t forget you can look on the right side to see more videos about English grammar!