It can be hard to go from regular life to studying with the flip of a switch. Give your brain a chance to change from TV-watching mode to reading and studying mode. Try flipping through your textbook before you start, so you can get into the mind set. Re-copying your notes quickly can also be extremely effective. The notes you copied down Friday afternoon probably aren't imprinted on your mind yet. It's an easy way to study and get your thinking cap fitted properly. Lots of people find the most effective way to approach homework is to start with the toughest tasks and get them out of the way. If you absolutely hate math, but get a kick out of reading for English, do your math homework first and treat yourself afterward with the easier English reading. As you get more worn down over the homework hours, the work will get easier. Alternatively, you might find it more effective to do the most time-consuming tasks first. These might be the same as the hardest, but not necessarily. If you struggle to focus while you're doing something repetitive, speaking your math problems out loud can help to keep your mind centered on what you're doing. This will help you keep from getting distracted. If you feel silly, you don't have to speak them very loudly. Just whisper. When you're trying to puzzle out what to do with the problem, speak out loud as well. Hearing what you're thinking can help with creativity. Don't switch between assignments. Instead, finish one before you move on to the next. According recent studies, multitasking temporarily drops your IQ and your cognitive abilities on each task, making the work even tougher.  Check things off as you go. As soon as you have completed a task, put a check next to it-you can even have several check boxes for different parts of the task. Being able to put a tick next to something and think: I've done this, is a great feeling, and can encourage you to keep going. If you really can't figure something out, put it aside for a while. Staring at something useless only gets you...

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Write a summary of the previous text in Vietnamese:
Hãy dành một phút để “bật công tắc” trí não bạn. Hãy làm những bài khó nhất trước tiên. Hãy cố nói to khi làm bài tập về nhà. Hoàn tất một bài trước khi chuyển sang làm bài khác. Hãy biết lúc nào phải dừng lại.