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If your professor provides you with their lecture slides before class, you can use these to take your notes! This is one of the easiest methods (though it does require a bit of prep before class) and is helpful as it allows you to reflect back on your own notes as well as your professors thoughts. Additionally, if the lecture is moving too quickly, you can easily go back and check what you missed and follow up later.
How it works:
Pretty easy! When you print your notes, select "3 slides" under settings - you'll see three slides on the left and lines on the right for you to write down your thoughts, questions, comments etc.