Article in English: Suppose for this task we're memorizing how to figure out the sine, cosine, and tangent of the base angle of a right triangle. Mnemonics is simply a fancy word for a process you're probably familiar with from grade school. If you've ever used ROYGBIV to remember the colors (red orange yellow green blue indigo violet), or a nonsense sentence like "My Very Eager Mother Just Served Us Nine Pizzas" to remember the planets (Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto), you've used a mnemonic. If you have to memorize more items than you can make a short sentence or phrase for, this will be hard to work with; for this reason, the mnemonic method, like chaining, is best suited for limited numbers of items you have to memorize that can fit into a scheme. Mnemonics are better suited for memorizing a list of words, for instance; it is not as good for memorizing big lists without clear organization, like a list of phone numbers or the digits of pi. A mnemonic scheme is simply a "key" sentence or a phrase for what you have to memorize. For our example, we can make up a simple, easy to remember nonsense word. Your mnemonic serves as the 'key' to your memory. Scroll down to cover the previous list - can you remember what the mnemonic stands for?

Summary in Vietnamese:
Hình dung bạn cần phải nhớ công thức lượng giác cơ bản. Tìm hiểu thuật nhớ. Tìm hiểu xem thuật nhớ phù hợp với thông tin nào. Tạo ra mẹo nhớ. Tập nhớ mẹo nhớ của bạn và những thông tin mà bạn cần nhớ từ mẹo đó.