(18) Using memory games and tools is another way to improve study habits. (19) Using these tools and games can help students better retain information. (20) It also makes learning more fun, by reducing stress levels. (21) Flashcards with key points or ideas can be very helpful when used alone or with a study partner. (22) Mnemonic devices—silly sayings to help students recall complex concepts—are also helpful tools for reducing stress and improving test performance. (23) An example of a mnemonic device is “Every Good Boy Deserves Fudge” to help music students remember the note names for the lines of the treble clef staff (EGBDF).

What change, if any, should be made to sentence 20?

(24) The second step to reducing test anxiety is to use relaxation techniques. (25) The first relaxation technique that is useful for test anxiety is visualization. (26) This involves choosing a favorite place or event. (27) When test anxiety symptoms appear, students can close there eyes and visualize themselves in that favorite place or at that favorite event. (28) The students should focus on sensory information—sights, sounds, smells, etc. (29) This refocuses the attention of the brain and reduces anxiety.

What change, if any, should be made to sentence 27?