Here are some files I created with warm ups for my vocal students. These are based on the Royal Conservatory syllabus requirements.
All exercises are to be practiced using the vowels [a] [e] [i] [o] [u] (which sounds like ah, ay, ee, oh, ou). Do each exercise using one vowel, then try the same exercises again using the next vowel. Aim for beautiful, round vowel shapes, relaxed jaw, and a lifted soft palate.
Grade 1 Requirements
Grade 2 Requirements
Bouncing Warm Up