Where did you get the number of 22 teachers at Hayden Meadows? There are 601 enrolled students and 50 full-time teachers. This information does not include part-time teachers, teacher aids, administration, etc.
I obtained this information from the link you provided above. Unfortunately, CDA School District #271's website is down right now so I can't check their site to verify the information.
Any other questions? Let me know.