Slow speech is usually regarded as less than 110 wpm, or words per minute. Conversational speech generally falls between 120 wpm at the slow end, to 160 - 200 wpm in the fast range. People who read books for radio or podcasts are often asked to speak at 150-160 wpm.
Although a college degree is required for many teaching in early education, it's not unusual for a teacher to get about $11.75 an hour or $24,440 for the year. That salary puts a family of three or more below the federal poverty line. The state minimum wage now stands at $9 an hour and will rise to $10 in 2016.
For example, preschool, primary, secondary, and special education teachers earn an average of $54,740 per year. If we drop the preschool teachers, salaries rise even more. Elementary and middle school teachers average $56,420 per year and secondary (high school) teachers earn an average of $58,170. These figures place teachers comfortably above the national average of $46,440 reported by the BLS (link at the top of the list here).