A student plans to use the attached text to write an argument paper about the need for increased reading instruction in school. Which three of the following sources would provide the best and most credible information she might also use?
Source 1: A chart showing the reading assessment scores of students in grades 2–12 over the past 25 years.
Source 2: A blog written by a 4th grade teacher about his experiences with student readers over his 15 year teaching career.
Source 3: A map showing the states with the lowest reading comprehension scores.
Source 4: A research paper about learning disabilities in early childhood.
Source 5: A study on the impact of budget cuts on classroom instruction.
Source 6: A newspaper article about the reading demands required by employers and their disappointment in the reading skills of the next generation of employees.