Under the Influence

By: ChinLin Pan, Hymi Ashenafi, Taylor Turner and Keneshia Colwell

November 20, 2014

Dallas Independent School District

Dallas ISD

– Dallas ISD is the second-largest public school

district in Texas and the 14th largest district in

the nation.

– The district has 220 schools with 157,000

students, Pre K-12.

– The district also employs nearly 20,000

professionals.

Data items we looked at:

• Teacher turnover rate: Percentage of

teachers who left the district. Various

reasons can contribute to the reason of

departure, including demographics or

salary.

• Teacher-student ratio: This is the number

of students per teacher.

• High school graduation rates.

• We also looked at several neighboring

districts of Dallas ISD, namely Plano,

Garland and Richardson.

• We looked at the turnover rate, teacher-

student ratio and graduation rate of all four

districts.

Map of districts we researched:

Here is a general map of Dallas and the bigger cities around it to give an idea

of where Dallas is:

Steps taken to reach data source:

• TEA Website

• Clicked “Reports & Data”

• Clicked “Academic Excellence Indicator”

• Clicked the year “2011”

• Clicked “districts”

Ed Timms Datasheet

Information on upcoming graphs:• We looked at turnover rates versus graduation rates and found

a correlation.• The less of a teacher turnover rate, the more students

graduate.• In each graph, we’ve compared all the listings side by side by

district. • The Y axis is the percentage for each X category. Since

graduation rates skewed the data, we divided the actual graduation rate by 10 to fit the graph visually.– Dallas: 77.3/%10= 7.73– Garland: 87.7%/10= 8.77– Richardson: 91.1%/10= 9.1– Plano: 93.4%/10= 9.34– These numbers are displayed in each graph as the smallest number

listed above.

GRAPH 1

• Here is a graph of Dallas ISD and its teacher-student ratio, turnover rate and graduation rate:

GRAPH 2

• Here is a graph of Richardson ISD and its teacher-student ratio, turnover rate and graduation rate:

GRAPH 3

• Here is a graph of Garland ISD and its teacher-student ratio, turnover rate and graduation rate:

Graph 4

• Here is a graph of Plano ISD and its teacher-student ratio, turnover rate and graduation rate:

Trend we found:

• The lower the teacher/student ratio, the higher the graduation rate. For example, Plano ISD has the lowest teacher/student ratio (14.5) and the highest graduation rate. (93.4%)

• Richardson ISD has the second lowest teacher/student ratio (15.3) and the second highest graduation rate. (91.1%)

• Dallas ISD has second highest teacher/student ratio (15.3) and the lowest graduation rate. (77.3%)

• Garland ISD has the highest teacher/student ratio (15.9) and the second lowest graduation rate. (87.7%)