Correlation? What correlation?

Dublin teacher, Kevin Griffin, brings to our attention this graph, which he describes thusly

The chart plots the Value-Added scores of teachers who teach the same subject to two different grade levels in the same school year. (ex. Ms. Smith teaches 7th Math and 8th Math, and Mr. Richards 4th Grade Reading and 5th Grade Reading.) The X-axis represents the teachers VA score for one grade level and the Y-axis represents the VA score from the other grade level taught.

If the theory behind evaluating teachers based on value-added is valid then a “great” 7th grade math teacher should also be a “great” 8th grade math teacher (upper right corner) and a “bad” 7th grade math teacher should also be a “bad” 8th grade math teacher (lower left corner). There should, in theory, be a straight line (or at least close) showing a direct correlation between 7th grade VA scores and 8th grade VA scores since those students, despite being a grade apart, have the same teacher.

Here's the graph

Looks morel ike a random number generator to us. Would you like your career to hinge on a random number generator?

Dublin SB5 Referendum Petition Signing

Invite you to sign the SB5 Referendum Petition WEDNESDAY MAY 11 5:30-6:45 p.m. at COFFMAN PARK on Coffman Park Drive (the corner of Coffman Rd and Emerald Pkwy) Please also consider attending the Dublin Schools Town Hall Meeting at Coffman High School regarding the State Budget at 7:00 p.m.

Rallys around the State on Tuesday

This week marks a critical turning point in the fight to protect not only our collective bargaining rights, but public education itself. On Tuesday, Governor Kasich will unveil details of his first two-year budget. Given a looming $8 billion deficit, cuts to K-12 public education and higher education are expected to be steep and painful. Furthermore, the governor has said that it include many "reforms," not the least of which will involve diverting taxpayer dollars to unproven charter schools and voucher programs that support private schools.

Against this backdrop, it is critically important that we have a huge turnout of members at Tuesday's "Stand Up for Ohio" rallies. Twelve such rallies will be held across the state, and the only one in Central will be held at Westerville Central High School (7118 Mount Royal Ave., Westerville) from 5:00 to 7:00 p.m. (This marks a change in location from what had originally been planned for the Westerville Public Library.)

Please spread the word and encourage all of your fellow members, along with their families, friends, and supporters to be there with you. This rally will take place just blocks from Governor Kasich's home and will be a great message to send a loud and clear message, right in his backyard, that policies are wrong for the middle class, wrong for children, and wrong for the future of our state.

For those of you who live a distance away from Columbus, there are similar rallies taking place in the Dayton area (at the corner of Maple St. and E. National Rd. in Vandalia), in Portsmouth (at Shawnee State University), and in Mansfield (in the Main St. Town Square), all beginning at 5:00.

There is also a rally scheduled for next Saturday, March 19, on the square in downtown Newark at noon. (Arrive at 11:00.)

Also, please continue to contact your representatives by email and telephone.

Call 1-888-907-7309 or the Direct line listed below to let your representative in the House hear from you on why SB 5 needs to be stopped.