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Identifying struggling students wasn鈥檛 an issue for teachers at Lynnville-Sully Elementary School, tucked away in this town of 900, an hour鈥檚 drive east of Des Moines. Knowing what to do next was the hard part.

Even in an elementary school with just 188 pupils, it was hard for teachers to offer intensive instruction to children who needed extra help while juggling the needs of the rest of their students. The school鈥檚 reading-support staff created lesson plans that didn鈥檛 always relate to regular classroom work. And teachers felt they had to wait too long to get extra resources to help the students who needed it.

鈥淵ou know what they need, and yet you had to prove it,鈥� said Cindy Gibbs, a 2nd grade teacher. 鈥淪ometimes you鈥檇 miss half a year before you鈥檇 get them in the resource room鈥� for extra help.

Acting on such concerns, the principal and teachers revamped the school鈥檚 instructional program in the fall of 2006, introducing a framework best known as 鈥渞esponse to intervention,鈥� or RTI. Called 鈥渋nstructional decisionmaking鈥� here in Iowa, RTI relies on frequent, short tests of students and on regular adjustments of instruction, based on what those tests show of a student鈥檚 progress, or 鈥渞esponse,鈥� to lessons.

Iowa鈥檚 school district officials are among the most enthusiastic promoters of the method, which is garnering intense interest among educators around the country.

鈥淩TI is this big thing that really can transform how we approach teaching all kids,鈥� said W. David Tilly III, the director of innovation and accountability for the Heartland Area Education Agency, which provides resources and professional development to 54 districts in the state, including Lynnville-Sully.

Part of the nationwide attention comes from the significant push the federal government has given RTI. States have used the response-to-intervention framework to implement the 6-year-old Reading First initiative authorized by the No Child Left Behind Act. In addition, the 2004 reauthorization of the Individuals with Disabilities Education Act allows states to use RTI as one tool to identify children with specific learning disabilities.

In practice, RTI can look quite different from school to school. But several key components are necessary for a successful program, researchers say. Students are generally screened early in the school year to determine if they may have educational difficulties, and to help their teachers figure out what extra lessons they may need.

Children with such difficulties are given increasingly intense instruction geared to bolstering the areas where they need help. The interventions must be scientifically based and given with fidelity, meaning that teachers must present the lessons as they were meant to be taught. Additional tests, or 鈥減rogress monitoring,鈥� continues for those students through the school year, to make sure the extra lessons are working.

Finally, if a student still hasn鈥檛 responded to several different interventions, he or she may need further evaluation, or special education services. The hope among some proponents of RTI is that by providing intensive instruction as soon as a problem is noted, children can be steered away from special education.

Iowa is just one of the places where response to intervention has taken root. The state shares resources among its many small school districts through its area education agencies. The , the largest of 10 in the state, has been cited often in research for its approach to RTI.

Though response to intervention鈥檚 inclusion in the federal special education law has made RTI seem like a special education initiative to some, Heartland sees it as a way to change the nature of instruction for all students. Potential benefits for students with learning disabilities are just part of the positive effects RTI can have on an entire school, they say.

Special education identification 鈥渋s just the toenail on the elephant,鈥� said Mr. Tilly, the Heartland official. 鈥淭hat鈥檚 not what it was created for, and that鈥檚 not what its best purpose is.鈥�

In Heartland area schools, the process of introducing a school to the RTI process may begin with informal conversations with interested schools. The agency also holds daylong sessions with teams of teachers and administrators, where they are asked to evaluate thoughtfully their own readiness to launch the process. Building consensus is a crucial part of a successful program, administrators say.

But even Heartland鈥檚 long experience with the practice hasn鈥檛 made every school鈥檚 implementation the same鈥攐r easy.

鈥淚 told teachers it was going to feel really overwhelming. We鈥檙e going to be juggling a lot of balls, and it鈥檚 going to feel like they鈥檙e falling,鈥� said Jolene Comer, the principal of both Lynnville-Sully Elementary School and a 120-student middle school housed in the same building. Heartland officials approached the principal because the school was already in the process of adopting a new reading curriculum. Ms. Comer said the instructional-decisionmaking process seemed to fit well with the other changes in the school.

Introducing RTI required restructuring the day so that grade-level teachers had common planning time, changing staff members鈥� duties so they could work closely with students who were having problems, and introducing intensive professional development.

鈥淭he whole staff really felt like this was important. Now it鈥檚 been a year and a half, [and] it feels like business as usual. I feel we鈥檝e accomplished a lot,鈥� Ms. Comer said.

The process has led to a new energy within the building, she added. Teachers are working together more than they ever have before. Labels for children aren鈥檛 as important as they once were, she said, which she sees as a benefit. 鈥淭hese are all our kids,鈥� Ms. Comer said.

In six days of training with Heartland staffers, the team from Lynnville-Sully was asked some probing questions. Among them: Is the core instruction given to all pupils the best that it can be? How will you know which students require interventions? What interventions will be used? How will you monitor effectiveness?

This is why RTI, despite having common elements, can look so different in practice from one school to the next. 鈥淭his is not a scripted program,鈥� Ms. Comer said. 鈥淵ou don鈥檛 take this and just fit it into your day.鈥�

At Lynnville-Sully Elementary, pupils are screened early in the school year, using Dynamic Indicators of Basic Early Literacy Skills, or DIBELS, tests. If those tests indicate that a child has a problem with reading fluency or decoding skills, the teacher administers other diagnostic tests to pinpoint the problem, and to guide the interventions that will be used.

Parents are notified when screening shows that their child may not be learning as fast as his or her classmates. The school has carved out time in the day to allow reading-support teachers to work with small groups of students for at least 30 minutes a day.

Students who need more help get more time, sometimes with the school鈥檚 special education teacher, who has a constantly changing group of children to work with. In addition to the students formally identified as requiring special education services, the teacher also works with children who do not have individualized education programs under the IDEA, but just need more help.

The principal, reading-support teachers, and classroom teachers meet once a month to discuss the data they are collecting on students. Three times a year, the school has 鈥渄ata days鈥� to take a deeper look at the overall curriculum and student performance based on other tests.

About 30 percent of the schools鈥檚 pupils are now receiving some type of intervention, a percentage the principal would like to see go down.

The process is too new at Lynnville-Sully for the school to have much hard data on its progress. Instructional decisionmaking had only been in place at the school for a handful of months when the students took the Iowa Tests of Basic Skills last spring. However, the school has seen improvement in its DIBELS fluency scores. Seventy-nine percent of 1st graders met the standards by the end of the 2005-06 school year, a year before the RTI process started. By the end of the 2006-07 school year, the benchmark rate was 83 percent.

At the 2nd grade level, 48 percent of students met the DIBELS benchmarks in 2005-06. In 2006-07, the passing rate was 81 percent.

Lynnville-Sully still has work to do, the principal and teachers acknowledge. The instructional-decisionmaking structure needs a better place for children who are gifted, teachers say.

And implementation at the middle school, which started this past fall, a year after the elementary school began its work, has been slower. Part of the problem is the particular challenges offered by older students and the structure of the middle school day.

The middle school teachers, unlike the elementary school teachers, weren鈥檛 necessarily as eager to embrace change, said Shannon Harken, the Heartland AEA educational consultant who works with Lynnville-Sully on its RTI implementation.

Ms. Comer 鈥渉as had to take two totally different approaches with the two faculties. The middle school teachers liked what they were doing before,鈥� Ms. Harken said.

But within the middle school, teachers are noting positive effects.

鈥淭here鈥檚 a lot more people involved in the conversation [about students], and that鈥檚 huge,鈥� said Melissa Doll, who works with middle school students deemed at risk of failing academically. 鈥淗ow much more powerful for the student when we鈥檙e all sharing data, and sharing what we see.鈥�

The elementary teachers said they see that same power in sharing information.

鈥淲e鈥檙e catching more 鈥榦n the edge鈥� kids,鈥� said Lisa Foster, a 5th grade teacher, referring to students who could be having academic problems but can fade from attention in a classroom of students with more pressing needs.

鈥淏efore, we didn鈥檛 know how to use all our resources. But because our [instructional-decisionmaking] stuff is so data-driven, we don鈥檛 let them fall behind,鈥� she said.