The "Bilingual Cooperative Integrated Reading and Composition" ("BCIRC") program, an adaptation of the "Cooperative Integrated Reading and Composition" ("CIRC") program, was designed to help Spanish-speaking students succeed in reading Spanish and then making a successful transition to English reading. In the adaptation, students complete tasks that focus on reading, writing, and language activities in Spanish and English, while working in small cooperative learning groups. The intervention focuses on students in grades 2-5. One study reviewed by What Works Clearinghouse (WWC) investigated the effects of "BCIRC" on the reading achievement and English language development of English language learners. The study (Calderon, Hertz-Lazarowitz, & Slavin, 1998) was a quasi-experimental design that met WWC evidence standards with reservations. All students in the experimental schools (n = 3) and comparison schools (n = 4) were enrolled in bilingual programs and transitioning into English language instruction. Students in the comparison group participated in round-robin oral reading exercises and used workbooks for practice activities. A total of 222 Spanish-speaking English language learners in two cohorts participated in the project. However, only third graders were tested in English, so they are the only students included in this intervention report. At the time of posttesting, there were 85 third-grade students (n = 52 for "BCIRC" and n = 33 for control). The "Bilingual Cooperative Integrated Reading and Composition" program was found to have potentially positive effects on reading achievement and English language development. (Contains 8 footnotes.) [This publication was produced by the What Works Clearinghouse. The following study is reviewed in this intervention report: Calderon, M., Hertz-Lazarowitz, R., and Slavin, R. (1998). Effects of Bilingual Cooperative Integrated Reading and Composition on students making the transition from Spanish to English reading. "Elementary School Journal," 99(2), 153-165.]