Project H-200 is a series of English-as-a-second-language (ESL) lessons for the primary grades. To supplement direct language instruction by the Project H-200 classroom teacher, two mechanical aids have been devised. These units are designed to reinforce the language patterns that the children learn in the daily lesson. One type projects a filmstrip which is advanced automatically and inaudibly by the accompanying recording. Stories interesting to small children have been adapted for this machine. Songs and language drills accompany each story. Each story has a Spanish and an English version. The other unit, which plays back a six-second recording on individual, illustrated cards, permits endless repetitions of each recorded utterance but does not guarantee a fixed sequence of illustrations and sounds. Additional activities, songs, and games have also been created. Testing has been modified into a telephone-circuit arrangement with the examiner and tape recorder, the subject, and a third party. This system permits the examiner to ask the subject questions that are perfectly normal and avoids unnatural statements such as "Ask me what my name is." (VM)