| ReturnTo Theme-Group-Choice | Onelevelup |
| 2C028 | Electrically operated instructional devices | |
| G09B1/00 -9/56;17/00-19/26 | ||
| G09B5/00-7/12 | AA | AA00 SUBJECTS |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
| . Languages | . . Japanese | . . Foreign languages | . . Reading | . . Writing | . . Conversation | . Mathematics | . Science or social studies | . Music | . Techniques or skills | |||
| AA11 | AA12 | |||||||||||
| . Memorisation or implication | . Others | |||||||||||
| BA | BA00 INPUT MEANS |
BA01 | BA02 | BA03 | BA04 | BA05 | ||||||
| . Pressing operations or the like | . . Keyboards | . Speech | . Detection means for light beams conductors magnetic bodies or the like | . Others | ||||||||
| BB | BB00 OUTPUT MEANS |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB07 | BB08 | BB09 | ||
| . Display devices | . . Display boards character cards or the like | . . Projection apparatus | . . Electric indicating elements | . . Cathode-ray tubes | . Sound-producing apparatus | . . Speech synthesis | . Printing apparatus | . Others | ||||
| BC | BC00 OUTPUT ITEMS |
BC01 | BC02 | BC03 | BC04 | BC05 | ||||||
| . Questions answers or the like | . Scores or evaluations | . Time | . Hints | . Others | ||||||||
| BD | BD00 CONTROL MEANS |
BD01 | BD02 | BD03 | BD04 | |||||||
| . Computers | . . Control of the whole system | . . Control of individual apparatus | . Others | |||||||||
| CA | CA00 MEDIUM OF TEACHING MATERIALS |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | CA10 | |
| . Printed articles or the like | . Optical films | . Mechanical recording medium | . . Sheets | . . Discs | . Magnetic recording medium | . . Cards or sheets | . . Tapes | . . . Speech recording | . . . Image recording | |||
| CA11 | CA12 | CA13 | ||||||||||
| . Videodiscs or the like | . Memories | . Others | ||||||||||
| CB | CB00 RECORDING OR REPRODUCING APPARATUS |
CB01 | CB02 | CB03 | CB04 | CB05 | CB06 | CB07 | CB08 | CB09 | CB10 | |
| . Mechanical recording or reproducing apparatus | . Magnetic recording or reproducing apparatus | . . Recording or reproducing functions | . . . Language learning (LL) functions | . . Automatic operation | . . . Auto-stop | . . . Cue recording or reproducing | . . . Auto-repeat | . . . Program reproducing | . . Data display | |||
| CB11 | CB12 | CB13 | ||||||||||
| . . Prevention of error erasing or malfunction | . . for group learning | . Others | ||||||||||
| DA | DA00 GROUP LEARNING |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA07 | ||||
| . Speech channel switching | . Calling | . Remote control | . Sending or selecting teaching materials | . Monitors | . Analysis of group reaction | . Others |