| 434 / | HD | EDUCATION AND DEMONSTRATION |
| 322 | DF | QUESTION OR PROBLEM ELICITING RESPONSE {8} |
| 327 | DF | .~ Correctness of response indicated to examine by self-operating or examinee actuated means {12} |
| 334 | ![]() | .~.~ Hand-held element insertable to different depths in apertures respectively representing right and wrong answers |