If a teacher gives an instruction or explanation, and it is ambiguous, the meaning is by definition uncertain. The degree of uncertainty may be further increased if it is in a language other than the mother tongue. This uncertainty will have negative effects in strong UA groups so much as tasks may not be performed at all or will only be started after long consultation with others to reduce the uncertainty. Instructions need to be clear in order to reduce uncertainty. This tolerance will also affect the success someone has when encountering a foreign culture or language. Brown suggests:
The person who is tolerant of ambiguity is free to entertain a number of innovative and creative possibilities and not be cognitively or affectively disturbed by ambiguity and uncertainty.