The opinion of the Court was delivered by
O’HERN, J.Defendant contends that her conviction, of official misconduct as a teacher should be reversed because the trial court’s instructions did not ensure a unanimous jury verdict. She argues that because the indictment charged multiple instances of misconduct and the jury did not convict her of each of the specifically-charged acts of sexual assault and endangerment, the jurors may have reached a compromise verdict on the official-misconduct count, with some believing that she had committed certain of the acts charged and some believing that she had committed others of the acts charged, but none unanimously agreeing on the specific acts committed. Defendant also questions whether the actions attributed to her qualify as official misconduct.
*631We disagree with her contentions and affirm the conviction. We believe that the jury instructions adequately conveyed to the jury the requirement that it must unanimously agree beyond a reasonable doubt that defendant had engaged in specific conduct that violated the official-misconduct statute. We also believe that her actions could constitute official misconduct.
I
For the specifics of this case, we draw on the facts stated in defendant’s brief to the Appellate Division.
On February 19, 1986, two school administrators entered and searched defendant's classroom at the Robert Fulton School in North Bergen. Defendant taught a class of perceptually-impaired children ranging in age from ten to twelve years. The administrators decided to search defendant’s classroom in response to a parental complaint they had received about her. In the course of their search, the administrators discovered in defendant’s closet a bottle of rum and an envelope containing sexually-explicit magazines. After the search and discovery, the administrators suspended defendant from teaching and conducted interviews with the students in her class.
Either in those interviews, before the grand jury, or at trial, various students testified that defendant had touched them or others in their “private parts.” In addition, several of the young witnesses testified that defendant had shown them the sexually-explicit magazines that had been found in the classroom. They said that defendant would have them “draw on or cut out the private parts of people in the magazine, and sometimes make cutouts herself, to be pasted in a book.” One student stated that defendant had brought the bottle of rum into the classroom and that students had tasted it while defendant was out. Various students testified that defendant had told them about her “wacky” friend who was a “lesbian”; another said that she had told them that she wanted to “sleep with” a school administrator. One student testified that defen*632dant had said that she wanted to marry and “do bad things” with the school administrator; another stated that defendant had said that she was “going out” with the administrator and wanted to marry two other male teachers; and yet another student could remember defendant saying only that she “liked” the administrator but added that defendant had told the class that “the gym teacher was a lesbian” and that “the art teacher was taking drugs.” Others described bizarre disciplinary methods that included “being put in a box” and writing words and phrases one hundred times.
A grand jury indicted defendant, charging her with eleven counts of criminal conduct. It charged her with four counts of sexual assault through committing acts of sexual contact on individual students, one count of attempted sexual assault on another student, five counts of endangering the welfare of children, and one count of official misconduct, contrary to the provisions of N.J.S.A. 2C:30-2a, in that she had engaged “in a continuing course of conduct which sexually abused, humiliated and otherwise endangered the welfare of children while [she] had a legal duty to care for the children and had assumed responsibility for their care.”
At trial, some students admitted that they had fabricated parts of the stories. One admitted that he had brought the bottle of rum into the classroom. Others testified that a student had brought in the magazines; others said that defendant had found the magazines on the floor. Some admitted testifying falsely before the grand jury about having witnessed sexual contact or otherwise having told the grand jury untrue stories. All in all, when the witnesses were subjected to cross-examination in the courtroom, they wavered in many specifics.
The jury convicted defendant of official misconduct but acquitted her of three counts of sexual assault. On the remaining counts, the jury was unable to reach a verdict.
The Appellate Division affirmed the conviction, but one member of the panel dissented, finding that the trial court’s failure *633to give the jury specific instructions that they all had to agree on the particular act that constituted official misconduct violated defendant’s right to a unanimous jury verdict. Defendant appealed to us as of right. R. 2:2-1(a). We also granted defendant’s petition for certification on the issue of whether the acts of wrongdoing alleged by the State in defendant’s indictment constituted official misconduct under N.J.S.A. 2C:30-2a. 122 N.J. 381, 585 A.2d 385 (1990).
II
Like the “reasonable doubt” standard that was found to be an indispensable element at all criminal trials in In re Winship, 397 U.S. 358, 364, 90 S.Ct. 1068, 1072, 25 L.Ed.2d 368, 375 (1970), “the unanimous jury requirement ‘impresses on the trier of fact the necessity of reaching a subjective state of certitude on the facts in issue.’ ” United States v. Gipson, 553 F.2d 453, 457 (5th Cir.1977) (quoting In re Winship, supra, 397 U.S. at 364, 90 S.Ct. at 1072, 25 L.Ed.2d at 375). Our Constitution presupposes a requirement of a unanimous jury verdict in criminal cases. N.J. Const. art. I, para. 9. Our Rules require that the “verdict shall be unanimous in all criminal actions.” R. 1:8-9. Although the requirement of unanimity is self-evident, the meaning of the expression “facts in issue” is not as clear. See Schad v. Arizona, — U.S.-,-, 111 S.Ct. 2491, 2497, 115 L.Ed.2d 555, 565 (1991) (“Plainly there is no general requirement that the jury reach agreement on the preliminary factual issues which underlie the verdict.” (quoting McKoy v. North Carolina, 494 U.S. 433, 449, 110 S.Ct. 1227, 1237, 108 L.Ed.2d 369, 385 (1990) (Blackmun, J., concurring))). For example, the court in United States v. Peterson, 768 F.2d 64 (2d Cir.), cert. denied, 474 U.S. 923, 106 S.Ct. 257, 88 L.Ed.2d 264 (1985), found that a jury does not have to agree unanimously on whether an actor’s criminal role is that of a principal or an accomplice. See also United States v. Horton, 921 F.2d 540, 546 (4th Cir.1990) (“The jury found Horton guilty of one crime — first degree murder. The fact that the jurors may have *634taken different routes [viewing Horton as accomplice or as principal] to this conclusion provides no grounds to reverse.”), cert. denied, — U.S. -, 111 S.Ct. 2860, 115 L.Ed.2d 1027 (1991). State jurisdictions have reached the same conclusion: in a case involving possible accessory liability, the jury should be regarded as unanimous even if some jurors believe that the defendant was an aider or an abettor, while other jurors believe that the defendant was a principal. See, e.g., State v. Smith, 212 Conn. 593, 563 A.2d 671 (1989). In those cases each juror has found the defendant guilty of the substantive crime whether it be as a principal or as an accessory. Although all jurors may not find the same facts, the facts that they find are not “conceptually distinct.” See State v. Johnson, 46 Ohio St.3d 96, 105, 545 N.E.2d 636, 645 (1989) (where “the alternatives presented to the jury and charged in the specifications were not conceptually distinct * * * a ‘patchwork’ or less than unanimous verdict was not possible”), cert. denied, — U.S. -, 110 S.Ct. 1504, 108 L.Ed.2d 639 (1990).
Another example of non-unanimity on facts arises in cases involving continuing courses of criminal conduct. In the case of sexual misconduct, young children are often unable to testify with respect to any specific date on which sexual contact had occurred. Rather, they will describe such events as having occurred over a period of time. Yet, as the court held in State v. Altgilbers, 109 N.M. 453, 786 P.2d 680 (Ct.App.1989), if the evidence could convince a reasonable person beyond a reasonable doubt that the defendant committed the charged offense during the span of time, “[n]o juror need have a precise day in his or her own mind in order to vote for conviction.” Id. at 471, 786 P.2d at 698; see also Note, Bight to Jury Unanimity on Material Fact Issues: United States v. Gipson, 91 Harv.L.Rev. 499, 502 (1977) (“only common sense and intuition can define the specificity with which the jury must describe the defendant’s conduct before it may convict”).
Some jurisdictions are of the view that unanimity is not required when a statute states a single offense but provides for *635various modes of commission of the offense. For example, Maryland’s consolidated theft statute, which groups the various aspects of stealing goods and of receiving stolen goods into a single offense, does not require jury unanimity on which specific aspect of the offense occurred. Rice v. State, 311 Md. 116, 532 A.2d 1357 (1987); see also United States v. MMR Corp. (LA), 907 F.2d 489 (5th Cir.1990) (because indictment charged defendants with joining conspiracy involving only one bid-rigging agreement, government did not have to prove precise obligations of each conspirator under the agreement, e.g., high bid or no bid, but only that defendants did agree to join in the conspiracy; thus, general unanimity instruction was sufficient), cert. denied, — U.S. -, 111 S.Ct. 1388, 113 L.Ed.2d 445 (1991); United States v. UCO Oil Co., 546 F.2d 833 (9th Cir.1976) (jury unanimity on specifics not required in conviction for making false statements and concealing material fact by trick, scheme, or device in relation to gasoline service-station business), cert. denied, 430 U.S. 966, 97 S.Ct. 1646, 52 L.Ed.2d 357 (1977). See generally Annotation, Requirement of Jury Unanimity as to Mode of Committing Crime under Statute Setting Forth the Various Modes by which Offense May Be Committed, 75 A.L.R.4th 91 (1990).
In some circumstances, however, a general charge on jury unanimity will not suffice. That is so when, for example, “a single crime can be proven by different theories based on different acts and at least two of these theories rely on different evidence, and [when] the circumstances demonstrate a reasonable possibility that a juror will find one theory proven and the other not proven but that all of the jurors will not agree on the same theory.” People v. Melendez, 224 Cal. App.3d 1420, 1433-34, 274 Cal.Rptr. 599, 608 (1990). The leading case for that proposition is United States v. Gipson, supra, 553 F.2d 453. There, the government presented a case of improper disposal of automobiles based on what the appeals court viewed as “two distinct conceptual groupings,” the housing and the marketing of stolen vehicles. Id. at 458. Reason*636ing that some jurors might have concluded that Gipson had committed acts in the first grouping while others concluded that he had committed acts in the second grouping, the court held that the possibility of “significant disagreement among the jurors as to what he did” barred his conviction. Id. at 458-59; see also United States v. Payseno, 782 F.2d 832, 836 (9th Cir.1986) (“ ‘[When] there is a genuine possibility of jury confusion or that a conviction may occur as the result of different jurors concluding that the defendant committed different acts, the general unanimity instruction does not suffice.’ ” (quoting United States v. Echeverry, 719 F.2d 974, 975 (9th Cir.1983))). Obviously, use of the expression “distinct conceptual groupings” is more of a conclusion than a predicate to decision. Schad v. Arizona, supra, — U.S. at-, 111 S. Ct. at 2498, 115 L.Ed.2d at 567. In Gipson, as in many such cases, there was a tangible indication of jury confusion: the jury requested additional instructions on the issue, but the trial court instructed the jury that it need not be unanimous on the basis for guilt. Thus, the circumstances in which a general charge on jury unanimity will not suffice may include
where the facts are exceptionally complex, see Payseno, 782 F.2d at 836- 37, or where the allegations in a single count are either contradictory or only marginally related to one another, id,., or where there is a variance between the indictment and the proof at trial, United States v. Echeverry, 698 F.2d 375, 377, modified, 719 F.2d 974 (9th Cir.1983), United States v. Mastelotto, 717 F.2d 1238, 1250 (9th Cir.1983), or where there is a tangible indication of jury confusion. Echeverry, 698 F.2d at 376-77. In these instances, the trial court must give an augmented unanimity instruction. [United States v. Ryan, 828 F.2d 1010, 1020 (3d Cir.1987).]
The celebrated case of Oliver North highlights this issue. United States v. North, 910 F.2d 843 (D.C.Cir.) (North I), vacated in part and rev’d in part on rehearing, 920 F.2d 940 (D.C.Cir.1990) (North II), cert. denied, — U.S.-, 111 S.Ct. 2235, 114 L.Ed.2d 477 (1991), and cert. denied, — U.S.-, 111 S.Ct. 2235, 114 L.Ed.2d 477 (1991). North had requested specific unanimity instructions from the trial court and had objected to the trial court’s refusal to give such instructions. On appeal, North claimed that the circumstances of the case *637indicated a high possibility of a “patchwork verdict” in that the case against him embraced in one count a broad-based charge of destroying, altering, or removing official documents from mid- to late November 1986. Because each of the charged document groupings was conceptually distinct (e.ga ledger of the Contra operating fund, documents concerning Iranian arms sales, documents removed but returned to his National Security Council office), and North’s culpable mental state concerning each was in issue (did he know that it was a crime to remove or alter or shred each of the documents?), the circuit court initially concluded that North’s request for a specific unanimity charge should have been granted and that the failure to give the charge constituted reversible error. Following the Independent Counsel’s petition for rehearing, the circuit court noted that the trial court had limited the jury’s consideration to “a single incident involving five specific documents.” North II, supra, 920 F. 2d at 951. In reviewing once again the jury instructions, the court found that the instructions “as a whole did not pose ‘a genuine risk that the jury [would be] confused’ ” and concluded that the omission of a specific unanimity instruction did not constitute reversible error. Ibid, (quoting United States v. Duncan, 850 F.2d 1104, 1114 (6th Cir.1988), cert. denied, — U.S. -, 110 S.sssssssssssssssssssssssssssssssssssssCt. 732, 107 L.Ed.2d 751 (1990)).
Concerning the need for a specific unanimity instruction, we agree with the proposition stated in North I that is generally applied in the federal system: “in cases where there is a danger of a fragmented verdict the trial court must upon request offer a specific unanimity instruction.” North I, supra, 910 F.2d at 875; accord United States v. Ryan, supra, 828 F.2d 1010; United States v. Mangieri, 694 F.2d 1270 (D.C.Cir.1982).
Ill
Although such a charge should be granted on request, in the absence of a specific request, the failure so to charge does not necessarily constitute reversible error.
*638Many federal courts have concluded that absent a specific request, “a general instruction on the requirement of unanimity suffices to instruct the jury they must be unanimous on whatever specifications they find to be the predicate of the guilty verdict.” United States v. Natelli, 527 F.2d 311, 325 (2d Cir.1975), cert. denied, 425 U.S. 934, 96 S.Ct. 1663, 48 L.Ed.2d 175 (1976); see also United States v. Bedonie, 913 F.2d 782, 792 (10th Cir.1990) (absent specific request, general instruction was sufficient); United States v. Beros, 833 F.2d 455, 462-63 (3d Cir.1987) (failure to give specific unanimity instruction on defendant’s request constituted abuse of discretion and required reversal); United States v. Ryan, supra, 828 F.2d at 1020 (“prudence counsels the trial court to give an augmented unanimity instruction if the defendant requests such a charge”). The circumstances of the case before us suggest a paraphrase of the holding in United States v. Mangieri, supra, 694 F.2d 1270:
[Our jurisdiction], along with others, has not heretofore adopted a rule requiring the particularized instruction. [Defendants’] trial counsel * * * failed to object to the instruction * * *. In the context of that entire charge and the whole trial, we must conclude that a conscientious juror would have understood that he [or she] must agree with the other jurors [as to the specifications they find to be the predicate of the guilty verdict]. [Id. at 1281.]
For in the last analysis, when we review the issue as a matter of plain error, the question is whether the instructions were clearly capable of producing an unjust result. See R. 2:10-2. This is not a case in which a court incorrectly stated general principles. The “jury instructions cannot be read as sanctioning a nonunanimous verdict.” State v. Jennings, 216 Conn. 647, 663, 583 A.2d 915, 924 (1990). The court correctly instructed the jury that it must be unanimous in its verdict. The core question is, in light of the allegations made and the statute charged, whether the instructions “as a whole [posed] ‘a genuine risk that the jury [would be] confused.’ ” North II, supra, 920 F.2d at 951 (quoting United States v. Duncan, supra, 850 F. 2d at 1114).
*639Returning to the factors cited in United States v. Ryan, supra, 828 F.2d at 1020, we must ask whether the allegations in the misconduct count were contradictory or only marginally related to each other and whether there was any tangible indication of jury confusion. The indictment for official misconduct channeled the jury’s inquiry, reciting that the teacher had engaged “in a continuing course of conduct which sexually abused, humiliated and otherwise endangered the welfare of children while [she] had a legal duty to care for the children and had assumed responsibility for their care.” The acts cited certainly formed a core of conceptually-similar acts relating to the students’ educational relationship with the teacher and her abuse of that relationship. We agree with the analysis in the Attorney General’s brief to this Court:
It is apparent that the acts in [the official-misconduct count] allegedly committed by defendant are not conceptually distinct. All refer to conduct which can endanger a child, either physically or mentally. Abuse includes using obscene language in the presence of a child or performing any act or deed in the presence of the child which could debauch the child’s morals. Humiliation includes making the victim feel degraded. Endangering the welfare of a child includes engaging in conduct that would render a child an abused or neglected child. The evidence in this case, which included defendant forcing the victims to look at pornographic magazines, as well as cutting out pictures from them and creating “collages,” which included defendant informing the victims of her sexual desires, which included defendant using foul language and telling the class that a child was menstruating, * * * clearly constituted abusive, humiliating conduct which “involved subjecting the victims to either active or passive participation in ... activity in a manner harmful to their physical or mental health.” State v. Spigarolo, 210 Conn. 359, 391, 556 A.2d 112, 129 (1989), cert. denied — U.S. -, 110 S.Ct. 322, 107 L.Ed.2d 312 (1989). Because the acts alleged were conceptually similar, there was no reason to give a specific unanimity charge.
Furthermore, the jury never exhibited any signs of confusion. Early in its deliberations, the jury asked to be recharged on the official-misconduct charge and on the endangerment charge and asked for copies of the statutes associated with both charges. In so doing, the jury did not indicate that it was confused concerning its responsibility to reach a unanimous verdict. In contrast, juries in other cases have asked questions that showed their confusion regarding the unanimity issue. See United *640States v. Duncan, supra, 850 F. 2d at 1114-15 (in case involving false statements on tax return, jury’s request for clarification concerning whether it had to agree on which statement defendant knew to be false manifested a tangible risk of jury confusion); United States v. Echeverry, supra, 719 F.2d at 975 (jury’s written questions concerning whether it could consider multiple conspiracies indicated its confusion). Rather than confused, this was a “conscientious” and sophisticated jury. Mangieri, supra, 694 F.2d at 1281. It carefully sifted through all of the evidence as shown by its unanimous acquittal of defendant on some counts, its report of non-unanimity on other counts, and its unanimous verdict of guilt on the official-misconduct count. Thus, we are confident that there was no juror confusion in this case, and find that the general unanimity instructions were sufficient.
IY
Defendant argues that because she was not convicted of the other criminal acts alleged in the indictment, she could not be found guilty of official misconduct. Defendant argues that the acts she performed (for example, exhibiting the sexually-explicit magazines) cannot provide a basis for official misconduct because those acts were not found to be criminal. We disagree.
N.J.S.A. 2C:30-2(a) provides:
A public servant is guilty of official misconduct when, with purpose to obtain a benefit for himself or another or to injure or to deprive another of a benefit: a. He commits an act relating to his office but constituting an unauthorized exercise of his official functions, knowing that such act is unauthorized or he is committing such act in an unauthorized manner[.]
Nothing in the statute suggests that the underlying act must be criminal in nature. Thus, charges of official misconduct may be sustained without proof of a criminal act. See State v. Stevens, 203 N.J.Super. 59, 66, 495 A.2d 910 (Law Div.1984) (“if the actions set forth in [the] indictment [alleging official misconduct] constitute a breach of [an official] duty, whether broadly or narrowly described, the indictment is sufficient”), *641aff'd, 222 N.J.Super. 602, 537 A.2d 774 (App.Div.1988), aff'd, 115 N.J. 289, 558 A.2d 833 (1989); State v. Gleitsmann, 62 N.J.Super. 15, 161 A.2d 747 (App.Div.) (police officer’s personal use of police car and municipal telephone constituted official misconduct), certif. denied, 33 N.J. 386, 164 A.2d 849 (1960). To be guilty of official misconduct, a defendant must have performed the underlying act in order to obtain some benefit or to injure another. The benefit need not be pecuniary in nature and the injury need not be physical. J. Cannel, N.J. Criminal Code Anno. 2C:27-1 comment 3 (1991); see also State v. Stevens, supra, 115 N.J. 289, 558 A.2d 833 (police officer who conducted strip searches of women to gratify his sexual interests acted with purpose to obtain benefit); State v. Scirrotto, 115 N.J. 38, 46, 556 A.2d 1195 (1989) (benefit need not be pecuniary to satisfy bribery statute).
The State introduced evidence at trial that defendant had exhibited sexually-explicit magazines to her students; that she had had the children make cut-outs from those magazines; and that she had discussed her sexual proclivities and those of others with her students. All of those acts were unauthorized and were performed in the course of the exercise of her official function as teacher, presumably, as the jury could have found, to satisfy her own interests. If believed by the jury, defendant’s course of conduct would undoubtedly constitute official misconduct.
V
Ordinarily, a general instruction on the requirement of unanimity suffices to instruct the jury that it must be unanimous on whatever specifications it finds to be the predicate of a guilty verdict. There may be circumstances in which it appears that a genuine possibility of jury confusion exists or that a conviction may occur as a result of different jurors concluding that a defendant committed conceptually distinct acts. We hold that when there is such a danger of a fragmented verdict, the *642court must instruct a jury, on request, that if a guilty verdict is returned, the jury must be unanimous on the underlying facts. Such a charge was not requested here. We are satisfied that in the circumstances of this case, there was no genuine possibility of jury confusion about its responsibility unanimously to find defendant guilty of official misconduct on the specifications charged.
The judgment of the Appellate Division is affirmed.