Conservative Judaism – taking a teaching Job in their school

Igros Moshe (YD I #139) This that you took a job as a principal at a school for young children under the auspices of heretics and you were told  by one of my principals that it was inappropriate. The fact is that even if the job was kosher such as teaching them G-d’s Torah and praying with them properly. In another location it would be proper to have such a job since it is necessary to teach Torah to their children so that perhaps they will grow up to keeping Torah and mitzvos as proper Jews. However it is still inappropriate to accept this position which involves also being a teacher there because it is possible that the students there will come to view their school as a legitimate place to learn since they have such a nice religious teacher and this can lead to serious damage. However this that you write that they pray an inappropriately abbreviated pray and they don’t say all the Berachos in the Amida and consequently instead of educating them properly in prayer and mitzvos you are teaching them that which is prohibited. That is because all the Berachos of the Amida are required. It is surely a problem if the beracha they say has been altered from the original text it would certainly be prohibited to take this job. Even if it is possible that you might be able to influence some of the students to be better. But the possibility similarly exists that it is more likely that the opposite is true that this will cause some to not be properly religious. That is because heresy is attractive and thus must be avoided. 

Igros Moshe (YD II  #107) To take a job as teacher and principal in a religious school of the Conservatives in something which is displeasing to Sages. However you cannot say it is prohibited if he is allowed to teach G-d’s Torah and to pray properly and that the school is located away from their synagogue. Consequently don’t object  against those who need a livelihood and want to take such a job. .It is also a positive thing since the children of the Conservative Jews need to learn G-d’s Torah and perhaps this will aide them to acquire Torah as proper Jews. However because of this possibility it doesn’t make taking the job something pleasing to the Sages. That is because it is uncertain whether he will have a positive influence on them and  this means he will be closely associating with heretics. Our Sages have stated that we should distance ourselves from heresy and to be greatly concerned with their danger even if it is only a small problem. Therefore this can only be tolerated if needed for a livelihood. So in this case where the job is sought not because of livelihood but for idealistic reasons you were correct to object and his time better spent with helping children who are properly observant and already attend a proper shul. While it is important to attract those children of the irreligious but not to take an official position with them. 

Igros Moshe (Y. D. V #38) Question Teaching Torah to the daughter of a Conservative Rabbi and other children of Conservative Jews in a class. You feel It is necessary to explain to them the great damage done by Conservative rabbis even though this will cause them embarrassment  by saying their fathers are evil people and cause them to cry and possibly leave the school. But you feel if you don’t tell them they will think that the Conservative approach is a valid Jewish one. So your question is how to deal properly with this. Answer I think you need to deal with this intelligently and explain that there is one Torah that was given to all Jews at Sinai through Moshe in written form while the details were transmitted orally and that this is attested to in the Talmud and commentaries. Furthermore you need to convey the idea that the Conservative and Reform religious faith is false and is heresy, however not to use words like evil or wicked. She already is aware that the Orthodox claim that the faith of the Reform and Conservative is heresy but she will surely object to the terms evil or heretic and thus saying such is not beneficial or productive  Furthermore these terms have acquired a new meaning. They used to simply indicate a person who has transgressed a mitzva but now they are understood to mean a bad or cruel person. Therefore it is not appropriate to call her father or other Conservative or Reform by these terms In fact you should first explain what a rasha connotes in the Torah. Nonetheless you need to explain that the faith of the Reform and Conservative is not  true  without using the terms such as rasha.