In his resignation letter to the Battle River School Division, Jim Andre apologized to those who voted for him, adding he didn't intend for this to happen.
Andre also said he "didn't want to tarnish the reputation of the board trustees any further."
The 50-year-old had previously apologized for the Twitter comments he sent and re-tweeted at the beginning of the year.
The board said it unanimously accepted Andre's resignation at a special board meeting held Tuesday.
It says it will give social media and digital citizenship training to its members and come up with ways to ensure trustees are accountable.
"The experience has provided a vivid demonstration of the value that our local residents, our province and our country places on treating all people with respect, dignity and equity, regardless of their ethnicity, religion, gender or orientation," said the news release from board chairman Kendall Severson.
"The values expressed by our communities are very much in keeping with the values
of Battle River School Division."
Andre previously said most of the tweets were jokes he retweeted to his friends before he won his seat on the Battle River School Board in the October 21st municipal election.
He has since shut down his Twitter account.
Some of the jokes denigrated black people and singer Miley Cyrus while others made reference to Auschwitz and gay sex.
He also tweeted offensive comments about watching black people on the Maury Povich show.
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