RED LAKE — After opening in 2022, the Endazhi-Nitaawiging Charter School in Red Lake realized it had a problem — what was it going to do without a playground? The charter school, which emphasizes Ojibwe language and culture in its curriculum, knew it needed a playground for its students, who are in kindergarten through sixth grade. Questions of what it was going to look like and the cost were up in the air. That’s when the school heard about the…