The students played with the infected animal before Texas school administrators were notified and quickly removed the creature last week.
Parents spotted video footage of a man allegedly abusing their child at the Michigan preschool and raised the alarm.
The court heard how the 37-year-old teacher added sodium nitrite to the breakfast of children in the class of a colleague, with whom she had fallen out.
"(Kossuth Elementary School) Kindergarten Parents and Students, I apologize for the short notice. This is not something we want to do, but we believe this is the right thing to do," Principal Charla Essary wrote in a text message.
Nearly 40 other students in Oklahoma were also quarantined last week after a middle school volleyball player tested positive.
A research scientist in Hawaii says she found a message in a bottle written by a 1998 kindergarten class in Washington State. It's only one of several recently reported "message in a bottle" discoveries.
A Tennessee family's claim that their autistic 5-year-old son was labelled a sex offender after hugging a fellow student has been denied by school officials.
"The assertions that kindergarten students at our Early Childhood Education Center are in cages in the hot sun for 30 to 40 minutes at dismissal are categorically false," district superintendent Gerry Washburn hit back.
Frank Ortega Robledo was arrested on Monday around 6:45 p.m. and charged with continuous sexual assault of a child.
"We apologize for not putting more consideration into the planning of the dance performance," the kindergarten's principal said.
1 in 4 girls and 1 in 6 boys experience some form of sexual abuse before they're 18 years old.
The teacher then held up the organs and innards for all the children to see.
On Tuesday, Jewish children in the Polish city will enter a Jewish classroom for the first time since 1968.