The Adelaide Magistrates Court has heard four young children who were allegedly assaulted by a childcare worker will not be required to testify at her trial.

Kelly Nadene Schulz, 31, is accused of assaulting four boys at a childcare centre at Magill, in Adelaide's eastern suburbs, between January and October 2012. 

She has been charged with 10 counts of assault which are aggravated offences because of the victims young ages and because Schulz allegedly breached a position of authority. 

The court heard 14 prosecution witnesses will be called during the trial including some of Schulz's co-workers, the children's parents and police.

But the prosecutor told the court it is not likely the children will be called to give evidence.

It is alleged some of Schulz's co-workers saw her hit the children on the top of their heads with a clipboard on numerous occasions.

It is also alleged Schulz would remove her shoe and hit children on the lower back or bottom while she was putting them to sleep in a toddler room, and would tell them to "get into bed" or "stop wriggling".

Schulz allegedly told one of the children, who had his arm in a sling, to sit down or she would break his other arm.

The children also allegedly told some of their parents about the incidents, and one allegedly said the accused had smacked him the face and neck and pulled his ears.

Schulz is on bail to reside at Ferrydon Park on condition she does not approach or communicate with any of the alleged victims or witnesses in the case.

The court has set aside four days for a trial in December.

Schulz had been working at the childcare organisation since 2003 and was suspended from her employment in October last year.