I find it ok to have the child sit on parent’s lap, let baby climb onto the table occasionally, stand / sit on the floor or wander around a bit during lesson if he likes. As long as he isn’t distracting others much. If the child’s cranky, then it’s good for parent to bring him out to calm down before rejoining class. Most of Vee and Jae’s classmates have settled down well in class after 1 term, probably because the activities are very fun.