A South Brunswick woman faces three felony crimes that accuse her of assaulting children when she taught at a childcare school in Robbinsville last month. Ekta Dwarkesh, 45, allegedly slapped two children in the face, causing one to suffer a nosebleed, and grabbed the arm of a third, causing a visible injury, the charges against her say. She taught at The Malvern School on Route 33 at the time. She’s charged with three counts of endangering the welfare of a child by abuse or neglect, documents show. A Robbinsville police detective wrote in April 5 charging documents that surveillance video fro…