Primary Schools in Mexico City

We are planning a move from the US to Mexico City for my husband's job. He will move next month and we will join him in the summer. We are looking in the Polanco, Condessa area to live. We have two children, 5 years and 7 years. Does anyone have recommendations af schools in the area. We will start applying now for September enrollment. We hear the traffic is tough so we would like schools close to good neighborhoods. We would like a bilingual school. Thank you for any assistance. claudia