We would highly recommend Ms. Marynell Heier and the De Pere Kumon center. Our son has been attending math classes at the Kumon center for the last 1 year and Ms. Heier's teaching style and the Kumon program have helped him tremendously, both with building confidence as well as improving his ability to quickly solve math problems at school. Ms. Heier is very particular, organized and methodical. She will show the kid how to solve a problem initially but then encourages and requires the child to think and solve problems on their own. This has helped him in that he does not get easily frustrated and stays focused on getting to the solution. We are glad that he is part of this program.