Seeking tutors for primary school boys

Looking for an undergrad or graduate math tutor for a boy in grade six. Preferably he/she could give 2-5 tutoring sessions per week in evenings, with each session lasting for about an hour and a half. Also seek a chemistry tutor for a boy in grade three. Preferably he/she could give 2-5 tutoring sessions per week in evenings. Salaries could be negotiated on the phone, and the house is located in Palo Alto. Please contact karenakunli@gmail.com if interested. Thank you!