He has previously taught in private English-instruction schools in the Philippines and in Bangkok, Thailand. He then taught in Vermont, USA for eight years at a public middle and high school. He has previously taught Math 7, Math 8, Introductory Algebra, Algebra 1, Algebra 2, and Euclidean Geometry. After school and during the summer break, he led robotics and 3D printing design programs. He is currently working as an online academic coach for the University of Texas in Contemporary Mathematics and College Algebra.
Rence likes fishing (and ice fishing), playing badminton and volleyball, and practicing the ukulele. He also likes to go hiking with his wife and daughter. He loves traveling and learning about new cultures. Last year, he took his US students to Thailand on a 12-day field trip.