In this study, the investigators want to find out if a 12-week exercise program improves balance in people with knee osteoarthritis. This study will involve two visits to the School of Kinesiology at the University of the Fraser Valley (Chilliwack campus). Each visit will last approximately one hour. Participants will be asked to fill out questionnaires and complete a balance test. In between visits, participants will complete 12 weeks of an exercise program specifically designed for adults with osteoarthritis. Participants will do the exercise classes twice per week. Classes can be done in person or at home Each exercise class is 45-minutes long and consists of flexibility, strength, and coordination exercises. In each class there are options to either increase or decrease the intensity of each exercise to cater to varying fitness levels and fluctuating symptoms. Each exercise has an assisted (using a chair for balance), body weight, and resisted (weight or exercise tubing) option. Participants will fill out an exercise diary each week to let the investigators know what days they did the exercise classes, and whether they experienced any changes in their knee osteoarthritis symptoms.