Transportation / Preventive medicine / Schools / Humans / Child / Bicycling / Walking / Female / Male / Elementary School / Ontario / Awareness / Parents / Adult / Public health systems and services research / Curriculum and Pedagogy / Cross Sectional Studies / Bicycling / Walking / Female / Male / Elementary School / Ontario / Awareness / Parents / Adult / Public health systems and services research / Curriculum and Pedagogy / Cross Sectional Studies