Do you need a visa to travel to Canada with an American F-/KLOC-0 visa?

Landlord, I hope you read what I said carefully, don't expect to get the best answer, but you must read it carefully.

You are an F 1 visa and leave the United States within one year. Every time you leave the country, you must sign the name of the school consultant at the bottom of the third page of the I20 form, otherwise it may be illegal to leave the country and you are not allowed to return to the United States! Be sure to remember this. Not all consultants have the right to sign, they are registered consultants, so we must make it clear.