Any difference between the parties to, or persons bound by the agreement or on whose behalf it was entered into, concerning its content, meaning, application or violation, which is not settled to the satisfaction of the parties within ten (10) teaching days from the date when the Association takes the matter up with the Board or the Board notifies the Association in writing of its desire to have the difference negotiated, shall, upon written request of either party be submitted to an Arbitration Board, consisting of three members.