ASI failure
Remember the approximate attitudes for power/ flap configuration and you will not be too far out from normal parameters.
A tip for the Cessna 150/152/172 aircraft, when on the approach to land ensure that the ventilator tube into the cockpit from the wing is opened. You can hear the change in sound as the centre of pressure moves forward as the angle of attack increases. It used to be a good way to demonstrate a precautionary approach with a covered or failed Air Speed Indicator.