Slow Flight
Entry
As you reduce power, you should anticipate pitch down and yaw to the right Don’t watch tachometer needle to move from cruise to 1500RPM. Look at the horizon and cowling as you use peripheral vision. Adjust control pressure to avoid nose from dropping and adjust rudder to keep the heading constant.
70kt-Flap 20
60kt-Flap 30
The extension of flap cause nose to move up. If you allow it, you will gain altitude and airspeed decreases too quick. Anticipate this and you need to add slight forward pressure on the control wheel to avoid this. Watch horizon and cowling. Don’t fix your eyes on the airspeed indicator and the flap switch. After you set full flap, you need to apply back pressure to keep the altitude constant.
Add right rudder as you add power to compensate the left turning tendency. PTS require you to maintain minimum controllable airspeed which is almost 35kt for C152.
However, you need to be able to fly at any speed. Use trim. After this point, generally, pitch controls airspeed and power controls altitude. Remember the pitch attitude which gives you 35 kt.
Climb
Apply full power. Adjust pitch to maintain the airspeed. Add right rudder to maintain the heading. For level off, reduce power necessary to maintain the altitude. Adjust pitch to maintain the airspeed.
Descent
Reduce power as necessary. Adjust pitch to maintain the airspeed. Reduce right rudder to maintain the heading. For level off, add power necessary to maintain the altitude. Adjust pitch to maintain the airspeed. Add right rudder to compensate the left turning tendency.
Turn
Use 10 degrees bank. For the right turn, you need to use more right rudder because of the left turning tendency. On the other hand, the left turn dose not require much left rudder. Just reduce right rudder a little bit.
Recovery
Add right rudder to compensate the left turning tendency. Adjust pitch "gradually" to maintain the altitude. Don’t push nose down quickly. Pitch should be changed slowly from slow flight attitude(high) to cruise attitude(level). Look at the horizon and cowling as you scan the altimeter.
The flap retraction cause the nose to move down. You need to anticipate and add back pressure as necessary to maintain the altitude. As airspeed increases, you don’t need much right rudder anymore. Reduce right rudder as needed.
Return to cruise flight. Use trim.