Technically not.
The first part of the stroke to learn is "backstops". There, your legs are horizontal and you're leaning back so as to be able to draw a vertical line between the front of your shoulders and the back of your arse. Your forearms are flat and the handle is a few inches away from your stomach.
To move off from this, the hands slide smoothly forwards, and then you tilt FROM THE HIPS keeping the back straight.
Only once your back has moved do you start to bend your knees. Keep your body still with the arms forwards and the chest vertical. Start to rotate your pelvis when your knees have just started to bend.
As you get to the front of the slide, you should be reaching a reasonable way forwards with your arms. Don't reach too far- I'll say why in a sec. Basically, your legs come up until your shins are vertical, and your thighs are touching your stomach with your hands out forwars, straight.
This is the catch position, or "frontstops". In an actual boat, you'd have rotated the shoulders and one arm would be between your knees to keep the shape.
At Frontstops, you need to be able to transition smoothly from sliding forwards to powering back.
First thing to do it to SQUEEZE backwards with the legs. ONLY the legs should move at this point; the body should be rigid and still. You want to feel your weight come off of your arse, almost as if you're standing up. This is where the real power comes from.
Imagine you're pushing against a weight with your shoulders. You need to keep your pody rigid and strong to be able to fully use the immense power of your legs.
As you come through the stroke, your back will open up naturally. When your legs are flat again, your back rotates until it is in the finish position.
Then, you draw through with the arms, holding them level. Don't wrench at it or pull too hard; you'e finishing off the stroke and giving it a little fineagle of strength, not propelling the boat; that was your legs. The handle should finish a couple of inches in front of your chest. It's best to imagine that you're wearing a bra, and you're drawing the handle through to where the band under your boobs would be. That's the correct height. (It's easier to coach girls...)
Basically, don't rate too high (20 strokes a minute is useful to start, otherwise your technique falls apart) and don't have the resistance on the erg (rowing machine) up too high- 3.5 - 4 simulates the resistance of the water.