Divide the team into pairs with one ball per pair.
One of the players takes the ball in their hands and depending on the age group, the other player positions themselves 5-10 meters away.
The player performs a throw-in. The other player stops the ball and passes it back.
Repeat 10 times and switch roles.
Quality factors
Throw-in technique.
The ball doesn't go past the receiver, but stops properly.
Key questions
How do you ensure that the throw is according to the rules (both feet on the ground, ball over the head)?
How can you use your whole body to get more power into the throw?