It is critical that goaltenders understand and master the concept of depth control. Especially at a young age (and size), controlling depth and angles will result in more saves and build confidence.
When the puck is in this area the goaltender is either on the post or is tracking the puck behind the net.
When the puck is in this area the goaltender is aware of a potential lateral play or is recovering to be set on a rebound.
When the puck is in this area the goaltender will have his or her skate blades on the top of the crease (red outline of the crease). This is the depth is where goaltenders should be prior to most shot attempts against them.
When the puck is in this area the goalie reaches the aggressive depth to address the play as the puck enters the defensive zone.
Just as critical as depth control, angles play an important role in goaltending.
This chart to the right illustrates the 5 on-ice reference points for goalies to drill into their routines and with repetition become natural control points on angle control.
Coaches - utilize a marker on the ice to label these points for your goalies (1,2,3,4,5) during practice. Also, leverage those marks when practicing crease movement (see drill library below).
Various info, topics and letters (including from years past).
Gret clip from Goalcrease Jeff Hall
Check out 4:30 mark, great lesson on "rebound control"!