45 min
Straight arms, and finding a rest between every move
Demonstrate a climb with straight arms. Say what you are doing while you do it: the legs get you into a stable position, then one arm lets go, then you twist or push with the legs to reach.
A bent arm is an arm holding you up. A straight arm is a skeleton holding you up, and it does not get tired.
Stick to pink or easy white tags on vertical or overhanging terrain, not slab, and keep encouraging falls.
Cliffhangers. Find a stable position between every single move.
Everybody climbs at once, half the group to each coach on its own area of wall. Nothing here queues, so the split is not about turns: a cliffhanger nobody is watching for is an ordinary climb with pauses in it, and telling the two apart is what you are there to do.
For younger kids, swap the shake-out for touching the back of their own head. Same pause, easier to picture.
Arms stay bent the whole climb. The route is too hard. Drop a tag and try again.
They cannot find the rest. Stand underneath and name the foot to move. Most of the time the position is one foot placement away.