Some reading and ideas for observing Holy Week:
Amy at Splendor in the Ordinary on Palm Sunday
Liturgical Year for Little Ones has great ideas - note especially "for the Little Ones" - for families during Holy Week. and more here.
Dana at Roscommon Acres has a Holy Week lesson plan.
Feel free to leave a comment with a link to your own Holy Week post - or someone else's that you enjoyed. I'll try to update with new links during the week.