Abraham gives God everything
I posted suggestions for a preschool VBS morning of activities related to the near-sacrifice of Isaac. Some of those suggestions can be adapted for older children.
The retelling of the story “Abraham Doesn’t Understand” is particularly good. [From The Family Story Bible, by Ralph Milton]
The BibleStoryGuy's retelling of this challenging story is also very good for all ages: God Will Provide the Lamb.