My favorite way to teach children about Easter is with Resurrection Eggs. You might have already seen this idea around; I believe there are even sets you can purchase. I made our own set though because it really isn't that hard to do and lasts for years! There are lots of variations you will find when searching for Resurrection Egg sets so this set may not match up with others out there. Personally, the ability to customize your set is part of what makes these such an effective teaching tool.
Basically you need a dozen plastic eggs and an egg carton. Then you can copy and print out the list below and glue it to the inside of the egg carton. That will tell you what passage of scripture to read for each day, what is in each egg, and what it represents. I have found it helpful to either number the eggs or the slots in the egg carton so you know what goes where.
Day Read In Egg To Represent
Day 1 Luke 22:1-6 Silver Coins Judas betrayed Jesus
Day 2 Mark 14:12-26 Bread The last supper
(bread will mold, I used crackers)
Day 3 Luke 22:47-54 Sword Peter cuts off servant's ear
Day 4 Luke 22:55-62 Rooster Peter denies Jesus
Day 5 Matt. 27:1-2 Rope Jesus tied and whipped (Judas hangs himself)
Day 6 Matt. 27:11-31 Thorns Jesus' crown of thorns
Day 7 Luke 23:26-34 Cross Jesus dies on the cross
(I used popsicle sticks hot-glued together)
Day 8 Luke 23:35-43 Sponge Jesus is given sour wine
(vinegar works well for demonstration purposes)
Day 9 Luke 23:44-53 Linen Jesus' body is wrapped
Day 10 Matt.27:59-61 Rock Stone in front of the tomb
Day 11 Luke 23:54-24:1 Spices Women prepare spices
(whole cloves, lavender, any larger spice that smells good)
Day 12 Luke 24:1-12 Empty Jesus is risen. He's ALIVE!