The following are references for the videos in the series The Bible K-12, Grade 4 parts D, E1, and E2:
Part 4D: Blood Sacrifice:
Abel's offering: Genesis 4:3
Noah: Genesis 8:20
Abraham: 12:8, 13:18 (implication of blood sacrifice), 22:3, 7-8
(story of Isaac's being offered), 13 (ram offered instead of
Isaac)
Blood atonement: Leviticus 17:10-11
Description of offerings: Leviticus 1-7
Day of Atonement: Leviticus 16
PART 4E1: Important symbols
Circumcision: Genesis 17:9-14, Leviticus 12:3
Spiritual circumcision: Deuteronomy 10:16, Jeremiah 4:4
Torah (Law): Leviticus 11:46-47, 19:37, 27:34
Numbers 36:13, Deuteronomy 30:9-10, 31:9-13
Sabbath: Exodus 20:8-11, 31:12-17, Deuteronomy 5:12-15
The Temple: II Chronicles 5, 6:12-42, 7:1-3
It's destruction: II Chronicles 36:7, 18-19
PART 4E2: Festivals and Holy Days
Sabbath Year: Exodus 23:10-11, Leviticus 25:1-7
Year of Jubilee: Leviticus 25:8-55
Passover: Exodus 12:1-14, Numbers 9:1-14
Weeks: Numbers 28:26-31
Day of Atonement: Leviticus 16, 23:26-32
Tabernacles (Booths): Leviticus 23:39-43
Purim: Esther 9:18-22
Hanukkah ("Dedication"): John 10:22 (this began in the
"intertestamental" period, so it is not mentioned in the
Old Testament) (I Maccabees 4:59)