Ups and Downs	3651: Dendrochronology Hope Deeden and Johanna Chisnell say it's a perfect match for the beginning of Ups and Downs
June 11:	2768: The Oracle's Oration
May 28:	2042: Coding Conundrum
May 14:	362: Open and Shut Case
April 30:	2968: Mind Reading
April 16:	1009: Mean Jellybeans
March 26:	2056: Ant Race
March 12:	13215: Increasing or Decreasing Danger?
February 26:	13213: Find the Sequence Formula
February 12:	13247: Train Travel
January 29:	13212: Cereal Consumption Comparison
January 15:	13227: Pythagorean Placement
January 1:	13208: Equal Bank Accounts
December 11:	13207: Hagrid's Height
November 27:	13226: Steep Climbs
November 13:	13225: Overlapping Triangles
October 30:	13224: Coverage
October 16:	13223: Line up the Birthdays
October 2:	13202: Crickets Chirping in a Line
September 18:	13201: Filling Glasses
September 5:	12247: Forming Triangles from a Folding Ruler