-Messenger photo by Britt Kudla
Matthew Mitchell, of Duncombe, left, teaches Janet Secor, of Fort Dodge, about flint knapping during Ancient Techologies Day at Matt Cosgrove River’s Edge Discovery Center.

-Messenger photo by Britt Kudla
Akshara Sivakumaran, 13, of West Des Moines, throws an atlatl at a target during Ancient Techologies Day at Matt Cosgrove River’s Edge Discovery Center.

-Messenger photo by Britt Kudla
Rengarajan Palanivel, of West Des Moines, attempts to catch a group of sticks — a Native American game — during Ancient Techologies Day at Matt Cosgrove River’s Edge Discovery Center.

-Messenger photo by Britt Kudla
Kevin Souder, of Fort Dodge, left, and Annie Canning, of Fort Dodge, plays an ancient Native American lacrosse game during Ancient Techologies Day at Matt Cosgrove River’s Edge Discovery Center.

-Messenger photo by Britt Kudla
Rudhula Palanivel, 13, of West Des Moines, plays an ancient Native American game during Ancient Techologies Day at Matt Cosgrove River’s Edge Discovery Center.