Claudia Marie Pacioni, 69, of Pullman, WA passed away April 6, 2023 at Pullman Regional Hospital due to complications from cancer.  She was born October 13, 1953 in Olympia, Washington.  She grew up in Chehalis, Washington.  She later lived in the Seattle area.  She had many jobs throughout her life; including working as a photographer and graphic artist for a local paper, a florist, and a farm hand at Carnation farms.  She served in the U.S. Coast Guard for 4 years and also spent time in the Coast Guard Reserves.  While in the Coast Guard, she met and later married Jeff Seifried.  Their Coast Guard years took them to California, Oregon and then back to Washington. While living in Oregon they had two children. It was during this time that Claudia discovered her love of teaching.   She returned to school at Bellevue Community College.  Claudia and the children moved to Pullman in 1995.  In Pullman, she found a community of friends and was able to pursue her passion for math.  She earned her bachelor and master's degree in mathematics at WSU.  She was most proud of securing art grants for the Snoqualmie school district, STEM grants for Eastern Washington schools, and designing mathematical curriculum.  She taught math at WSU from 2000 until her death.  She had many hobbies throughout her life; she enjoyed music, gardening and cooking.  She enjoyed learning and participating in everything life had to offer, she also enjoyed helping others.  She wanted to be remembered as a dedicated Mariners fan.  Claudia loved her dog and grandpups, her family and friends, but her greatest joy in life was her children.  She was extremely proud of her children.  She was preceded in death by her mother, Lucille, her brother, Richard, and her dog, Smokey.  She is survived by her sister Tami Schwender of Olympia, her daughter, Nina Seifried of Florida, her son, Neil and his partner Lacey, and friends Sandy, Judy, Mary, Theresa and Russ.  The memorial celebration will be held April 22, 2023 at Lawson Gardens, 1 pm to 4 pm.  She will be laid to rest at the Pullman City Cemetery.  Corbeill Funeral Home of Pullman, WA has been entrusted with arrangements.  Memorial donations may be made to the ACLU or ASPCA in her name.