"Carol Harris will never be forgotten at this school and we are sincerely grateful to the Wooden Spoon for donating £13,000 to fund the project."
Also at the unveiling was Rhondda Cynon Taf Mayor Sylvia Jones and representatives of the Wooden Spoon while the special guest was Wales, Cardiff Blues and British and Irish Lion rugby player Martyn Williams MBE.
Unveiling the plaque Martyn Williams said:"It is a brilliant gesture by Wooden Spoon's Wales region and a privilege for me to unveil the plaque."
Carol and Bob, of St Stephens Avenue, were a popular couple in the community and for several years were mine hosts at the Griffin Inn in Pentre.
Mr Harris said, "It was a very proud day for the family. For a plaque to be at the school bearing Carol's name has a very special meaning."
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