This resource contains three, differentiated codebreaking activities that will help you assess children's understanding of BIDMAS / BODMAS. (tes.com)
Visits are built around the demonstration of this iconic piece of WW2 history, and can also include presentations on the history of Bletchley Park, interactive talks on codes and ciphers, and hands - on codebreaking workshops. (educationbusinessuk.net)
Bletchley Park started off as a Victorian mansion taken over for codebreaking work during World War II. (92three30.com)