Curated OER
Secret Writing Devices
Elementary and middle schoolers explore the world of secret writing, otherwise known as cryptography. After an interesting introduction to the activity, learners utilize a decoder badge which uses the St. Cyr cipher - which is a cipher...
Curated OER
Encoded Meanings
Young scholars explore symbols in art and complete related activities. In this art symbols instructional activity, students compare symbols they recognize to those of an African culture. Young scholars create a collaborative work of art...
Curated OER
Matrices: A Secret Weapon
Students perform operations with matrices. In this algebra lesson, students use cryptography and cryptanalysis to solve problems. They add, subtract, and multiply matrices.