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Direct linkCoggins, Porter E., III; Glatzer, Tim – PRIMUS, 2020
We present an algorithm for a matrix-based Enigma-type encoder based on a variation of the Hill Cipher as an application of 2 × 2 matrices. In particular, students will use vector addition and 2 × 2 matrix multiplication by column vectors to simulate a matrix version of the German Enigma Encoding Machine as a basic example of cryptography. The…
Descriptors: Mathematics Instruction, Matrices, Technology, Addition
Download full textUbah, Ifunanya J. A.; Bansilal, Sarah – South African Journal of Childhood Education, 2018
Background: The concept of rational numbers is one of the learner's first experiences with a Mathematics concept beyond the basic skills operations on whole numbers. The personal knowledge of fractions that teachers bring to the teaching context is important because teachers mediate the conceptions that their learners construct. Aim: This study…
Descriptors: Preservice Teachers, Mathematics Instruction, Fractions, Mathematics Teachers
Holm, Jennifer, Ed.; Mathieu-Soucy, Sarah, Ed.; Oesterle, Susan, Ed. – Canadian Mathematics Education Study Group, 2017
This submission contains the Proceedings of the 2017 Annual Meeting of the Canadian Mathematics Education Study Group (CMESG), held at McGill University in Montreal, Quebec June 2-6. The CMESG is a group of mathematicians and mathematics educators who meet annually to discuss mathematics education issues at all levels of learning. The aims of the…
Descriptors: Foreign Countries, Mathematics Instruction, Writing Exercises, Mathematical Concepts
