4 papers
Preservice mathematics teachers understanding of mode
Md Amiruzzaman, Karl W. Kosko, Stefanie Amiruzzaman
This paper explores two preservice mathematics teachers' understanding of mode. Participants' initial understanding and understanding following use of an interactive virtual manipu…
Exploring students' understanding of median
Md Amiruzzaman, Karl W. Kosko
This paper explores middle-grade students' conceptions of median. Describes, where and why they struggle and provides learning trajectory to improve their understanding.
Multi-dimensional Skyline Query to Find Best Shopping Mall for Customers
Md Amiruzzaman, Suphanut Jamonnak
This paper presents a new application for multi-dimensional Skyline query. The idea presented in this paper can be used to find best shopping malls based on users requirements. A w…
Hide Secret Information in Blocks: Minimum Distortion Embedding
Md Amiruzzaman, Rizal Mohd Nor
In this paper, a new steganographic method is presented that provides minimum distortion in the stego image. The proposed encoding algorithm focuses on DCT rounding error and optim…