From whole number to real number: Applying Rasch measurement to investigate threshold concepts
نویسندگان
چکیده
منابع مشابه
From numerical concepts to concepts of number.
Many experiments with infants suggest that they possess quantitative abilities, and many experimentalists believe that these abilities set the stage for later mathematics: natural numbers and arithmetic. However, the connection between these early and later skills is far from obvious. We evaluate two possible routes to mathematics and argue that neither is sufficient: (1) We first sketch what w...
متن کاملWhere Our Number Concepts Come From.
Like most cognitive scientists, I take concepts to be mental symbols. Mental symbols are not all concepts, as there are also sensory representations, motor representations, and perceptual representations. From the perspective of cognitive science, a theory of concepts must specify their format, what computations they enter into, what determines their content, and how they differ from other type...
متن کاملApplying the Residue Number System to Network Inference
Use of neural networks for computer vision, speech recognition, and other applications has exploded in recent years, in part due to their unprecedented performance on a variety of benchmarks. Nonetheless, highthroughput and energy-efficient evaluation of such neural networks, and in particular, convolutional neural networks (CNNs), remains an active field of research. Evaluation of networks is ...
متن کاملApplying the Logarithmic Number System to Application-Specific Designs
When designing a microprocessor, the choice of a given arithmetic greatly impacts characteristics such as the implementation of the functional units, the required word size, and even the optimum algorithms that can be used. The diversity of products that incorporate a microprocessor makes the best choice application or system dependent. The Logarithmic Number System (LNS) allows very fast, powe...
متن کاملNumber Worlds: Visual and Experimental Access to Elementary Number Theory Concepts
Recent research demonstrates that many issues related to the structure of natural numbers and the relationship among numbers are not well grasped by students. In this article, we describe a computer-based learning environment called Number Worlds that was designed to support the exploration of elementary number theory concepts by making the essential relationships and patterns more accessible t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pythagoras
سال: 2009
ISSN: 2223-7895,1012-2346
DOI: 10.4102/pythagoras.v0i70.37