Children’s number-line estimation shows development of measurement skills (not number representations).
نویسندگان
چکیده
منابع مشابه
Children's number-line estimation shows development of measurement skills (not number representations).
Children's understanding of numbers is often assessed using a number-line task, where the child is shown a line labeled with 0 at one end and a higher number (e.g., 100) at the other end. The child is then asked where on the line some intermediate number (e.g., 70) should go. Performance on this task changes predictably during childhood, and this has often been interpreted as evidence of a chan...
متن کاملNumber Line Estimation Predicts Mathematical Skills: Difference in Grades 2 and 4
Studies have shown that number line estimation is important for learning. However, it is yet unclear if number line estimation predicts different mathematical skills in different grades after controlling for age, non-verbal cognitive ability, attention, and working memory. The purpose of this study was to examine the role of number line estimation on two mathematical skills (calculation fluency...
متن کاملDevelopment of number line representations in children with mathematical learning disability.
Children with a mathematical learning disability (MLD, n = 19) and low achieving (LA, n = 43) children were identified using mathematics achievement scores below the 11th percentile and between the 11th and 25th percentiles, respectively. A control group of typically achieving (TA, n = 50) children was also identified. Number line and speed of processing tasks were administered in 1st and 2nd g...
متن کاملLine completion number of grid graph Pn × Pm
The concept of super line graph was introduced in the year 1995 by Bagga, Beineke and Varma. Given a graph with at least r edges, the super line graph of index r, Lr(G), has as its vertices the sets of r-edges of G, with two adjacent if there is an edge in one set adjacent to an edge in the other set. The line completion number lc(G) of a graph G is the least positive integer r for which Lr(G) ...
متن کاملAn Error Estimation Model for Fixed-Point Number Representations
Recently, we need to display multimedia contents on relatively low-powered devices such as mobile phones and PDA’s. To support the multimedia capability on these devices, we fundamentally need efficient way of performing various mathematical operations. Although most devices use floating-point number representation formats such as IEEE754, recent application programs often use fixed-point numbe...
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: Developmental Psychology
سال: 2014
ISSN: 1939-0599,0012-1649
DOI: 10.1037/a0035901