Mental calculations and estimations are basic, everyday skills that are essential for real-life
arithmetic operations and number sense. This book presents a much needed overview and …

Although almost one in three US households shops on a budget, it remains unclear whether
and how shoppers track their in-store spending to stay within those budgets. A field study …

This study implemented a three-stage problem-based estimation instruction scenario and
combined it with mobile technology to provide elementary teachers with an effective e-tool …

This book was written as a tool to help teachers of prekindergarten to grade 3 make use of
recent developments in the cognitive psychology of mathematical learning. Chapters …

Mathematical literacy, which is the ability to use skills and concepts to reason, problem
solve, and communicate about mathematical situations (National Council of Teachers of …

Bu araştırmada 5-8. sınıflar matematik öğretmenlerinin tahmin becerisi hakkındaki görüşleri
incelenmiştir. Çalışmada nitel araştırma desenlerinden olgu bilim kullanılmıştır. Farklı …

Computational estimation skills of forty‐six prospective elementary teachers were assessed
using a researcher‐designed test. Estimation with fractions was more difficult than …

The purpose of this study was to investigate the high school students' ability on estimation
and computational estimation. The study was conducted in Denizli with 153 ninth grade …

Se conoce que el cálculo mental o estimativo ayuda a los estudiantes a desarrollar el
sentido del número ya mejorar la comprensión de las relaciones numéricas. Por lo anterior …

This study examined computational estimation strategies of the seventh grade students. A
case study methodology was used and data were collected from five high achievers via an …