A Mathematically Creative Four-Year-Old—What Do We Learn from Him?

A Mathematically Creative Four-Year-Old—What Do We Learn from Him?

A 4-year-old child, who is very interested and precocious in mathematics, was interviewed doing mathematical tasks in order to find out how advanced can a 4-year-old child be? His mathematical knowledge and ability are very high. Danny was able to count objects and add them, memorizing many of the addition facts. He was able to check if numbers are even or odd. He solved a variety of challengin...

What Do We Learn from Experimental Algorithmics?

Experimental Algorithmics is concerned with the design, implementation , tuning, debugging and performance analysis of computer programs for solving algorithmic problems. It provides methodologies and tools for designing, developing and experimentally analyzing eecient algorithmic codes and aims at integrating and reinforcing traditional theoretical approaches for the design and analysis of alg...

What do we learn from rating metaphors?

What makes some metaphors easier to understand than others? Theoretical accounts of metaphor processing appeal to dimensions like conventionality and aptness to explain variability in metaphor comprehensibility. In a typical experiment, one group of naive participants rates a set of metaphoric sentences along these dimensions, while another is timed reading the same sentences. Then, the ratings...

Multiple sexual partners and condom use among 10 - 19 year-olds in four districts in Tanzania: What do we learn?

BACKGROUND Although some studies in Tanzania have addressed the question of sexuality and STIs among adolescents, mostly those aged 15 - 19 years, evidence on how multiple sexual partners influence condom use among 10 - 19 year-olds is limited. This study attempts to bridge this gap by testing a hypothesis that sexual relationships with multiple partners in the age group 10 - 19 years spurs con...

Do we learn our lessons from the population-based interventions?