We study quantity judgements and number sense.

The research group combines basic cognitive science with mathematics education research to

1. Develop a better understanding of how children learn mathematics, and
2. Contribute to improving early and primary mathematics education.

Basic cognitive science

The research group is developing a new theory for how people perceive and judge quantity. We combine empirical studies and mathematical modeling to answer questions such as:

• What is the cognitive foundation for learning and understanding mathematics? 
• What cognitive functions are central to developing number sense? 
• What are the biological and sociocultural preconditions for learning mathematics (nature vs nurture)? 

Mathematics education research

The research group investigates children’s strategies for estimating and enumerating quantities to answer questions such as:

• How can activities that involve quantities, such as quick images and dice games, support children’s number sense? 
• How can we support children’s development of strategies for estimating continuous and discrete quantities?