Solving tangram puzzles: A connectionist approach

A multimodal approach to coding discourse: Collaboration, distributed cognition, and geometric reasoning

Our research aims to identify children’s communicative strategies when faced with the task of solving a geometric puzzle in CSCL contexts. We investigated how to identify and trace distributed cognition in problem-solving interactions based on discursive cohesion to objects, participants, and prior discursive content, and geometric and cooperative concepts. We report on the development of a met...

The Convex Configurations of "Sei Shonagon Chie no Ita" and Other Dissection Puzzles

The tangram and Sei Shōnagon Chie no Ita are popular dissection puzzles consisting of seven pieces. Each puzzle can be formed by identifying edges from sixteen identical right isosceles triangles. It is known that the tangram can form 13 convex polygons. We show that Sei Shōnagon Chie no Ita can form 16 convex polygons, propose a new puzzle that can form 19, no 7 piece puzzle can form 20, and 1...

The Convex Configurations of "Sei Shonagon Chie no Ita, " Tangram, and Other Silhouette Puzzles with Seven Pieces

The impact of using problem-solving puzzles on Iranian intermediate EFL learners' lexical knowledge

This study tried to investigate the impact of using problem-solving puzzles onIranian Intermediate EFL learners' lexical knowledge. At first a homogenoussample of 30 Intermediate EFL learners attending in the third grade of Shahedhigh school in Lahijan were selected and they were randomly divided into twogroups, as experimental group and control group. In the first session, the pretestwas admin...

Solving nonogram puzzles by reinforcement learning

We study solvers of nonogram puzzles, which are good examples of constraint-satisfaction problems. Given an optimal solving module for solving a given line, we compare performance of three algorithmic solvers used to select the order in which to solve lines with a reinforcement-learningbased solver. The reinforcement-learning (RL) solver uses a measure of reduction of distance to goal as a rewa...