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The article focuses on several classroom activities that prompt students to investigate and discover mathematical formulas in determining the areas of shapes through the use of dot papers. It is said that students in the U.S. are rarely provided with chance to find out the formulas for themselves. Several mathematical problems on finding areas on dot paper are presented.

The article explores student activities that feature various problems associated with three-sided polygons. It notes that the mathematics by the month activity for January explores the counting of triangular figures which are grouped by grade bands and featured a monthly theme. It highlights the construction of triangles using various materials, including paper, drinking straws, and toothpicks. The students are told to create their own triangle problems and have them look for a partner to solve them. It notes that geodesic

This article describes how mathematics instruction is addressed in an early childhood classroom and how it reflects state and national mathematics standards. In drafting their own standards, many states are also recognizing the need for early childhood standards. With increased attention being focused on the youngest children in our schools, changes in mathematics instruction that have occurred over the past decade are most evident in early childhood education. Mathematics is hidden in many ways in the prekindergarten classroom in which author teach. The center houses materials for cutting, gluing, letter writing, stencil work, and so on, including several kinds and shapes of paper--construction paper, perforated computer paper, envelopes, and rolls of adding-machine tape