The fifth-grade curriculum presents many opportunities to use students' prior mathematical knowledge as a way to bridge new and more difficult mathematical ideas. In this article, the authors document an area tiling task given to fifth-grade students to connect aspects of area measurement covered in earlier grades to grade-level standards such as:…

Summarizes solutions submitted for a problem posed in a previous issue of Mathematics Teaching in the Middle School. The problem pertains to making a fraction equivalent to one-third that uses all the numbers, zero through nine, exactly once. Includes actual student solutions. (DDR)

Describes a project that allows students to derive fractions with varying denominators, estimate that fractional representation in a pie chart as a piece of the whole, and add their various fractions to find the sum equal to one whole. Includes samples of student work. (DDR)

Proposes a model that displays the five components of the statistical problem-solving process. Focuses on the collection of coins in sets by mint location and fully describes the procedures. Includes ideas for data collection and analysis. (DDR)

Details six activities that utilize data contained in a telephone book. Topics include data display, fractional numeracy, random art, estimation, and probability. Contains a summary and extension activities, some of which focus on permutations and combinations. (DDR)