Off You Go is a PK-12 mathematical routine that leverages children's home resources and assets to help students take a concept with which they have initial or informal understanding and explore and test its boundaries to support defining or estimating with precision. The authors provide a guide for how to adapt this routine to engage students at…

In an age when distance learning has become part of the "new normal," educators know that rich remote math teaching involves more than direct instruction, online videos, and endless practice problems on virtual activity sheets. Using both personal experience and those of teachers in real K-grade 12 online classrooms, distance learning…

The desire to persuade students to avoid strictly memorizing formulas is a recurring theme throughout discussions of curriculum and problem solving. In combinatorics, a branch of discrete mathematics, problems can be easy to write--identify a few categories, add a few restrictions, specify an outcome--yet extremely challenging to solve. A lesson…

This column presents ideas and techniques to enhance your science teaching. This month's issue shares information about a unit promoting scientific literacy and the engineering design process. The integration of engineering with scientific practices in K-12 education can promote creativity, hands-on learning, and an improvement in students'…

Discusses the card game Numero and its use in the classroom to teach mathematics. Includes a pack of playing cards, an instructor's booklet, and an instructional video. Advocates using Numero as a teaching tool as it is adaptable to all ages. (NB)

Describes the fundamentals of dimensionality and the relationships of the elements in a four-dimensional coordinate system. Outlines a number of analogies between the elements and techniques for creating images of one-point perspective. Describes two of the ways in which realistic imagery can be used to illustrate the relationships in a…

Introduces the Sharp EL-9600 graphing calculator and its capabilities, and discusses its possible uses in mathematics classrooms. (ASK)

Discusses some surprising properties of the natural numbers set such as axioms for natural numbers and mathematical induction. (ASK)

Presents two activities on pentominoes using geoboards and rectangles. (ASK)

This book contains a set of versatile enrichment exercises that cover a very broad range of mathematical topics and applications in geometry including Euclidean, post-Euclidean, and non-Euclidean geometry. Several criteria have been used in developing the activities and selecting the topics that are included. All of them bear heavily and equally…

Presents exemplary material from the publication "From Little Acorn Grow--Spreadsheets 9 to 13," a photocopiable resource book that contains spreadsheet ideas. Highlights the process of preparing the publication. (JRH)

Presents an activity that explores the completion of squares from the geometric point of view. (ASK)

Discusses the origins of logarithms and calculations with logarithms. (ASK)

Presents examples of short writing assignments that are intended to keep the lines of communication open between teachers and students. Discusses their outcomes and student feedback and suggestions. (ASK)

Describes the use of investigations for the purpose of assessment, teaching, and learning. Lists types of questions that can be included in investigations. Explains how to write an investigation and provides some examples. (ASK)