Over the past 100 years, technology has evolved in unprecedented fashion. Calculators, computers, and smart phones have become ubiquitous, yet school mathematics experiences for many children still remain without many powerful technological tools for the exploration of mathematics. We consider the evolution of some tools as we imagine a future.
Sarah B. Bush, Karen S. Karp, Jennifer Nadler, and Katie Gibbons
By examining ratios in paintings and using a free educational app, students can size up artists' use of proportional reasoning in their creations.
A cartoon exploring a problem about order of operations is coupled with a full-page activity sheet.
Kami M. Dupree
Abandon mnemonics and make stronger connections between the operations and properties of arithmetic.
big solutions to little problems
Jo Ann Cady and Pamela Wells
Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.
Sonalee Bhattacharyya, Nama Namakshi, Christina Zunker, Hiroko K. Warshauer, and Max Warshauer
This activity engages students in problem solving while exploring key concepts of number theory, such as divisibility and divisibility tests, place value, fractions, and scale factors.
Matt B. Roscoe and Joe Zephyrs
Pull on the threads of congruence and similarity in a series of lessons that explores transformational geometry.
Sarah B. Bush, Judith Albanese, and Karen S. Karp
Students engage in an activity of predicting, collecting, organizing, analyzing, and interpreting data by exploring the frequency of names that occur over three generations.
A cartoon involving presidential birth dates is coupled with a full-page activity sheet.
Gabriel T. Matney
To develop second-grade students' confidence and ease, use these three specific types of tasks that align with Common Core State Standards for Mathematics expectations.