Students notoriously struggle with division of fractions in 5 key areas. Hear what those 5 areas are and how recommendations address the limitations.
Janet Sharp and Rachael M. Welder
Andrew M. Tyminski and James K. Dogbey
Division of fractions, a troublesome area for students, is looked at anew using a common denominator algorithm.
when will I ever use this?
Calculating a half-life, the approximate time it takes for the body to remove one-half the active ingredient in a medicine, provides the real-life tie-in to this activity.
Debra I. Johanning and James D. Mamer
Developing number and operation sense associated with fraction division is viewed from multiple perspectives: modeling, equivalence, and symbolism.
Alfinio Flores and Melina D. Priewe
Students explore multiplicative comparisons and the meaning of remainders using their own concrete representations, including orange wedges.
Diana L. Moss and Lisa Poling
Students explore the mathematics found in chocolate production.
readers speak out
This opinion piece discusses how simplicity, ease, and efficiency—in the guise of shortcuts, tips, and packed procedures—kill mathematical reasoning.
Casey Hord and Samantha Marita
Support math conversations and teach students to approach various problem-solving tasks by encouraging the use of tables.
Juli K. Dixon and Jennifer M. Tobias
Anticipate and address errors that arise when fractions are placed in context and illustrated with models.
Kami M. Dupree
Abandon mnemonics and make stronger connections between the operations and properties of arithmetic.