Considers a ball which is dropped from a height h above a flat surface and rebounds to a height rh, when r is a positive fraction less than one. The question asked is if the ball continues to fall and rebound in the same manner, how much time is required for the ball to come to rest? (RP)

Included are eleven short articles on various aspects of mathematics. (FL)

Short biographic sketches of Sofya Krukovsky Kovalevsky and Emmy Noether are given. (MK)

Results are investigated when the axioms for a group have been altered. (DT)

Explores logarithms of negative numbers spurred by an unanticipated result given by a calculator. Shares the perspectives of the teacher and the teacher-as-learner. (Author/NB)

Examines samples of the use of context in five innovative curricula to reflect on what role it plays in the teaching and learning of mathematics. (Author)

Discusses common misconceptions in algebra, including: grouping symbols and order of operations; equations, inequalities, and expressions; and domains. Offers recommendations to help students avoid these mistakes. (MKR)

In this note, an integrated form of some significant means with two variables is provided, and some chains for mean value inequalities are obtained. At the same time, a concise family of algebraic functions appears, which satisfy Mitrinovic's requirements.