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Among 1,770 healthcare workers serving in high-risk care areas for coronavirus disease 2019 (COVID-19), 39 (2.2%) were seropositive. Exposure to severe acute respiratory coronavirus virus 2 (SARS-CoV-2) in the community was associated with being seropositive. Job or unit type and percentage of time working with COVID-19 patients were not associated with positive antibody tests.

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

A linear card-sort activity helps students synthesize their understanding of linear functions while problem solving and reasoning; contains an activity sheet.

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

A professional development workshop supports teachers' understanding of the Standards for Mathematical Practice and helps them transfer this knowledge to the middle school classroom.

Leverage the parallels between teaching writing and teaching math to nudge your students toward deeper understanding

How might you, as a teacher, handle this classroom situation? A class of first graders is given the following problem to solve. The teacher begins, “A queen's bed is 6 feet long. The bed the princess sleeps in is 2 feet shorter than the queen's bed. How long is the princess's bed?” Several children answer that the princess's bed is 8 feet long. One child explains this answer by saying that he counted up 2 from 6.

To elicit creative thinking, this open-ended problem asks students to analyze pattern found on a calendar.

To elicit creative student thinking, this open-ended problem asks solvers to create shapes that have certain constraints.

To elicit creative student thinking, this open-ended problem asks solvers to choose labels for a supplied graph and write a story that will fit the graph.

To elicit creative student thinking, this open-ended problem asks solvers to choose labels for a supplied graph and write a story that will fit the graph.

To elicit creative student thinking, this open-ended problem asks solvers to measure as many squares as possible using a certain size of cardboard.

To elicit creative student thinking, this open-ended problem asks solvers to analyze various multiplication problems.

To elicit creative student thinking, this open-ended problem asks solvers to analyze area and perimeter.

To elicit creative student thinking, this open-ended problem asks solvers to decide which of four quadrilaterials do not belong in a group.

To elicit creative student thinking, this open-ended problem asks solvers to analyze how much time it will take two people to complete a job.

Eight management functions influence the productivity of unit personnel differently. Although leadership of the first-line manager is the primary driving force, time and effort expended in operations detract from this unit output. Better use of second-line managers is a choice strategy to enhance productivity. Benner's model of professional development, in combination with the creation of a first-second line shared leadership operational framework, is recommended, with follow-up evaluations on unit productivity effect.