Six problem types were identified.
For example, in a study with college students, Rohrer and Taylor (2007) found that shuffling math problems that involved calculating the volume of different shapes resulted in better test performance 1 week later than when students answered multiple problems about the same type of shape in a row.
The system logs learning-related features at multiple granularities (e.g., problem text, problem type, student actions, and timestamps) and provides researchers with a number of useful student, class, and school-level covariates.
Daniel Schorr, the veteran broadcast journalist, acknowledged on NPR last week that Washington has a hard time managing multiple problems and tends to be a "one-thing-at-a-time type of town".
Multiple problems ensued.
The researchers found multiple problems.
There are multiple problems with this formula.
The reform solved multiple problems.
These multiple problems work against inflation.
— by tackling multiple problems at once.
