Each lesson includes an associated set of practice problems. Teachers may decide to assign practice problems for homework or for extra practice in class; they may decide to collect and score it or to provide students with answers ahead of time for self-assessment. It is up to teachers to decide which problems to assign (including assigning none at all).

The practice problem set associated with each lesson includes a few questions about the contents of that lesson, plus additional problems that review material from earlier in the unit and previous units. Distributed practice (revisiting the same content over time) is more effective than massed practice (a large amount of practice on one topic, but all at once).

Practice problems are available in digital or print format.

Digital practice sets use a variety of technology-enhanced items (TEIs) to provide students with opportunities to prepare for next-generation assessments. Many of the items in the digital practice sets can be automatically scored. Note that by default students cannot check answers on digital practice problems in order to enable teachers to use these as quizzes if desired.

Practice Problems