A math teacher uses class time for direct instruction of math skills, where modelling the process of solving the problems is the teacher's focus. He then sends the students home with math problems to complete for homework. Upon evaluating student performance on homework and tests, the teacher isn't satisfied with student progress.

Which of the following practices would most likely support student learning?

A. More homework
B. More modeling of problems
C. Guided practice
D. One-on-one instruction