In order for students to build procedural fluency from conceptual understanding, the following must be true. Choose all that apply.

A. A student should think flexibly. A student knows more than one approach, chooses a viable strategy, and may use one method to solve and another method to double-check.

B. A student is expected to accurately complete timed fluency assessments multiple times a week to ensure understanding of basic computation.

C. A student knows when to apply a particular procedure appropriately.

D. A student can reliably produce the correct answer, exhibiting accuracy.

E. A student demonstrates the procedure easily, keeps track of sub-problems, and makes use of intermediate results to solve the problem, exhibiting effectiveness.