Learners read the definitions of "say" and "tell" and decide when to use these words in practice sentences.

The student reviews definitions of coarse/course and completes a practice exercise.

In this learning activity you'll review conditional sentences and match the "if clause" with the correct "result clause."

In this interactive object, learners practice using the phrasal verbs "get on," "get over," "get away," "get down to," and "get away with."

Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.

Learners follow steps to convert numbers from Gray code to binary code. They then view steps to change binary values to Gray code numbers.

Learners follow steps to add fractions with different denominators. They also review fraction concepts, do a drag-and-drop exercise involving fraction terms, and add fractions with common denominators.

In this animated learning object, users study the factors that affect a pipe’s fluid flow and how those factors pertain to a numerical value (the Reynolds Number).

Learners examine the information on a title block and answer questions about that information in an interactive quiz.

Practica la gramática de los pronombres y los verbos de ser y gustar.