In this learning object, learners will follow the illness of an 83-year-old woman, noting changes in her condition and ordering the appropriate medical imaging studies needed to inform her physicians about both her progress and her treatment options.

Learners read about the various organizations that assist accountants and set standards and procedures.

Learners follow design steps incorporating a bleed, a technique used to allow for inaccuracies in the printing and trimming processes.

Using a game show format, learners test their knowledge of various pathologies as organized by body system.

Imagine you're a college student volunteering in a lab that includes animal research and you're trying to decide if this would be a good experience. Play through this module to understand the regulations for animal well-being and how they impact animal welfare. Prove you're an Animal Welfare Whiz!

In this learning activity you'll review the hexadecimal numbering system.

Students perform conversions among fractions, decimals, and percentages in this assessment.

In this animated and interactive object, learners follow two methods for converting a hexadecimal number to a decimal number. They test their knowledge in exercises at the end of the learning object.

In this learning activity you'll practice converting between hexadecimal and decimal and between hexadecimal and binary numbers.

In this video, learners view the parts of an animal cell and its organelles.

In this animated activity, learners examine a systematic method for converting a decimal number (base 10) into a hexadecimal number (base 16).

Decimals to Fractions

In this animated object, learners examine a systematic method for converting a decimal number (base 10) into an octal number (base 8).

Learners are introduced to the binary-coded decimal, a common way of encoding decimal digits in computing and electronic systems. A brief quiz completes the activity.

In this animated activity, sexual reproduction in animals is contrasted with the alternation of generation lifecycle of plants.

Learners examine two methods for converting an octal number to a decimal number. Exercises are provided at the end of the learning object.

In this learning activity you'll practice calculating the between the binary number system and the decimal number system.

In this learning activity you'll explore how to change a decimal to a fraction and learn a method to visually check the fraction for accuracy.

In this interactive object, learners identify the parts of an animal cell and its organelles.

This learning object introduces the three approximations of a diode.