Help Center

A new lesson and corresponding objective on the basic use of digital multimeters (DMMs) was added.

The media was reworked to better illustrate concepts and improve accessibility. 

It has been revised to include a greater emphasis on the real-world value of geometry in manufacturing. Specifically, the class now includes descriptions and examples of how understanding lines and angles allow users to accurately interpret prints, set up machines, align parts, and inspect features. Lessons that previously relied on busy, text-based sample math problems have been updated with clearer, step-by-step examples.

Introduction to Mechanical Systems 101 received major media updates and minor textual updates. Most visuals have been updated to better relate to concepts and improve overall quality. 

We have updated most visuals in the class to improve clarity and understanding. We have also refined some of the vocabulary definitions so that they more closely aligned to the topic of pneumatic components.

This class has been updated to replace redundant lessons with new lessons on adjusting speed and feed and machine maintenance, which are essential to lathe operation. Other relevant content, including information on chip evacuation, grinding lathe tool bits, and dial indicators, has also been added. We updated the media to better illustrate concepts and to walk learners through the different methods of cutting on a lathe.

Select media and explanations have been updated to improve design and clarity. Key vocabulary terms have been rewritten to focus more specifically on how these terms apply to assembly. Some text has been reworded to make the class easier to follow.

This class was updated and refocused to place stronger emphasis on connectivity, architecture, and AI enablement. The goal was to align the material with current industry trends while keeping all examples practical and applicable. The new content highlights how data flows through IIoT systems and how devices and networks stay connected. It also explains how intelligence is added through modern systems that use industrial networking, integrated sensors, and AI or machine learning applied to IIoT data streams. 

This class has been updated to increase emphasis on practical applications of circles and polygons in manufacturing contexts to better demonstrate how geometric concepts apply to tasks such as interpreting prints, planning layouts, and ensuring part accuracy. We expanded the circles section to include central angles and more explicit angle-based calculations, and clarified relationships between tangents, angles, and circle properties. In the polygons portion, we added information about exterior angles and strengthened coverage of polygon classifications and calculation methods. We also introduced a new focus on solving integrated problems involving tangents, polygons, and angle relationships. 

This class was updated to improve reading comprehension and include more refined vocabulary definitions. Some media has also been replaced to better demonstrate the concepts in the accompanying lessons. 

This class has been updated to match the most recent edition of the National Electrical Code® published in 2026. These updates include revisions to several vocabulary terms as well as some media updates. In addition, some text has been revised for clarity.

This class provides frontline leaders with a look at best practices for leading people. All lessons and objectives were updated. The vast majority of topic coverage remained the same, with the inclusion of some new content related to behaviors, attitudes, and practices expected of leadership figures; laws and regulations that guide performance management; the development of SMART goals for guiding performance; and handling conflict, poor performance, and discipline. All media was updated to ensure optimal connections between imagery and the text. Additionally, scenario-style animations were used to "show" rather than "tell" learners how to handle certain situations.