The resource "Spider's stablizer bar" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spider's wheels" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spin-off of "Rotary switched spout circuit"" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

Refreshed with an understanding of the six simple machines; screw, wedge, pully, incline plane, wheel and axle, and lever, student groups receive materials and an allotted amount of time to act as mechanical engineers to design and create machines that can complete specified tasks. For the competition, they choose from pre-determined goal options such as: 1) dumping goldfish into a bowl, 2) popping a balloon, or 3) dropping mint candies into soda pop (creating a fizzy reaction). Students demonstrate their functioning contraptions to the class, earning points for using all six simple machines, successful transitions from one chain reaction to the next, and completion of the end goal.

The resource "Spout OOP: with Maze" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout antennae and tail" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout battery configuration and polarization" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout circuit" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout lights" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout motor" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout motor mount" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout motor wiring" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout's reversing circuit and final assembly" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout's sliding SPDT switch" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout switches" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout tools" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

The resource "Spout wiring for LED eyes" is included in the "Electrical engineering" course from Khan Academy. This resource is one of the sub-topics in the "Home-made robots" topic area.

This lab demonstrates Hooke's Law with the use of springs and masses. Students attempt to determine the proportionality constant, or k-value, for a spring. They do this by calculating the change in length of the spring as different masses are added to it. The concept of a spring's elastic limit is also introduced, and the students test to makes sure the spring's elastic limit has not been reached during their lab tests. After compiling their data, they attempt to find an average value of the spring's k-value by measuring the slopes between each of their data points. Then they apply what they've learned about springs to how engineers might use that knowledge in the design of a toy that enables kids to jump 2-3 feet in the air.

The Stabilization Wedges game is a simple framework for understanding both the carbon emissions cuts needed to avoid dramatic climate change and the tools already available to do so. The resource, "Stabilization Wedges: A Concept and Game" included in "Lesson 1 Climate Change Negotiations" is a part of "Unit 10 Mock Summit and Portfolio Capstone Finale" included in Energy & Sustainability ES - Course 4.

To get a better understanding of complex networks, students create their own, real social network example by interacting with their peers in the classroom and documenting the interactions. They represent the interaction data as a graph, calculate two mathematical quantities associated with the graph—the degree of each node and the degree distribution of the graph—and analyze how these quantities can be used to infer properties of the social network at hand.