Code.org
Public Key Cryptography
Investigate how public key cryptography works. Scholars continue their study of one-way functions and asymmetric keys and apply this information to public key cryptography. They use an app to explore public key cryptography and its...
Institute of Electrical and Electronics Engineers
Public Keys, One Way Functions and Hard Problems
Use paint to teach about cryptography. Scholars explore public key cryptography by attempting to mix a secret color using paint. After the activity, they investigate the Diffie-Hellman method using prime numbers, exponents, and modular...
Curated OER
Animated Snowman
Students produce a web page with an animated snowman using DHTML and JavaScript. The finished project must work correctly in Netscape 4.7 and Internet Explorer 5.0 on both Mac and PC.
Teach Engineering
Strong-Arm Tactics
Experience collecting rock samples using a robotic arm with an activity that has pairs work together to operate a robotic arm. One pupil serves as the eyes and the other operates the controller. The objective is to be the fastest pair to...
Code.org
Routers and Redundancy
How are messages to the right recipient? Introduce the concept of routing Internet traffic by drawing a comparison to sending a letter. Groups use the Internet Simulator program to send messages to others using the same router...
Code.org
Algorithms Detour - Shortest Path
Young programmers investigate the Single Source Shortest Path problem by working in paris to devise their own algorithm. They then progress to using Dijkstra's Algorithm to solve the problem.
Teach Engineering
Start Networking!
Class members create their own social networks by collecting signatures before graphing the interactions with their fellow classmates. The degree distribution of the simulated social network is determined by calculating the degree of...
Code.org
Rapid Research – Data Innovations
Scholars conduct research into a computing innovation of their choice and figure out how it uses data. They prepare brief reports of their research in the second installment of the series.
Curated OER
How Communication Technologies Affect People
Third graders complete a worksheet, first with known information, and then with researched information. They create a PowerPoint, video, or radio broadcast to convey the results of their research. They learn to use a graphic organizer to...
Teach Engineering
Stop the Stretching
Stretch your teaching repertoire with an experiment on the elongation (stretching) and failure (break) of several materials. The point of the experiment is to design a composite material for chair webbing.
Teach Engineering
The Fibonacci Sequence and Robots
What better way to introduce the idea of a sequence than with robots! An educational lesson explains the classic Fibonacci sequence before pupils build and program a robot to move. Additionally, the lesson challenges individuals to...
National Sailing Hall of Fame
Sailboat Design Requirements
Sailboat design requires more than a half-circle and triangle sketch. After viewing a slideshow presentation that outlines the requirements for sailboat design, learners draw a design, perform the needed...
Computer Science Unplugged
Divide and Conquer—Santa’s Dirty Socks
The story "Santa's Dirty Socks" provides learners an example of a search algorithm that uses a divide and conquer system similar to a binary search algorithm. The included questions expand upon the concepts that follow the story.
Code.org
Sending Numbers
Binary graphing ... bit by bit. Pairs work together to develop a protocol in order to send the points of a graph. One partner sends the points and the other receives them and tries to recreate the graph. The pupils use the rubric to...
Code.org
Practice PT - The Internet and Society
Speaking of the Internet. The culminating instructional activity for the unit on the Internet challenges pupils to prepare short, two-minute speeches on an issue facing society. The pupils chose from three topics that connect...
Code.org
Good and Bad Data Visualizations
Good versus bad data. Pairs rate online collections of data representations from good to bad and then suggest ways to improve the visualizations. The class then creates a list of best practices and common errors in data representations...
Code.org
Discover a Data Story
"Data is so boring, there's no way to find any patterns in them." Or is there? Pairs investigate data sets using different data visualization tools to discover a trend that may exist in a data set. Once they find a trend or...
Code.org
Cleaning Data
"Clean the data!" "I did not know it was dirty." Introduce your class to the process of cleaning data so that it can analyze it. Groups work through a guide that demonstrates the common ways to filter and sort data. Pairs then...
Code.org
Making Data Visualizations
Relax ... now visualize the data. Introduce pupils to creating charts from a single data set. Using chart tools included in spreadsheet programs class members create data visualizations that display data. The...
Teach Engineering
Curb the Epidemic!
Class members use an applet on the Internet to simulate the spread of a disease. The simulation allows individuals to determine two nodes to vaccinate to limit the number of nodes infected. By running several simulations, scholars...
Teach Engineering
Challenges of Laparoscopic Surgery
Get some laparoscopic training without the pain with an activity that challenges class members to find out what it is like to perform laparoscopic surgery. Teams perform three different tasks and quantify their performance. The...
Teach Engineering
Exploring Acceleration with an Android
Small groups use rubber bands to accelerate an Android device along a track of books. They collect the acceleration data and analyze it in order to determine the device's velocity.
TryEngineering
Data Representation: Millions of Colors
How many colors do you know? The lesson teaches scholars how digital devices use binary and hexadecimal representations to store colors. They learn how millions of colors are available on these devices.
TryEngineering
Boolean Algebra is Elementary
See how Boolean algebra relates to video games with a lesson that teaches young scholars how to use Boolean algebra to create rules for a virtual world. They test the rule base for consistency in groups.