**In this unit, students learn about different aspects of cyber security. Students build empathy around the concept of cyber security by learning about different types of data categories and by conducting research into how cyber security is addressed globally. The next set of lessons allow students to learn and apply concepts for creating effective account passwords, converting decimal data strings to binary strings, creating simple programs, and basic encryption. The unit culminates in a design challenge where students design, build, and test a model of a device that can safely transmit data through the application of multiple layers of encryption and patterns.**

**Educational outcomes**

- Lesson 1: Students will conduct research to find and integrate information on different types of data that must be protected
- Lesson 2: Students learn to create strong passwords to protect user accounts from unauthorized access
- Lesson 3: Students learn to convert decimal numbers into binary numbers to understand the nature of digital data transfer
- Lesson 4: Students learn how to create simple directional programs and then convert the directions into binary code
- Lesson 5: Students learn how to create, use, and compare messages encrypted using a simple substitution pattern
- Design Challenge: Students develop a solution for transmitting information that is protected by multiple layers of encryption

NOTE: Cyber security is an important aspect of digital citizenship. Access RAFT lessons on DIGITAL CITIZENSHIP (coming soon!)

**STEAM INTEGRATION**

In **Lesson 1**, students find and integrate information on types of data requiring protection and how cyber security is addressed globally and then write a mini case study (RI.4.9). They learn how to create and test the strength of effective passwords in **Lesson 2** (4-PS4-3). **Lesson 3** teaches students convert decimal numbers into binary data strings, adding and subtracting multi-digit numbers in the process, and then applying this technique to simple programs (4.NBT.B.4). The culminating design challenge requires students to apply all of the above described skills.