Keep it really safe!
Use compound conditions to reinforce the encryption pattern on a safe-deposit box.
- Read through the student material in the LEGO® Education SPIKE™ App.
2. Engage (5 Min.)
- Use the ideas in the Ignite a Discussion section below to engage your students in a discussion related to this lesson.
- Use the video to explain the lesson.
3. Explore (20 Min.)
- Have your students work in pairs to build the super-safe-deposit box.
- Ask them to play the program to see how the lock works.
4. Explain (5 Min.)
- Facilitate a discussion about how and when to use "AND" and "OR" in compound conditionals
5. Elaborate (15 Min.)
- Ask your students to make their super-safe-deposit boxes even more secure by adding compound conditionals to their programs.
- Don't forget to leave some time for cleanup.
- Give feedback on each student's performance.
- You can use the assessment rubrics provided to simplify the process.
Ignite a Discussion
Start a discussion about iteration or fixing things by asking relevant questions, like:
- What can happen if somebody hacks your password?
- How can you evaluate the strength of a password?
- What's a compound condition?
Have your students watch this video to see what they're about to do.
Split each team's building tasks to ensure that everybody is actively involved:
- Student A: Super-Safe box
- Student B: Super-Safe door and arm
Align Motors Correctly
Make sure the arm is raised when you start the program.
This model has a manual key to unlock the door if needed.
Simplify this lesson by:
- Programming just one compound condition
Take this lesson to the next level by:
- Having your students add more sensors (e.g., Distance Sensor, Force Sensor) to their models to create other compound conditions
- Having each team challenge another team to unlock their super-safe-deposit box
- Asking your students to use the NOT function when defining their conditions
Teacher Observation Checklist
Create a scale that matches your needs, for example:
- Partially accomplished
- Fully accomplished
Use the following success criteria to evaluate your students' progress:
- Students understand what a compound condition is.
- Students are able to use compound conditions in their program.
- Students can discuss digital security in detail and with precision.
Have each student choose the brick that they feel best represents their performance.
- Blue: I've used one compound condition in my program
- Yellow: I've used two compound conditions in my program.
- Violet: I've used more than two compound conditions to create a super safe program!
Encourage your students to provide feedback to others by:
- Having one student score the performance of another using the colored brick scale above.
- Asking them to present constructive feedback to each other so that they can improve their group's performance during the next lesson.
Language Arts Extension
To incorporate language arts skills development:
- Have your students explore the meaning of digital security terminology, like:
▷ Compound Conditions
▷ AND, OR, NOR, NOT
▷ Case sensitive
Note: This will make for a longer lesson.
Students who enjoyed this lesson might be interested in exploring these careers pathways:
- Information Technology (Computer Programming)
- Information Technology (IT Applications)
- Information Technology (Oracle / Database Programming)
- Information Technology (Web Design)
- Explore compound conditional programming
Design and iteratively develop programs that combine control structures, including nested loops and compound conditionals.
Acquire and use accurately grade-appropriate general academic and domain-specific words and phrases; gather vocabulary knowledge when considering a word or phrase important to comprehension or expression.
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