SPIKE™ Prime Set

Keep it really safe!

Use compound conditions to reinforce the encryption pattern on a safe-deposit box.

90-120 min.
Intermed.
Grades 6-8
lesson-header

Lesson plan

1. Prepare

  • 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.

6. Evaluate

  • 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.

lesson-header

Building Tips

Tandem Build
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
teacher-tandem

Align Motors Correctly
Make sure the arm is raised when you start the program.

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Manual Unlock
This model has a manual key to unlock the door if needed.

teacher-manual-unlock

Coding Tips

Main Program

SPIKE Kickstart your business Keep-it-really-safe Step03-Program - en-us

Possible Solution

SPIKE Kickstart your business Keep-it-really-safe Teacher Solution en-us

Other Programs

SPIKE Kickstart your business Keep-it-really-safe Teacher Other - en-us

Differentiation

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

Assessment Opportunities

Teacher Observation Checklist
Create a scale that matches your needs, for example:

  1. Partially accomplished
  2. Fully accomplished
  3. Overachieved

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.

Self-Assessment
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!

Peer-Assessment
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.
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Language Arts Extension

To incorporate language arts skills development:

  • Have your students explore the meaning of digital security terminology, like:

    ▷ Boolean
    ▷ Conditions
    ▷ Compound Conditions
    ▷ AND, OR, NOR, NOT
    ▷ Encryption
    ▷ 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)

Teacher Support

Students will:

  • Explore compound conditional programming

CSTA
2-AP-12 6-8
Design and iteratively develop programs that combine control structures, including nested loops and compound conditionals.

Common Core
CCSS.ELA-LITERACY.L.7.6
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.

Student Material

Download, view or share the student worksheet, either as an online HTML page or a printable PDF