This final Phase II lesson celebrates everything students have accomplished while gently preparing them for Phase III. Students review all the skills they’ve gained — coding, wiring, sensing, decision-making — and recognize that they can now control real physical systems with confidence.

The heart of the lesson is a creative hands-on challenge: students design and build a simple mini robot using the parts they already know. This activity gives them freedom to explore, reinforces key concepts, and helps them feel proud of how far they’ve come.

Student Learning Goals

By the end of this lesson students will be able to
• Reflect on and summarize the skills gained in Phase II
• Describe how robots Sense, Effect, and Act
• Identify sensors and effectors they know how to use
• Combine code, wiring, and logic to create a functioning mini robot
• Apply if/else logic in a purposeful, creative context
• Collaborate with teammates to design a working prototype
• Feel accomplished, confident, and ready for Phase III

Materials Needed

Arduino Uno boards
Breadboards
LEDs
Piezo buzzers
Photoresistors
Potentiometers
Resistors
Jumper wires
Paper and markers for sketching robot ideas
Computers with Arduino IDE
Protective table mats

(Everything they’ve used so far — nothing new.)

Teacher Preparation Notes

This lesson is meant to feel celebratory and empowering.
Encourage creativity rather than perfection.
Students may build simple systems (like light-activated buzzers) or more playful interactive gadgets (like dimming lights, sound alarms, etc.)
Make sure all previous lessons’ materials are available so teams can choose freely.
Your goal is to keep the room relaxed, curious, and proud.

Safety Notes

Unplug Arduinos before changing wiring.
Keep liquids away from electronics.
Avoid loud buzzer volume near ears.
Be mindful of LEDs getting warm if left HIGH for long periods.

Warm Up Activity

Show the “Congratulations Steam Engineers” slide.

Ask students
What is one thing you can do now that you couldn’t do before Phase II

Let them share
• Controlling LEDs
• Making sound
• Reading a sensor
• Writing code
• Using if/else logic

This sets a positive tone and reminds them how much they’ve grown.

Lesson Flow

**Step One

Celebrate Their Skills**
Use the PPT slides listing what they can now do.

Reinforce the big ideas with simple language
You connected and programmed a real microcontroller
You built circuits with LEDs and buzzers
You explored live data
You used sensors to make decisions
You connected code to the physical world

Let them feel proud — this is a huge achievement.

**Step Two

Introduce the SEA of Robotics**
Show the S-E-A slide.

Explain gently
All robots must
S — Sense the world
E — Effect the world
A — Act with logic

Tell students
You already know how to do all three.

Give a few simple examples
Sense: photoresistor or potentiometer
Effect: LED or buzzer
Act: if/else decision making

**Step Three

Review Their Toolkit**
Show the lists of sensors, evaluators, and actions.

Explain
Sensors: things that collect information
Evaluations: the decisions your code makes
Actions: what your robot does in response

Help them see the full picture of their abilities.

**Step Four

Review Your Code Toolbox**
Use the “You Can with Code” slide.

Highlight gently
Variables help us store information
pinMode sets inputs and outputs
digitalWrite controls LEDs
analogRead senses the world
delay adds pauses
if and else create decisions
tone creates sound
random can add fun and unpredictability

This prepares them to choose tools for their mini robot.

**Step Five

Introduce the Mini Robot Challenge**
Show the challenge slide.

Explain clearly
The robot can be ANYTHING
A light alarm
A sound-reactive toy
A brightness meter
A tone-changing instrument
A moving robot prototype (without motors yet)

The only requirements
• Use at least one sensor
• Use at least one effector (LED or buzzer)
• Use if and else in your code
• Make it do something interesting

Encourage imaginative thinking.

**Step Six

Brainstorming Time**
Have students sketch simple ideas.
Their robots can be funny, helpful, decorative, or playful.

Give them guiding questions
What will your robot sense
What will it do when that happens
What is the “interesting” behavior

Keep the room relaxed and creative.

**Step Seven

Build and Test**
Students begin wiring, coding, and experimenting.
Walk around and support gently.
Celebrate debugging moments with calm reassurance.

Encourage them
Try something simple first
Test often
Change one thing at a time

Remind them that “unfinished but working” is still a success.

**Step Eight

Share and Celebrate**
When time is up, let teams show their mini robots.
Each group briefly explains
What it senses
What it does
What decision it makes

Applaud every group — the room should feel joyful and energized.

**Step Nine

Look Ahead to Phase III**
Use the final slide
“You are ready for Phase III”

Explain
Next phase adds motors, motion, H-bridges, and more creativity.
Everything they learned here is the foundation for advanced robotics.

Let them feel excited and confident.

Teacher Notes for Each Slide

Congratulations slide
Let students feel proud — this is important.

Skills review slides
Use simple language to reinforce understanding.

SEA of Robotics
Help students see they already have everything needed to build a simple robot.

Sensors, Evaluators, Actions
Clarify the difference gently.

Code toolbox
Reassure them that they only need a few commands to be creative.

Mini robot challenge
Encourage creativity, keep expectations reasonable.

Phase III preview
Build excitement for movement and motors.

Independent or Group Activity

Option A: Sensor Surprise Robot
Use the photoresistor to trigger surprising actions.

Option B: Musical Mood Box
Potentiometer + buzzer to play different tones based on turn of the dial.

Option C: Light/Dark Guide Bot
LED lights up only when the room is dark.

Vocabulary and Concepts

Sensor
A component that collects information from the environment.

Effector
Something the robot controls (LED, buzzer, motor).

If/Else Statement
A decision-making structure in code.

Prototype
A simple, early version of a project.

Wrap Up

Ask
What was your favorite skill from Phase II
What felt easier today than when we started
What are you excited to learn in Phase III

Reinforce that every student is now a capable young engineer.

Exit Ticket

One
Name one sensor you used today

Two
Name one way your robot reacts to what it senses

Quiz

Since this is the conclusion lesson, quiz is optional. If used, keep it simple and reflective.

1. Multiple Choice
Robots must
A. Sense
B. Effect
C. Act
D. All of the above

2. Short Answer
What is one thing you can now do with code

3. Multiple Choice
An effector is something that
A. Takes in information
B. Responds or performs an action
C. Stores data

4. Short Answer
Describe your mini robot idea

Teacher Reflection

Did students feel confident in their Phase II skills
Was the challenge creative and fun
Did any students need extra support connecting sensors and actions
How can we build on these results in Phase III