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शिक्षाby Grow10x
A four-joint robotic arm style build, as students make in Class 10
Class 10 · Engineering

Control & evaluate.Four-Joint Robotic Arm

Multi-joint control, vision and language model evaluation, and command safety. Showcase build: a supervised, vision-guided robotic arm with an independent stop path.

See all 16 projectsPlan Class 10
  • 16 projects8 robotics, 4 AI, 4 integrated
  • 20 to 80Sessions by plan
  • Python + ArduinoMain language
  • Supervised linkAI to hardware
Class 10 at a glance

What students do, and what they prove.

Showcase build10

Four-Joint Robotic Arm

A supervised, vision-guided robotic arm with an independent stop path.

Learning check. Run a supervised arm task, measure repeatability and document how AI failures are handled.

Individual check. Every learner, on their own: “Explain an interlock.”

Entry task

Write a function, read a CSV, test a classifier and calibrate one servo.

Robotics core

Multiple servos, joint limits, joystick modes, repeatability, interlocks and bounded commands.

AI layer

Computer vision, model evaluation, error trade-offs, simple language models and knowing when to abstain.

Code & tools

Python with structured Arduino C/C++; optional JavaScript interface. Arduino IDE, Python + scikit-learn, Local model viewer, HTML/CSS (optional).

Cross-subject link

Angles, coordinates, measurement error and confusion matrices.

Scaffolding

Start with a one-joint simulation. Physical arm work follows a mechanical and power sign-off.

How AI meets hardware here

AI runs on the laptop and sends only validated position names, never free-form commands.

Class 10 project sequence

Sixteen projects, four blocks of twenty sessions.

Each block follows the same pattern: two builds, one AI project, then one integrated project. Open any project to see its five sessions.

  • RRobotics
  • AAI
  • IIntegrated
Block 1Sessions 01-20In every plan, from Discovery (3 months)

  1. 01
    Ask & understand · Week 1
    Power budget and joint limits
  2. 02
    Build & design · Week 1
    Connect one unloaded servo safely
  3. 03
    Implement · Week 2
    Use functions for bounded positions
  4. 04
    Test & improve · Week 2
    Test startup, stops and repeated positions
  5. 05
    Explain & reflect · Week 3
    Write a safe setup checklist
Materials

UNO, one servo, external supply, pointer, protractor

Minimum test

Five safe positions; no stall or brownout.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 06
    Ask & understand · Week 3
    Analog input and dead zones
  2. 07
    Build & design · Week 4
    Map joystick axes to safe angles
  3. 08
    Implement · Week 4
    Control one/two joints with a mode button
  4. 09
    Test & improve · Week 5
    Test disconnected and extreme inputs
  5. 10
    Explain & reflect · Week 5
    Explain the control mapping
Materials

UNO, joystick add-on, one/two servos, approved supply

Minimum test

Extreme inputs and five repeated positions; never exceed calibrated bounds.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 11
    Ask & understand · Week 6
    Choose two object states and unknown
  2. 12
    Build & design · Week 6
    Create a balanced non-personal image set
  3. 13
    Implement · Week 7
    Train a local/browser classifier
  4. 14
    Test & improve · Week 7
    Evaluate background and orientation changes
  5. 15
    Explain & reflect · Week 8
    Document false accepts and false rejects
Materials

Computer, objects, Teachable Machine or local scaffold

Minimum test

Twenty held-out objects/images across two conditions.

AI project

A model, an evaluation study or an AI-checking workflow.

Open the project page

  1. 16
    Ask & understand · Week 8
    Translate model labels to named safe poses
  2. 17
    Build & design · Week 9
    Define human approval and neutral behaviour
  3. 18
    Implement · Week 9
    Test label mapping on LEDs or one joint
  4. 19
    Test & improve · Week 10
    Add a reviewed serial link only after validation
  5. 20
    Explain & reflect · Week 10
    Demonstrate low-score and link-loss cases
Materials

P01/P03, computer, optional reviewed USB bridge

Minimum test

Twelve messages including unknown, low-score and stale cases.

Supervised link

A laptop model sends named commands only after bench tests, with a simulator as fallback.

Open the project page
Block 2Sessions 21-40From the Builder plan (6 months)

  1. 21
    Ask & understand · Week 11
    Gripper geometry and pinch zones
  2. 22
    Build & design · Week 11
    Choose a lightweight soft object
  3. 23
    Implement · Week 12
    Program bounded open/close positions
  4. 24
    Test & improve · Week 12
    Test gentle handling and repeated release
  5. 25
    Explain & reflect · Week 13
    Record object-size limits
Materials

Gripper/frame add-on, suitable servo, external supply

Minimum test

Five pick/release trials; hands outside the pinch area.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 26
    Ask & understand · Week 13
    Joint naming and mechanical order
  2. 27
    Build & design · Week 14
    Assemble the arm with power disconnected
  3. 28
    Implement · Week 14
    Calibrate each joint individually
  4. 29
    Test & improve · Week 15
    Test sequences without payload
  5. 30
    Explain & reflect · Week 15
    Publish a joint/pin map
Materials

Arm frame, four suitable servos total, controls, rated supply

Minimum test

Each joint tested separately; no arm motion before signed inspection.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 31
    Ask & understand · Week 16
    Confusion matrix and class balance
  2. 32
    Build & design · Week 16
    Read actual/predicted labels
  3. 33
    Implement · Week 17
    Calculate per-class error counts
  4. 34
    Test & improve · Week 17
    Compare thresholds and abstention rate
  5. 35
    Explain & reflect · Week 18
    Explain the cost of different mistakes
Materials

Local Python, P03 prediction CSV

Minimum test

Check counts by hand; use a fixed held-out set.

AI project

A model, an evaluation study or an AI-checking workflow.

Open the project page

  1. 36
    Ask & understand · Week 18
    Define two safe bins and a neutral state
  2. 37
    Build & design · Week 19
    Map classified objects to named poses
  3. 38
    Implement · Week 19
    Require approval before each sequence
  4. 39
    Test & improve · Week 20
    Test unknown objects without moving the arm
  5. 40
    Explain & reflect · Week 20
    Record success, overrides and failures
Materials

P06 arm, P03 model, reviewed bridge; manual fallback

Minimum test

Ten soft-object trials; low score leads to no motion.

Supervised link

A laptop model sends named commands only after bench tests, with a simulator as fallback.

Open the project page
Block 3Sessions 41-60Innovation plan (12 months)

  1. 41
    Ask & understand · Week 21
    Flex sensing versus machine learning
  2. 42
    Build & design · Week 21
    Build a safe analog divider
  3. 43
    Implement · Week 22
    Map input to one bounded joint
  4. 44
    Test & improve · Week 22
    Test extremes and loose connections
  5. 45
    Explain & reflect · Week 23
    Explain why analog gesture mapping is a rule
Materials

Flex sensor add-on, divider resistor, servo rig

Minimum test

Five bends and disconnected input; no physical strain on the sensor.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 46
    Ask & understand · Week 23
    Independent obstacle interlock
  2. 47
    Build & design · Week 24
    Add distance or IR input
  3. 48
    Implement · Week 24
    Prevent movement in an unsafe model zone
  4. 49
    Test & improve · Week 25
    Test override policy and sensor failure
  5. 50
    Explain & reflect · Week 25
    Explain separation of AI and safety logic
Materials

Arm, HC-SR04/IR, stop control, approved power

Minimum test

Five blocked/unblocked trials and invalid-sensor test.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 51
    Ask & understand · Week 26
    Intent labels and non-personal text
  2. 52
    Build & design · Week 26
    Train on a small classroom command set
  3. 53
    Implement · Week 27
    Test paraphrases and unknowns
  4. 54
    Test & improve · Week 27
    Map labels to permitted named actions only
  5. 55
    Explain & reflect · Week 28
    Document when to ask a person
Materials

Local Python, synthetic command examples

Minimum test

Twenty held-out phrases with at least five unknowns.

AI project

A model, an evaluation study or an AI-checking workflow.

Open the project page

  1. 56
    Ask & understand · Week 28
    Define a command schema
  2. 57
    Build & design · Week 29
    Validate allowed pose names and required approval
  3. 58
    Implement · Week 29
    Show a preview before movement
  4. 59
    Test & improve · Week 30
    Test bad data, injection-like text and link loss
  5. 60
    Explain & reflect · Week 30
    Export an auditable command log
Materials

P11 model, local console, arm or LED simulator

Minimum test

Fifteen cases including malformed commands; invalid input produces STOP.

Supervised link

A laptop model sends named commands only after bench tests, with a simulator as fallback.

Open the project page
Block 4Sessions 61-80Innovation plan (12 months)

  1. 61
    Ask & understand · Week 31
    Arrays of named poses
  2. 62
    Build & design · Week 31
    Store a short bounded movement sequence
  3. 63
    Implement · Week 32
    Replay with non-blocking state logic
  4. 64
    Test & improve · Week 32
    Test cancel and restart between poses
  5. 65
    Explain & reflect · Week 33
    Measure repeated placement error
Materials

Four-joint arm, buttons, measured work area

Minimum test

Five replays; emergency power isolation remains accessible.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 66
    Ask & understand · Week 33
    Design mode priority
  2. 67
    Build & design · Week 34
    Integrate joystick, replay and sensor interlock
  3. 68
    Implement · Week 34
    Program safe mode transitions
  4. 69
    Test & improve · Week 35
    Test reset and lost-input behaviour
  5. 70
    Explain & reflect · Week 35
    Write a one-page operator guide
Materials

Arm, joystick, buttons, sensors, approved power

Minimum test

Eight transitions, reset and stop tests.

Hands-on build

A physical circuit, sensor or mechanism, built and tested on the bench.

Open the project page

  1. 71
    Ask & understand · Week 36
    Specify a repeatable model-report workflow
  2. 72
    Build & design · Week 36
    Package instructions, examples and validation tests
  3. 73
    Implement · Week 37
    Run on two model-result files
  4. 74
    Test & improve · Week 37
    Review dependencies and permissions
  5. 75
    Explain & reflect · Week 38
    Document a reproducible version
Materials

Local files; teacher-managed Skills demo optional

Minimum test

Two valid files and two malformed inputs; no external write access.

AI project

A model, an evaluation study or an AI-checking workflow.

Open the project page

  1. 76
    Ask & understand · Week 38
    Define one constrained sorting task
  2. 77
    Build & design · Week 39
    Combine perception, approval, poses and interlock
  3. 78
    Implement · Week 39
    Run fixed evaluation trials
  4. 79
    Test & improve · Week 40
    Investigate failures and model/robot disagreement
  5. 80
    Explain & reflect · Week 40
    Present model card, circuit map and limitations
Materials

Expanded arm kit, computer, object model, reviewed bridge

Minimum test

Ten mission trials plus stop, uncertainty and disconnect tests.

Supervised link

A laptop model sends named commands only after bench tests, with a simulator as fallback.

Open the project page
How thinking grows

Class 10 adds one more layer of judgement.

Hardware thinking

Multi-joint motion and command validation

AI & data thinking

Vision and language evaluation, abstention

Programming depth

Python plus structured control code

Reusable skill

Versioned instructions, examples and validation scripts.

Tool and permission habit

Sandboxed tools, allow-listed actions, human approval.

Evidence

A command and rejection test log.

Arduino IDEPython + scikit-learnLocal model viewerHTML/CSS (optional)
Two teachers guiding uniformed students as they build a robot car in a classroomFor school leaders

Bring Class 10
to your school.

Start with the four Discovery projects for Class 10 (20 sessions), review the evidence together, then extend to Builder or Innovation.

  • Prospectus and class-wise plan
  • Kit and readiness check
  • Pilot one class first
  • Evidence at every milestone
School enquiry

Let's plan your pilot.

Share a few details and we will send the right plan for your classes.

Classes you are considering

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