# Mingo County Shewey Science Academy: NXT Training - PowerPoint PPT Presentation

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Mingo County Shewey Science Academy: NXT Training. First Lego League. Highly differentiated Hands-On Student-led Cross-curricular Collaborative. First Lego League Core Values:. We are a team. We do the work to find solutions with guidance from our coaches and mentors.

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Mingo County Shewey Science Academy: NXT Training

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## Mingo County Shewey Science Academy: NXT Training

### First Lego League

• Highly differentiated

• Hands-On

• Student-led

• Cross-curricular

• Collaborative

### First Lego League Core Values:

• We are a team.

• We do the work to find solutions with guidance from our coaches and mentors.

• We know our coaches and mentors don't have all the answers; we learn together.

• We honor the spirit of friendly competition.

• What we discover is more important than what we win.

• We share our experiences with others.

• We display gracious professionalism and cooperation in everything we do.

• We have FUN!

### First Lego League Challenge: Green City

www.waynecountynews.com

### Ice Breaker

• Draw a blueprint of a robot that performs a task you would prefer not to do.

Structure Function

Determines

### What is a Robot?

• Sense–takes in information about its environment

• Plan –uses that information to make a decision

• Act –has moving parts to carry out commands

### Output Ports (A, B, C)These ports send information out of the NXT

USB Port –Connects to the computer

### Sensors are plugged into the Input Ports

Touch

Light

Sound

Ultrasonic

The NXT Navigation Map allows you to view the console menu options.

NXT BUTTON CONTROLS

Enter/Select Button

NXT BUTTON CONTROLS

You are able to scroll left to right thru all menu options.

### NXT BUTTON CONTROLS

You are able to scroll backwards thru all menu options.

Name that Part!

Word Bank:

GearBeltsAngled Beams

SensorsPulley WheelsMotor

BushingsTechnic Beams

AxlePlates

Wheels Bricks

PegsStudded Beams

Functions

Bricks, Beams, & Plates: Provide stability and support

Gears, Belts, Axles, & Pulleys: Transmit mechanical energy

Bushings: Hold structural parts in place; can also be used as part of a pulley system

Pegs and Joints: Join structural parts together

Sensors: Detect changes in the environment

NXT (Brain): Contains the source of energy for the bot (batteries)

Now it’s time to build your bot!

### If your wheel makes one rotation, how far will it travel?

Distance Traveled = Circumference * Rotations

r

d

### Circle Math for Movement

• What is a radius of a circle?

• 2. What is a diameter of a circle?

• 3. What is the formula for the circumference of a circle?

The distance from the center to the outside of a circle. Measure to the nearest tenth of a centimeter.

Measure to the nearest

tenth of a centimeter

The distance, through a circle’s center, from one edge to another.

Measure to the nearest

tenth of a centimeter

Circumference = diameter * π

Π or Pi = 3.14

### Circle Math In ActionIf your wheel completes 2 rotations, what distance will it travel?

Round up

2.2 cm

3.14

6.908

6.91

Measurement of the rim

Constant

13.82 cm

6.91

2

Resource: Robin Shoop, Carnegie Mellon University

Circle Math In Action

If your wheel’s circumference is 6.91 and it completes 2 rotations, then it should travel 13.82 cm.Climbing the Learning LadderWhat are some variables which would prevent the Robot from traveling exactly 13.82 cm?

Resource: Robin Shoop, Carnegie Mellon University

Welcome to the programming environment. NXT G is a icon based user friendly drag and drop program.

If you have multiple NXT robots in your classroom, a best practice is to have students personalize their robot by giving it a name that is saved in the robot’s brain.

### Math Applications

• Metric conversions

• Setting up equations

• Perimeter

• Circumference

• Collecting and representing data

• Estimation

• Problem Solving: making predictions & experimenting

### 4/20/13

• Objectives-

• Use the scientific process to solve the Green City Challenges.

• Complete two green city challenges:

• 1 that requires a “push” from the robot

• 1 that requires your robot to “lift” something

### Best Practices:

• Assigning roles: i.e.- mechanical engineer, computer engineer, mathematician

• Following the scientific process

• Data Logging

• Organization: Challenge kids to keep kits organized!

• Lego League Core Values

• Awards

### Scientific Process:

• Know the challenge

• Predict what your robot will do to solve the challenge

• Experiment

• Evaluate results

• Make changes due to inconsistencies in the prediction

• Experiment

• Repeat

### Data Logging Example

Challenge: Move in a square

BehaviorProgramming

Robot will move forward 8 in.

Robot will execute a point turn by turning off left wheel and allowing the right wheel to move

Robot will repeat steps above 3 more times.

Forward move block, 2 rotations

Forward move block with C motor turned off, 1 rotation

Use Loop Function

### First Lego League Core Values:

• We are a team.

• We do the work to find solutions with guidance from our coaches and mentors.

• We know our coaches and mentors don't have all the answers; we learn together.

• We honor the spirit of friendly competition.

• What we discover is more important than what we win.

• We share our experiences with others.

• We display gracious professionalism and cooperation in everything we do.

• We have FUN!

### Green City Challenge Awards:

• Best Design of Robot

• Most Difficult Challenge

• Fastest Mission Completion

• Most Effective Mission (highest point value)

• Most Creative

• Most Gracious Professionals

### Trouble Shooting

• Emphasize that the robots must begin on the designated tire outlines

• Charge robots each day after students leave

• Programming Issues:

• Ensure the arm or wheel is connected to the correct port