Nxt g online professional development classes will begin at 1 00pm edt
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NXT-G Online Professional Development Classes will begin at 1:00pm EDT. Welcome. Forum post homework Last week: Preconceptions Made claims Have NOT made changes This week: Movement and Math. NVT Moving Straight. First NXT Video Trainer (NVT) lesson Demo: How to get around in the NVT

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Nxt g online professional development classes will begin at 1 00pm edt

NXT-GOnline Professional DevelopmentClasses will begin at 1:00pm EDT


Welcome

Welcome

  • Forum post homework

  • Last week: Preconceptions

    • Made claims

    • Have NOT made changes

  • This week: Movement and Math


Nvt moving straight

NVT Moving Straight

  • First NXT Video Trainer (NVT) lesson

  • Demo: How to get around in the NVT

  • Lab: NVT Moving Straight 1-9

    • Answer the questions at the end of each step to yourself

    • Check your answers so you know whether you got it or not

    • If you finish early, answer the following question:

      • What is the relationship between Rotations and Degrees in the Duration configuration panel?

      • How does Seconds fit in with Rotations and Degrees?


Student paced instruction

Student-Paced Instruction

  • Everyone learns different things at different paces

  • Everyone MUST move at a different pace

    • Going too fast results in failure and frustration

    • Going too slow results in loss of attention (i.e. future failure)

  • The NVT software is a teaching aid

    • One instructor can’t teach at 20 different paces simultaneously

    • One instructor plus 20 computers can


Relative adjustment

Relative Adjustment

  • Lab: NVT Moving Forward 10

    • Do the Step 10 Challenge at the end of the video

    • If you finish early, create the following:

      • A digital document (Word, PPT, Wiki, anything…) with step-by-step instructions on how to make your robot go a certain distance.

  • Discuss: Relative Adjustment

    • How would you describe the methodology used so far?

      • (fill in)

    • Do you have any suspicions about better ways?


Multiple adjustment

Multiple Adjustment

  • Lab: NVT Moving Forward 11

    • Do the Step 11 Challenge at the end of the video

    • If you finish early, create the following:

      • Update and/or elaborate on your method for making the robot go a certain distance.

  • Discuss: Multiple Adjustment

    • How would you describe this new method?

      • (fill in)

    • What does this method buy us compared to the previous one?


Close shave challenge

Close Shave Challenge

  • Challenges and Projects

  • Complete the Close Shave Challenge

    • NVT Moving Straight 14

  • MODIFICATION TO THE CHALLENGE

    • In addition to 1, 2, or 3 tiles, also prepare for 2.5 tiles

  • Present your solution

    • Prepare a 1-minute presentation (visuals OK via screen sharing) describing your method for finding the correct Durations

    • Present your method even if you think your solution is the same as someone else’s


The m in stem

The M in STEM

  • How did you solve the math problem?

    • Breakout session

    • 2 groups

  • Describe your way even if you think it’s the same as somebody else’s that already went

    • (fill in, cont’d next page)


The m in stem1

The M in STEM

  • Your methods:

    • Describe your way even if you think it’s the same as somebody else’s that already went

    • (fill in)


The m in stem2

The M in STEM

  • How did you solve the math problem?

  • Some common methods:

    • Scale Factor (“Scaling” multiples of a known quantity)

    • Rate: Unit Ratio (# of X in a single Y, times the number of Y’s)

      • “Rate” relationship

      • Find #degrees/1cm, then multiply that rate by the total

      • What about #degrees per floor-line?

    • Rate: Raw Ratio (# of X per # of Y, times the number of Y’s)

      • Find 360degrees/20.4cm, then multiply that rate by the total

    • Direct Proportion (Traditional “ratio” equation)

      • 20.4 cm = 50 cm360 deg X deg

      • Solved mechanically using cross-multiplication

      • Solved algebraically as a Linear Equation of One Variable


The m in stem3

Answer

Problem

The M in STEM

  • Did you all solve the same problem?

  • Did you all get the same answer?

  • Did you all use the same method?

  • Did it matter?


The m in stem4

The M in STEM

  • Did we do something demonstrably useful?

  • Let’s find out

    • Go to http://standards.nctm.org/document/chapter6/index.htm

    • Click down the standards categories on the left-hand side

    • If you find something that matches what we did, write it down

  • Matches?

    • (fill in)


The m in stem5

The M in STEM

  • How did you solve the math problem?

  • Many STEM teachers will not be teaching in Math class, yet Math is clearly what they are teaching

    • Make the math explicit; don’t waste the opportunity!

    • Embrace multiple methods of solving the same problem; students need more tools at their disposal, not conflicting information about which ones are “better” than others (none are, use what works!)


What can you teach with a robot

What can you teach with a robot?

  • Changes and updates to the Living Document


Abstraction bridges

Abstraction Bridges

  • Redux: What good is Robot Math?

  • Refining the math skills

    • Generalize understanding (apply to other numbers and contexts)

    • Practice

  • Compare these problems:

    • A robot moves 3 meters in 2 turns of its wheel. How far does it go in 6 turns of the wheel?

    • You can get 3 T-shirts for 2 dollars at the mall. How many can you get for 6 dollars?


Homework

Homework

  • Create an Abstraction Bridge problem-pair

    • One robot problem and a non-robot problem targeting the same math concept

    • Post your problem-pair to the Forum in the HW2 area

  • Complete NVT Turning

    • NXT Video Trainer > Behaviors > Turning

    • Build the Labyrinth with removable tape on a floor

    • Take pictures if you can!

    • Submit your completed .RBT program through the forum using the “Upload Attachment” box below the message area

      • The program files end in .RBT and live in:C:\Documents and Settings\<username>\My Documents\LEGO Creations\MINDSTORMS Projects\Profiles\Default

  • Build Touch+Light and Ultrasonic Attachments


Closing thoughts

Closing Thoughts

  • Class activity: Moving Straight Lab

    • Teacher concept: Student-paced Instruction

  • Class activity: Proportional Movement

    • Teacher concept: The M in STEM

    • Teacher concept: Abstraction Bridges


Footnote soft modding

Footnote: Soft Modding

  • MODIFICATION TO THE CHALLENGE

    • In addition to 1, 2, or 3 tiles, also prepare for 2.5 tiles

  • “Soft modding”

    • Changing the rules of the game without changing the rules of the game

    • Adapting material to meet your educational needs

    • Everything is fair game

    • Calvinball with a Purpose


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