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My Loopy Robotic Friends Jr.

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My Loopy Robotic Friends Jr.

Standards:

2.AP.M.1 - Break down (decompose) the steps needed to solve a problem into a precise sequence of instructions.

2.AP.C.1 - Develop programs with sequences and simple loops, to express ideas or address a problem.

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Students will be able to:

  • Identify repeated patterns in code that could be replaced with a loop.
  • Write instructions that use loops to repeat patterns.

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Warm Up

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My Loopy Robotic Friends Jr. - Warm Up

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Reflect:

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In the previous lesson, which shapes repeated lines of code?

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What lines of code did they repeat?

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My Loopy Robotic Friends Jr. - Warm Up

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Loop - The action of doing something over and over again.

Repeat - To do something again.

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Vocabulary

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My Loopy Robotic Friends Jr. - Warm Up

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Remember This?

Pick Up Cup

Put Down Cup

Step Forward

Step Backward

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My Loopy Robotic Friends Jr. - Warm Up

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Now Try This!

Pick Up Cup

Put Down Cup

Step Forward

Step Backward

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My Loopy Robotic Friends Jr. - Warm Up

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One More Time!

Pick Up Cup

Put Down Cup

Step Forward

Step Backward

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Activity

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My Loopy Robotic Friends

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My Loopy Robotic Friends Jr. - Activity

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Think - Pair - Share

Where in this program can you find a pattern of instructions that repeat uninterrupted (one arrow repeated over and over)?

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Sample Answer

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My Loopy Robotic Friends Jr. - Activity

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Where in this program can you find a pattern of instructions that repeat uninterrupted (one arrow repeated over and over)?

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My Loopy Robotic Friends Jr. - Activity

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Looping Your Robots

  • Once you are in your group, divide into partners
  • Look at Cup Stacking Ideas
  • With your partner, choose one design for your robot to do

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My Loopy Robotic Friends Jr. - Activity

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The “Program”

  • Discuss how the stack should be built, using only arrows.
  • Write down your algorithm on a piece of paper.
  • Replace any repeated actions with a loop.

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My Loopy Robotic Friends Jr. - Activity

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Running and Debugging Your Robots

  • Now it’s time to be a robot! Trade algorithms with the other partners in your group.
  • Be on the lookout for bugs. If you see one, have the robot finish the instructions as best as it can.
  • Discuss the bug with your partners and come up with a solution.
  • Keep testing the algorithm until it works!

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My Loopy Robotic Friends Jr.- Activity

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Discuss

Time to share your solution with your classmates.

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  • Did you identify any loops?
  • Are there other ways those loops could have been written? How?

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Wrap Up

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My Loopy Robotic Friends Jr. - Wrap Up

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Reflect:

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Is it easier to understand programs with loops, or programs written out longhand? Why?

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