Grade 1 CT • Learning Loops • Day Two/Three (SF)

Grade 1Computational Thinker Learning Loops

DAY TWO & THREE

Overview

Today I will learn how to create a sequence that includes a loop.

Motivation

STEP 1.

    Directions: Go to Slide 2 and select the play button to begin Loops Explained - FOOtorials Links to an external site.. As you view this video, think about what we learned yesterday about Loops.

**Note: Closed Captioning may not display when using the Firefox browser

Lesson

STEP 2.

  Directions: Go to Slide 2 and select the play button to begin 5 Minute Aquarium Timer Links to an external site.. As you view this video, think about what types of creatures you would find in an aquarium or that live in the water. 

**Note: Closed Captioning may not display when using the Firefox browser

STEP 3.

  Directions: Listen to teacher as they explain more about how Loops work in Scratch Jr.  Pay close attention to the following:

  • How to start a new project
  • Delete the cat sprite
  • Add fish sprites
  • Add an aquarium background
  • Find the loop block
  • Find the repeat forever end block

 

  Directions: Select the play button to begin the Loops in Scratch Jr. Links to an external site. video. As you view this video, think about what character you will add and what actions they will repeat.

**Note: Closed Captioning may not display when using the Firefox browser

 

Activity: Scratch Jr.

STEP 4. 

 Select a tab below to get started creating an aquarium in Scratch Jr.

  Directions: Use the Make an Aquarium How To Guide Links to an external site. to practice using the Repeat or Loop Block to create an aquarium in Scratch Jr.

Reminder: The Picture Dictionary version is on Slide 2.

 

Directions: Complete the following activity in Scratch Jr. to practice using the Repeat or Loop Block to create an aquarium.

  • Open Scratch Jr. app on your Chromebook.
    • Image of Scratch Jr. Icon
  • Create a new project.
    • Image of My Projects in Scratch Jr.
  • Select the Underwater Background.
    • Image of Background Icon in Scratch Jr.
    • Screenshot of Background options with Underwater selected in Scratch Jr.
    • Image of Blue Check Mark in Scratch Jr.
  • Press and Hold to delete the cat character. 
    • Screenshot of Cat Sprite in Delete mode with red X.
  • Then add a fish character.
    • Screenshot of Add Character Box in Scratch Jr.
    • Screenshot of Characters with the Fish Character Selected in Scratch Jr.
    • Image of Blue Check Mark in Scratch Jr.
  • Add the green flag block to your project and the repeat or loop block so that your sea creature will swim back and forth.
    • Screenshot of Scratch Jr. Underwater project.
  • Practice adding and testing code blocks. 
  • Test your code by selecting the green flag at the top of the screen.
    • Image of Green Trigger Flag in Scratch Jr.

 

Resources

  This course content is offered under a  CC Attribution Non-Commercial Share Alike Links to an external site. license. Content in this course can be considered under this license unless otherwise noted.