Middle School course

Programming 301

  • GRADES 7-8
  • BEGINNER
  • WEB
  • 17 LESSONS
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Slide: 1 of

Answer Key

Module 2: Add Projectiles

Open Sample Project

Module 3: Program the Enemy

Open Sample Project

Module 4: Shoot the Planes

Module 5: Make New Enemies

Open Sample Project

Module 6: Quiz

1. How can I check if an Actor is touching the top edge of the screen?

  • {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"any"}]}],"containers":[null]}
  • {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"edge"}]}],"containers":[null]}
  • {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"top edge"}]}],"containers":[null]}
  • {"func":"blockControlIf","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"self"}]}],"containers":[null]}

2. How can I position the dragon to start off-screen on the left side of the stage?

  • {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpSubtract","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"number","value":"200"}]},{"type":"number","value":"0"}]}}
  • {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenRight"},{"type":"number","value":"200"}]},{"type":"number","value":"0"}]}}
  • {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"number","value":"0"},{"type":"wrapper","func":"valueSensingScreenRight"}]}}
  • {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"number","value":"0"},{"type":"wrapper","func":"valueSensingScreenLeft"}]}}

3. What would this code block do to the dragon Actor? {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]},{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenTop"},{"type":"number","value":"50"}]}],"next":{"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"bottom edge"}]}],"containers":[{"func":"blockMotionChangeYBy","values":[{"type":"number","value":"-10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".1"}]}}]}}}

  • It will move the dragon from the top of the screen to the bottom. Its x position will be different each time the project is played.
  • It will move the dragon from the bottom of the screen to the top. Its x position will be the same each time.
  • It will move the dragon from the right of the screen to the left. Its y position will be be different each time the project is played.
  • It will move the dragon from the top of the screen to the bottom. Its x position will be the same each time.

4. How can you make an Actor appear in a random position on the Stage each time you click on him?

  • {"func":"registerSpriteTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]},{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"wrapper","func":"valueSensingScreenTop"}]}]}}
  • {"func":"registerSpriteTrigger","next":{"func":"blockMotionGoTowards","values":[{"type":"string","value":"any"}]}}
  • {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]},{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"wrapper","func":"valueSensingScreenTop"}]}]}}
  • {"func":"registerFlagTrigger","next":{"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"wrapper","func":"valueSensingScreenTop"}]},{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]}]}}

5. Which of these code blocks are NOT a valid condition that can be used in the Repeat Until block? {"func":"blockControlRepeatUntil","values":[{"type":"boolean","value":"false"}],"containers":[null]}

  • {"type":"wrapper","func":"valueMotionXPosition"}
  • {"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"top edge"}]}
  • {"type":"wrapper","func":"valueOpEqual","values":[{"type":"wrapper","func":"valueLooksCostumeNum"},{"type":"string","value":"2"}]}
  • {"type":"wrapper","func":"valueOpEqual","values":[{"type":"wrapper","func":"valueVar","name":"invincibility"},{"type":"string","value":"0"}]}

6. Which of these code blocks will move the fireball towards the right until it hits an enemy plane?

  • {"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"WWI Plane"}]}],"containers":[{"func":"blockMotionChangeXBy","values":[{"type":"number","value":"10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".1"}]}}]}
  • {"func":"registerTrigger","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"any"}]}],"next":{"func":"blockLooksHide"}}
  • {"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"WWI Plane"}]}],"containers":[{"func":"blockMotionGoTowards","values":[{"type":"string","value":"WWI Plane"}],"next":{"func":"blockLooksHide"}}]}
  • {"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"Pink_Flying01"}]}],"containers":[{"func":"blockMotionChangeYBy","values":[{"type":"number","value":"10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".1"}]}}]}

7. What does this code block do to an enemy plane? {"func":"registerTrigger","values":[{"type":"wrapper","func":"valueSensingTouchingSprite","values":[{"type":"string","value":"fireball"}]}],"next":{"func":"blockControlRepeat","values":[{"type":"number","value":"5"}],"containers":[{"func":"blockLooksNextCostume","next":{"func":"blockControlWait","values":[{"type":"number","value":".1"}]}}]}}

  • It animates the plane when it touches the fireball
  • It moves the plane when it touches the fireball
  • It animates the plane when it touches any actor
  • It moves the plane at the start of the program

8. Which of these code blocks positions the enemy plane completely off-screen to the right of the Stage?

  • {"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenRight"},{"type":"number","value":"100"}]},{"type":"number","value":"0"}]}
  • {"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpSubtract","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"number","value":"100"}]},{"type":"number","value":"0"}]}
  • {"func":"blockMotionGoTo","values":[{"type":"number","value":"0"},{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenTop"},{"type":"number","value":"100"}]}]}
  • {"func":"blockMotionGoTo","values":[{"type":"number","value":"0"},{"type":"wrapper","func":"valueOpSubtract","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"number","value":"100"}]}]}

9. Which two code blocks have the same effect on an Actor? (Choose 2.)

  • {"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"wrapper","func":"valueSensingScreenTop"}]},{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]}]}
  • {"func":"blockMotionSetX","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"wrapper","func":"valueSensingScreenTop"}]}],"next":{"func":"blockMotionSetY","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]}]}}
  • {"func":"blockMotionSetX","values":[{"type":"wrapper","func":"valueSensingScreenRight"}],"next":{"func":"blockMotionSetY","values":[{"type":"wrapper","func":"valueSensingScreenTop"}]}}
  • {"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenBottom"}]}

10. Which of these code blocks will move the dragon to the right until goes off-screen?

  • {"func":"blockMotionPointDirection","values":[{"type":"string","value":"90"}],"next":{"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueOpGreater","values":[{"type":"wrapper","func":"valueMotionXPosition"},{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenRight"},{"type":"number","value":"100"}]}]}],"containers":[{"func":"blockMotionMove","values":[{"type":"number","value":"10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".5"}]}}]}}
  • {"func":"blockMotionPointDirection","values":[{"type":"string","value":"-90"}],"next":{"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueOpGreater","values":[{"type":"wrapper","func":"valueMotionXPosition"},{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenRight"},{"type":"number","value":"100"}]}]}],"containers":[{"func":"blockMotionMove","values":[{"type":"number","value":"10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".5"}]}}]}}
  • {"func":"blockMotionPointDirection","values":[{"type":"string","value":"-90"}],"next":{"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueOpLess","values":[{"type":"wrapper","func":"valueMotionXPosition"},{"type":"wrapper","func":"valueOpAdd","values":[{"type":"wrapper","func":"valueSensingScreenRight"},{"type":"number","value":"100"}]}]}],"containers":[{"func":"blockMotionMove","values":[{"type":"number","value":"10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".5"}]}}]}}
  • {"func":"blockMotionPointDirection","values":[{"type":"string","value":"-90"}],"next":{"func":"blockControlRepeatUntil","values":[{"type":"wrapper","func":"valueOpGreater","values":[{"type":"wrapper","func":"valueMotionXPosition"},{"type":"wrapper","func":"valueOpSubtract","values":[{"type":"wrapper","func":"valueSensingScreenRight"},{"type":"number","value":"100"}]}]}],"containers":[{"func":"blockMotionMove","values":[{"type":"number","value":"10"}],"next":{"func":"blockControlWait","values":[{"type":"number","value":".5"}]}}]}}

11. True or false: The value of this block changes as screen size changes. {"type":"wrapper","func":"valueSensingScreenRight"}

  • True
  • False

12. True or false: If you set an Actor’s x position to "screen right", it will move completely off-screen. {"func":"blockMotionSetX","values":[{"type":"wrapper","func":"valueSensingScreenRight"}]}

  • True
  • False

13. True or false: After running this code block, the top half of the Actor will peek out from the bottom of the screen. {"func":"blockMotionSetY","values":[{"type":"wrapper","func":"valueSensingScreenBottom"}]}

  • True
  • False

14. True or false: If I want an Actor to appear randomly on the screen, I can use this code block. {"func":"blockMotionGoTo","values":[{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"wrapper","func":"valueSensingScreenRight"}]},{"type":"wrapper","func":"valueOpRandom","values":[{"type":"wrapper","func":"valueSensingScreenBottom"},{"type":"wrapper","func":"valueSensingScreenTop"}]}]}

  • True
  • False

15. True or false: If I want an Actor to appear off-screen to the left, I can use {"func":"blockMotionSetX","values":[{"type":"wrapper","func":"valueOpSubtract","values":[{"type":"wrapper","func":"valueSensingScreenLeft"},{"type":"number","value":"100"}]}]}. I have to subtract 100 to account for the size of the Actor.

  • True
  • False

U.S. Standards

  • CCSS-Math: 6.NS.C, MP.1, MP.2, MP.4
  • CCSS-ELA: RI.7.4, RI.8.4, 6-8.RST.3, 6-8.RST.4, 6-8.RST.7
  • CSTA: 2-AP-10, 2-AP-12, 2-AP-13, 2-AP-15, 2-AP-16, 2-AP-17
  • CS CA: 6-8.AP.12, 6-8.AP.13, 6-8.AP.15, 6-8.AP.16, 6-8.AP.17
  • ISTE: 1.c, 1.d, 4.d, 5.c, 5.d, 6.b

U.K. Standards

Key stage 3
Pupils should be taught to:
  • design, use and evaluate computational abstractions that model the state and behaviour of real-world problems and physical systems
  • understand several key algorithms that reflect computational thinking [for example, ones for sorting and searching]; use logical reasoning to compare the utility of alternative algorithms for the same problem
  • undertake creative projects that involve selecting, using, and combining multiple applications, preferably across a range of devices, to achieve challenging goals, including collecting and analysing data and meeting the needs of known users
  • create, reuse, revise and repurpose digital artefacts for a given audience, with attention to trustworthiness, design and usability
  • understand a range of ways to use technology safely, respectfully, responsibly and securely, including protecting their online identity and privacy; recognise inappropriate content, contact and conduct, and know how to report concerns
Key stage 4
All pupils must have the opportunity to study aspects of information technology and computer science at sufficient depth to allow them to progress to higher levels of study or to a professional career. Pupils should be taught to:
  • develop their capability, creativity and knowledge in computer science, digital media and information technology
  • develop and apply their analytic, problem-solving, design, and computational thinking skills
  • understand how changes in technology affect safety, including new ways to protect their online privacy and identity, and how to report a range of concerns

Lesson 11: Shoot Projectiles

Course: | Web

  • Concepts
  • Add Projectiles
  • Program the Enemy
  • Shoot the Planes
  • Make New Enemies
  • Quiz

Description

An advanced introduction to programming for middle school. Introduce programming fundamentals to your class as they build two arcade-inspired games from start to finish. The Adventure Game features a knight who has to defeat enemies to reach treasure. Students program arrow keys, fluid motion, hero and enemy behavior, and winning conditions. In Dragon Attack, they define multiple levels and lives, and program a boss enemy, while learning about variables and cloning.

Topics

  • Events
  • Keyboard and mouse interaction
  • Conditional loops
  • Nested loops
  • Sending and receiving messages
  • Fluid motion
  • Parallax scrolling
  • Local and global variables
  • Functions
  • Object cloning
1/7

Build complex games rapidly using visual programming

What Students Learn

  • Build complex multi-level games
  • Use variables to keep score
  • Use cloning to create actors programmatically
  • Build algorithms using complex conditional logic
  • Understand parallelism with multiple scripts
  • Program different behaviors for different actors
  • Publish projects to the Web
  • Troubleshoot and debug programs

Technical Requirements

* Online courses require a modern desktop computer, laptop computer, Chromebook, or Netbook with Internet access and a Chrome (29+), Firefox (30+), Safari (7+), or Edge (20+) browser. No downloads required.

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