|
Mrs. Hulstrom |
Typing.com
(Join Class through Google Classroom)
Tynker Online Support Video Help
Code HS
Karel the Dog class code: 1251
301 Shoot Projectiles (11) ***
Introduction
In this lesson, students will learn how to use repetition and screen edge detection to program projectiles while creating a project of a dragon shooting fireballs! Coding concepts from this lesson include: Repeat Until and Screen Edges.New Code Blocks
: Make the Actor repeat this loop until a true or false [boolean value] determines when the block should stop repeating the code inside it.
: This is an addition operator that returns the sum of the two parameters.
: This is a subtraction operator that returns the subtraction of the two parameters.
: This is a comparison operator that returns true if the first value is less than the second value, and returns false otherwise.
: This is a math operator that returns a random number between the two parameters.
Vocabulary
- Projectile: An object that is thrown, hurled, or tossed.
Objectives
Students will...- Use code blocks to program Actors to detect screen boundaries and move to different screen locations
- Use code blocks to solve a puzzle module
- Create a game where a dragon shoots fireballs
Notes:
What is a Projectile?- Today’s coding adventure involves a dragon shooting fireball projectiles!
- A projectile is an object that is thrown, hurled, or tossed.
- Can you give examples of projectiles. (Example: A cannonball launching out of a cannon)
1. Concepts (Video)
- Dan, the dragon rider, introduces two coding concepts:
- Repeat Until- Dan explains how the given script will keep repeating until a condition is met.
- Screen Edges- Students will interact with different scripts and observe how each script affects the Actor.
- In this DIY (do-it-yourself) project, students will follow step-by-step directions to program a dragon to breathe fireballs that fly forward.
- Point out to students that if they put the operator values in the wrong order, then the program will not function as intended.
- In this DIY project, students will add to their game by adding an enemy plane to shoot fireballs at.
- How to Play: Use arrow keys (web) or tilt the screen (mobile) to move the dragon. Use the spacebar (web) or tap the screen (mobile) to shoot fireballs.
- Remind students that they need to put the operator values in the correct order. Otherwise, their program will not function as intended.
- To solve this puzzle module, students will need to program a fireball to shoot from the dragon when the spacebar is pressed (web) or the screen is tapped (mobile). Students are provided a sample of what their end result should look like.
- Give a hint: Ask students…
- What should be the first code block in the sequence? (Answer: “when I receive game start”)
- What do we need the “repeat until” loop to do? (Answer: We need to program the “repeat until” loop to move the dragon 10 steps and pause until the dragon’s x-position is greater than the right edge of the screen.)
- In this DIY project, students will add new enemies for their dragon to shoot fireballs at. Note: Students will need to draw their own enemy Actors or add enemy Actors from the Media Library.
- Check that students are customizing the movement pattern of each enemy.
Conclusion
In this lesson we learned how to set and change global variables to create powerups and invincibility powerups.
U.S. Standards
- K-12 CTSA Computer Science Standards (Revised 2017)
Computer Science Teachers Association:- 1B-AP-10
- 1B-AP-11
- 1B-AP-12
- 1B-AP-15
- 2-AP-12
- 2-AP-13
- 2-AP-15
- 2-AP-16
- 2-AP-17
- CCSS-ELA: RF.5.4.A, 6-8.RST.3, 6-8.RST.4, 6-8.RST.7
- CS CA: 3-5.AP.10, 3-5.AP.12, 3-5.AP.13, 3-5.AP.14, 3-5.AP.17, 6-8.AP.12, 6-8.AP.13, 6-8.AP.16, 6-8.AP.17
- ISTE: 1.c, 1.d, 4.d, 5.c, 5.d, 6.b
***All lesson information is from https://www.tynker.com/
12551 Holly Street
Thornton, Colorado 80241
720-972-5040