Lesson 15
The Big Event
Students learn what events are and why they are useful in programs. They will learn to use the start on green flag events and end blocks in ScratchJr. Students will also become familiar with how to program more than one character using the green flag. This allows parallelism, or multiple subprograms executing at the same time.
Agenda
Agenda
- Ask: What do you remember about one of the ScratchJr programming blocks you used last class?
- Unplugged Mini-Lesson: ScratchJr Simon Says Part 1: Single Moves (optional)
- ScratchJr Mini-Lesson: using the green flag to trigger parallel programs to run at the same time
- Independent Work Time: Parallel Programs
- Reflection & Close-Out:
- What is one success you had while programming in ScratchJr today?
- What were you able to make your cat (or other character) do today?
Materials
Materials
- Tablets: 1-2 per pair of students
- ScratchJr Simon Says game (optional)
Vocabulary
Vocabulary
- event: an action that causes something to happen
- program: a set of instructions written in a language that a computer understands
Additional Resources
Additional Resources
- The Big Event - optional unplugged activity about events from Code.org
- Start on Green Flag and End Block Cards
- Technology Brain Break: choose a video from this list!
Standards
Standards
- CA CSS: K-2.CS.1 Select and operate computing devices that perform a variety of tasks accurately and quickly based on user needs and preferences.
- CA CSS: K-2.CS.2 Explain the functions of common hardware and software components of computing systems.
- CA CSS: K-2.AP.12 Create programs with sequences of commands and simple loops to express ideas or address a problem.