Lesson 2
Decision boxes
Introduction
In this ‘unplugged’ lesson, pupils further develop their understanding of selection using decision boxes and creating flowchart algorithms.
Learning objectives
- To understand how selection is represented in flowcharts
- To understand and use decision boxes
- To create flowcharts algorithms
You will need
Downloadable resources:
- Lesson plan
- Lesson slides
- Student handouts
- Blank flowchart algorithm
- Completed flowchart algorithm
- Algorithm support sheet
Other resources:
Batteries, alligator / crocodile clip leads, lightbulbs, buzzers (optional), motors (optional), kitchen foil (optional), scissors (optional), pencils (optional), coins (optional), felt cloth (optional), erasers (optional), pencil sharpeners (optional)
Quick links
Lesson plan
Introduction: Flowchart algorithms (5 minutes)
Decision boxes (10 minutes)
Electrical circuits (15 minutes)
Algorithms with decision boxes (25 minutes)
Evaluating algorithms (10 minutes)
Extension ideas
Differentiation
Opportunities for assessment