pxt-calliope/docs/courses/csintro/booleans.md

# Booleans

![micro:bit Combo Box](/static/courses/csintro/booleans/cover.jpeg)

This lesson introduces the use of the boolean data type to control the flow of a program, keep track of state, and to include or exclude certain conditions.

## Lesson objectives 
Students will...
* Understand what booleans and boolean operators are, and why and when to use them in a program.
* Learn how to create a boolean, set the boolean to an initial value, and change the value of the boolean within a micro:bit program.
* Learn how to use the random true or false block. 
* Apply the above knowledge and skills to create a unique program that uses booleans and boolean operators as an integral part of the program.
 
## Lesson structure
* Introduction: Booleans in daily life
* Unplugged Activity: Two Heads are Better Than One
* micro:bit Activity: Double Coin Flipper
* Project: Boolean
* Assessment: Rubric
* Standards: Listed

## Lesson plan

1. [**Overview**: Booleans](/courses/csintro/booleans/overview)
2. [**Unplugged**: Two heads are better than one](/courses/csintro/booleans/unplugged)
3. [**Activity**: Double coin flipper](/courses/csintro/booleans/activity)
4. [**Project**: Boolean](/courses/csintro/booleans/project)

## Related standards

[Targeted CSTA standards](/courses/csintro/booleans/standards)