Probability and the Counting Principle
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can calculate the probability of a specific outcome by using a sample space and the Fundamental Counting Principle.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
A restaurant offers 5 different appetizers, 8 different entrees, and 4 different desserts. If a customer wants to order one item from each category, how many different meal combinations are possible?
A password consists of 6 characters. The first character must be a letter (A-Z), and the remaining 5 characters can be either a letter (A-Z) or a digit (0-9). How many different passwords can be created?
Part 3 of 3
Exit ticket
Quick comprehension check
“A sandwich shop offers 3 types of bread, 4 types of meat, and 2 types of cheese. If a customer chooses one of each, how many different sandwich combinations are possible? If each combination is equally likely, what is the probability that a customer randomly selects a sandwich with rye bread, turkey, and swiss cheese? A code consists of 2 letters followed by 1 digit. The letters can be any letter of the alphabet, and the digit can be any number from 0-9. How many different codes are possible? If all codes are equally likely, what is the probability that a randomly generated code is "AB7"?”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson
