The conditional probability of an event B, in relation to event A, is the probability that event B will occur given the knowledge that an event A has already occurred.
Listen, there are VERY FEW times in your Algebra 2 classes that you get to just HAVE FUN teaching a lesson! Don't let this opportunity pass you by. I always spend more time on this lesson than I should. Why? Because it is a point in the course where you can reignite your students interest in your class.
There are so many activities you can do to help you teach this lesson and get your students truly involved I could never list them all. But here are my top 5!
Everybody Loves Candy
Split your class into groups, give them a bowl of M&M's or Skittles, give them a list of questions on finding different probabilities for drawing the right color. Watch them enjoy. If you want to make it more exciting then have them also do the activity with a blind fold on and ACTUALLY pick random candy out of the bowl.
Card Tricks
Another small group activity. Same concept but more realistic. Deal out hands of cards to each member of the group. Have them figure out what the probability of the next card will be.
Dice
Using Dice to teach conditional probability can be both good and bad. Good because you can compare it to the other types of probability that are great with dice because of the fact that you can't remove a number from dice if it is rolled. Bad because you can't remove a number from the dice when it is rolled. Replacement is not needed in conditional probability so you will have to get them to think rather than do if you decide to use dice. They can't remove numbers but they can pretend it is a loaded dice or that they can't roll the same number twice.
Odds of Cancer (MIT)
This was created by MIT and is a great real world application of conditional probability. The question at hand seems really complex and to think that a test can be 96% accurate or more is a lot for the students to wrap their heads around. However, this lesson will get them to understand how the accuracy of tests for cancer can be calculated by Algebra 2 students and not necessarily MIT students!
Flipping Coins
Obviously another one where you can't replace the face on the coin but this way of teaching probability is good for classes that are not as math savvy because of the coin having two options.
Word Docs & PowerPoints
To gain access to our editable content Join the Algebra 2 Teacher Community!
Here you will find hundreds of lessons, a community of teachers for support, and materials that are always up to date with the latest standards.
PDFs
122 Assignment  Conditional Probability (Free)
122 BellWork  Conditional Probability (Free)
122 Video Lesson (Members Only)
122 Lesson Plan (Members Only)
122 Online Activities (Members Only)
122 Exit Quiz  Conditional Probability (Free)
122 Guided Notes Student Edition  Conditional Probability (Free)
122 Guided Notes Teacher Edition (Members Only)
Want access to everything? Simply click the image below to Get All of Our Lessons!
Click Here to Join Now!
Subscribe to Blog via Email

How to Make Your Math Class Paperless

I Stopped Letting My Students Use Calculators in Class!

Holiday Algebra 2 Activities

Algebra 2 Teacher Hacks

Angles and the Unit Circle – Time to Eat!

Conditional Probability – Call it in the Air!

Area Under a Curve – Is your Umbrella Big Enough?

Properties of Logarithms

Adding and Subtracting Matrices – Using Rainbows

The Nightmare of Exploring Conic Sections
Don't forget to Pin this!
Share this:
 Click to share on Facebook (Opens in new window)
 Click to share on Pinterest (Opens in new window)
 Click to share on Twitter (Opens in new window)
 Click to share on Reddit (Opens in new window)
 Click to print (Opens in new window)
 More
 Click to share on Google+ (Opens in new window)
 Click to share on LinkedIn (Opens in new window)
 Click to share on Pocket (Opens in new window)
 Click to share on Tumblr (Opens in new window)
 Click to share on WhatsApp (Opens in new window)
 Share on Skype (Opens in new window)
 Click to share on Telegram (Opens in new window)