## ProbLinking Game.pdf - Section 2: The Chain Link Game

# The Chances Are, You Will do Great! A Review of Probability

Lesson 5 of 6

## Objective: SWBAT show what they know about probability in this review lesson.

## Big Idea: An engaging review that not only allows students to practice their skills but also maintains a slight edge of competitiveness!

*60 minutes*

#### Do Now

*10 min*

The students will be looking at the problem involving children. They will be asked to find the total outcomes if a family has 2 children. They may draw the sample space in a grid or a tree diagram. I’m not just looking for total outcomes. I want them to prove their answer to me using a visual (**SMP 3 and 5**)

Additionally, I want the to be able to determine what the probability of having 2 boys would be. (1/4). When student draw out the diagram, they can easily see the probability.

I chose this for the DO NOW as it sets the stage for our summative assessment review.

#### Resources

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#### The Chain Link Game

*40 min*

In this activity the students will be working in heterogeneous groups of four. I like to do this when reviewing so students can peer tutor as needed. The chain link review allows students to work as a group to solve the problems. The students will be reviewing concepts learned throughout this unit to prepare for their summative assessment.

As an extension to this activity, students can answer their probabilities using fractions, decimals and percents.

One thing I like to do during the chain link is to keep track of problems that I continually have to send students back to do over. I will use these problems during my final discussion to dispel any misconceptions that may have come about.

Chain link supports** mathematical practices 1,3,5**

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#### Closure

*10 min*

Use the questions the student had difficulty with as final, whole group discussion. The final discussion questions will be based on student need. If students don’t have any concerns, I will ask them the following questions.

- When finding the probability of an event occurring, what do you need to do? (I’m looking for students to tell me that depending on the situation, they could draw a diagram or write the probability as a fraction/ratio of favorable outcomes over total number of outcomes)
- How can we find total outcomes? (I’m looking for students to tell me they could either draw a diagram or multiply the number of outcomes together)
- When predicting an event to happen, how would you go about solving? (I’m looking for students to say they could set up a ratio table to assist with their calculations or they may just need to simplify their fraction)

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Your lesson is very good. I plan to use it as a Friday table group activity. We have a Rigorous Curriculum Design Team in our district

who have been working on the planning units focused on all the CCSS for every grade level. Although the units are good, there are still gaps, and using Better Lessons has been great!

Sometimes I use the lessons as you present them, and other times I put them into PPT cornell notes, (We are an AVID school). Thank you again-I will let you know how the lesson goes.

Lise Riehle, Hemet Unified School District/ 07 Math

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