##
* *Reflection: Student Grouping
Percent Models Review - Practice, Practice!! - Section 2: Explore

The key to this activity was all in the prep work. I laminated the questions for durability, and I posted answers to each problem underneath the corresponding envelope. I directed the students to get a card, work it out with their table, then check their answer - if their answer was correct they were to move on, if not, they were to rework or call me over if they could not figure it out. This allowed the student groups to be so much more independent, and it freed me to offer help to those who needed it (and in my next lesson, you will see that paid off!). Check out my clips of students working and listen to their great teamwork - deciding if questions were mark ups, downs, or simply percent of a number, and working together to determine how they should set up their bar models.

When working with the lower students, I focused on reading the problems to determine what it was we were doing - adding on to the bar, or taking away from the bar. Then, I focused on helping the students determine what number we were trying to break up. In one class I worked with a group of three very low boys, and once they had clues to guide them - they were able to work without me (spoiler alert - two got B's on their test in the next lesson and one got an A!!)

I like this "relay race" activity because it really frees me up to provide the one on one or small group help that many kids need - and because all students are moving and busy, it is not so obvious that I am giving that help :)

*Student Grouping: Explore Reflection*

# Percent Models Review - Practice, Practice!!

Lesson 4 of 21

## Objective: Students will be able to solve real world percent application problems using a percent bar diagram.

## Big Idea: Practice makes perfect! This lesson provides students the time to practice their skills on applying percent.

*60 minutes*

#### Launch

*10 min*

**Opener: **As students enter the room, they will immediately pick up and begin working on the opener –Instructional Strategy - Process for openers. This method of working and going over the opener lends itself to allow students to construct viable arguments and critique the reasoning of others, which is **mathematical practice 3**.

**Learning Target: **After completion of the opener, I will address the day’s learning targets to the students. For today’s lesson, the intended target is, “I can solve a variety of percent problems using a percent bar model.” Students will jot the learning target down in their agendas (our version of a student planner, there is a place to write the learning target for every day).

**Thoughts from Me! **As a way to dive into percents and create a conceptual understanding, students will utilize a bar model (**mathematical practice 5**). They will use the model to represent scenarios conceptually (**mathematical practice 4**) instead of just punching numbers. Students will also reason abstractly and quantitatively by analyzing what each model represents (**mathematical practice 2**). Students will look for repeated reasoning to make connections within percents (**mathematical practice 8**).

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#### Summary

*5 min*

**Instructional Strategy - Table Discussion: **To summarize this lesson, I will have students have a table discussion on: When is a percent greater than 100? When is a percent less than 100? I want students to both visualize and discuss what certain percents look like – when do we only use a portion of the percent bar – when do we extend the percent bar. This conceptual understanding will be key for moving forward without the bar model, so I want to give students the opportunity to discuss the concept and share with the class.

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##### Similar Lessons

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###### The Defining Pi Project, Day 1

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Environment: Urban

- UNIT 1: Introduction to Mathematical Practices
- UNIT 2: Proportional Reasoning
- UNIT 3: Percents
- UNIT 4: Operations with Rational Numbers
- UNIT 5: Expressions
- UNIT 6: Equations
- UNIT 7: Geometric Figures
- UNIT 8: Geometric Measurement
- UNIT 9: Probability
- UNIT 10: Statistics
- UNIT 11: Culminating Unit: End of Grade Review

- LESSON 1: Percent Models - A Visual Approach to Percents
- LESSON 2: Markdown Percent Models - What Percent Are You Paying?
- LESSON 3: Markup Percent Models - Percents Over 100?
- LESSON 4: Percent Models Review - Practice, Practice!!
- LESSON 5: Percent Models Test
- LESSON 6: Finding Percents
- LESSON 7: Finding Percents Fluency - It's a Chain Reaction!
- LESSON 8: Multiple Percents - What happens when you have a discount and tax?
- LESSON 9: Markup and Markdown Review - Are you paying more or less?
- LESSON 10: Markup, Markdown, or Just a Percent? TEST
- LESSON 11: Working Backwards with Percents - What happens when a problem is not straightforward?
- LESSON 12: Working Backward with Percent: Practice Makes Perfect!
- LESSON 13: Performing with Percents - Can you bust some common misconceptions?
- LESSON 14: More Practice with Percents - Practice Makes Perfect!
- LESSON 15: Working Backward and Forward...TEST!
- LESSON 16: Percent Change - By What Percent Did the Value Change?
- LESSON 17: Percent Change - More Practice
- LESSON 18: Simple Interest - Understand Your Money!
- LESSON 19: All Percents Review
- LESSON 20: All Percents Test
- LESSON 21: Proportional Reasoning and Percent - Can you apply the concepts? (3 Day Lesson)