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# Percent Models - A Visual Approach to Percents

Lesson 1 of 21

## Objective: Students will be able to apply percents to real world problems using a percent bar model.

#### Launch

*10 min*

As students enter the room, they will immediately pick up and begin working on the opener. My process for openers (**Instructional Strategy - Process for openers**) is relatively consistent. The method allows students to construct viable arguments and critique the reasoning of others, which is **Mathematical Practice 3**.

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 determine percent of a number using a bar model**. Students will jot the learning target down in their agendas. (In my school's 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 engage in

**Practices 1 and 3**, being required to reason together to solve problems without giving up!

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#### Summary

*5 min*

To summarize this lesson, I will ask students to have a Table Discussion on the following prompt:

**Without drawing a model, discuss with your table how to find 40% of 90. **

The purpose of this discussion is for students to start using mental percent – when we used a bar model, we split the bar into sections of 10 percent. If a student can identify what 10% is, they can use that to find pretty much every other percent. I am hoping to hear discussion like – well, 10% would be 9, so 4 times 9 is 36. I will have each table share out what they discussed at their table.

Here's what happened today: Classroom Video: Checks for Understanding

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Thank you so much for the videos and the use of bar models and using 10 every time. This is going to set my kids up for success!

| one year ago | Reply

Absolutely excellent lesson, resources and video! Thank you! My special educations students will love this.

Betty Paralikas

| 2 years ago | Reply*Responding to Patrick Moore*

My students really had a good time with the visual percents! I think it really helped them to understand the concept of percent, and how it is part of something!

| 2 years ago | Reply*Responding to cori baker*

You can download the resources, open them, and then print them out!

| 2 years ago | Reply*expand comments*

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

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*Resources(31)*

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)