# {FREE} Percent Error Analysis Tasks Grade 7-8 | PRINT+DIGITAL

*Do your middle school students have a good understanding of percentages? Help them deepen understanding while practicing essential skills using this FREE set of Percent Error Analysis Tasks.*

Using percentages and solving problems that involve percent is one of the most essential math concepts our kids learn. We use and **see percent in our daily life** all the time. And while we can **definitely use a calculator** (and should!), if you **don’t actually understand percent well enough** to use the calculator correctly, *it does you absolutely no good*. So if you are exploring **percent**, the **percent proportion**, **percent of change**, **tax**, **tips**, etc. with your students, grab this free set of error analysis tasks to help them discuss problems and make sure they understand!

**What is an Error Analysis Task?**

Error analysis means **analyzing a mistake**. It means **looking at the steps used** or the **mathematical reasoning applied** to a problem, **finding the mistake or misconception** and **explaining what went wrong**.

In other words, it is * more than just correcting the mistake*. Sure, kids might be able to work out a problem and tell you what the right answer is, but can they clearly articulate

*why the other answer is wrong*?

By explaining what went wrong, students are forced to **confront their own understanding**. Do they actually understand how to solve this math problem, or are they just following a random set of steps or a confusing algorithm?

If they can’t explain to a friend a mistake, *they won’t be able to find and correct their own mistakes.*

And if they can’t find and explain a mistake, *they have a very shallow understanding of the subject matter.*

On the other hand, by finding and explaining (and correcting) common errors, they will **deepen their own understanding** and have a **better idea of what common mistakes are** so they can **look out for them** in their own work in the future.

Although I often encourage students to** find and correct their own mistakes**, sometimes looking at a “third party” mistake is easier and less intimidating. They don’t feel ownership over the problem and don’t take it personally, *because it’s not their work.*

This also allows you to **discuss common misconceptions** with the class as a whole, because you can all look over and analyze the same steps and errors.

**Percent Math Skills Covered:**

This download includes **6 different error analysis tasks**, covering a variety of percent type math problems. You will find the following skills included:

- Using the percent proportion
- Using the percent equation
- Converting between fractions, decimals and percent
- Using the simple interest formula
- Percent of Change
- Sales Tax

**How to Use These Problems in the Classroom:**

Analyzing a percent problem is a great way to **get kids warmed up at the start of class**. It doesn’t need to be time consuming–you can either project the slide at the front of the room and have students write in a journal or on whiteboards, or you can print the half-sheet pages and give each student one as they enter class.

Give students **about 5 minutes** to look over the problem, analyze the steps and final solution and form their opinions.

In this case, the tasks are titled, *“Is it true?”*

The reason for this is to encourage students to really consider the problem, the situation and the final answer, *rather than just knowing or assuming the work and answer are incorrect*.

Sometimes the work and solution ARE true. But sometimes they’re not, and students will have to **explain why and correct it**.

Another idea is to **use these at the end of class as an exit ticket** to **assess understanding**.

The problems include a variety of percent problems, so you might **print a problem that directly relates to that day’s lesson** and let students answer it independently at the end of class. Then they can **pass them in to you on their way out** so you can see what they understand and how well they are able to justify their reasoning.

**Included in the Download:**

When you go to my shop and grab the pdf file, you will find the following included. Hopefully this will help you use this whether you are looking for **a digital task or printable task**.

- Teaching tips and access to the digital version, designed for google slides
- Directions for sharing the slides in google classroom
- Printable version of all 6 percent error analysis problems
- Answer keys for all 6 problems

*However you decide to use these problems, I hope it provides meaningful math learning for your students, and sparks exciting math conversation in your classrooms!*

**Ready to grab your set? Use the link below to grab this freebie in my shop.**