Chipmunk Error Analysis

1

March 6, 2014 by ray_emily

Getting kids doing error analysis in math class has been hugely beneficial, this year.  I am beyond-words thrilled that I’ve stumbled across this way to get sixth graders analyzing, discussing, and writing multi-paragraph, thoughtful explanations (!!) of student mistakes and why they happen.

We did a second go-round of blog posts / error analyses using the same method as last time, but I offered up a different batch of errors. 

This time, Alvin, Simon, and Theodore (har, har…) were the students in need of help. Each chipmunk encountered a different, unique problem when attempting to do multiplication (of fractions and decimals) and long division (with two-digit divisors).

Alvin doesn’t change the mixed numbers to improper fractions:

Alvin's Work - Analyzing Student Errors

 

 

 

 

 

 

Simon is obsessed with lining up decimal points – as well as the standard algorithm for adding decimals:

Simon's Work - Analyzing Student Errors

 

 

 

 

 

 

Theodore forgets zeros in the quotient:

Theodore's Work - Analyzing Student Errors

 

 

 

 

 

 

Feel free to use these errors to drum up discussion in your classroom! Making kids write about the errors is not obligatory – but I think it had a huge impact on retention. Also, I’m seeing my kids get better and better at locating errors, thinking up reasons why students might make errors, and articulating their thought processes. Hurrah!

 

Advertisements

One thought on “Chipmunk Error Analysis

  1. Wayne says:

    Well presented. Students learn best by rationalizing their own errors

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

My Web 2.0 Journey

Some thoughts from a middle school math teacher.

ThinkThankThunk

Some thoughts from a middle school math teacher.

Always Formative

Some thoughts from a middle school math teacher.

the radical rational...

in search of innovative ideas with a well-balanced approach for the math classroom

The Number Warrior

Assorted posts on mathematics and education

Some thoughts from a middle school math teacher.

Teaching Statistics

Some thoughts from a middle school math teacher.

square root of negative one teach math

Some thoughts from a middle school math teacher.

Pi Crust

An accomplished novice wonders about the challenges of depth over breadth. For musings on parenting and technology, check out bedtimebits.wordpress.com

{Musing Mathematically}

Some thoughts from a middle school math teacher.

MT|SM

Some thoughts from a middle school math teacher.

misscalcul8

Some thoughts from a middle school math teacher.

Megan Hayes-Golding

Still learning.

Mathy McMatherson

Bloggy McBloggerson

Math Mama Writes...

Some thoughts from a middle school math teacher.

Math Goes Pop

Some thoughts from a middle school math teacher.

Lines and Lines of Tangency

mathematical asides

Learning to Fold

a work in progress

I Speak Math

Integrating Technology and Mathematics

I Hope This Old Train Breaks Down...

Some thoughts from a middle school math teacher.

Some thoughts from a middle school math teacher.

Some thoughts from a middle school math teacher.

Comments on: Khan Academy Does Angry Birds

Some thoughts from a middle school math teacher.

DOING MATHEMATICS - blog

Some thoughts from a middle school math teacher.

%d bloggers like this: