the homework machine chapter 6

The Homework Machine

50 pages • 1 hour read

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Summary and Study Guide

The Homework Machine , written by acclaimed American author Dan Gutman was first published in 2007 by Simon & Schuster Books for Young Readers and is the first of a two-book series. The second book, The Return of the Homework Machine , was published in 2011. Gutman is primarily a children’s fiction writer who has been nominated for and won numerous awards, including 18 for The Homework Machine alone. Gutman is best known for his humorous series, My Weird School , in which there are more than 70 books. He lives in New York City with his family.

The paperback edition used for this study guide was published by Simon & Schuster in 2007.

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Plot Summary

The Homework Machine is told from the perspectives of multiple characters in the format of tape recordings for a police report.

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The four main characters are fifth-grade students who are grouped at the same classroom table because their last names start with D: Sam Dawkins (Snik), Kelsey Donnelly , Judy Douglas , and Brenton Damagatchi . Other than sharing the same last initial, the students have nothing in common. Snik is the cool class smart aleck; Kelsey is laid back and doesn’t care about school; Judy is conscientious and in the gifted program; and Brenton is a loner and genius who designs software and studies psychology in his spare time. Snik pushes people’s buttons, and one day he pushes Brenton too far—implying that Brenton spends all his free time doing homework. Brenton retorts that he doesn’t spend any time doing homework and lets slip that he has invented a homework machine.

Snik calls Brenton a liar, so Brenton invites Snik, Judy, and Kelsey to his house to see for themselves. The group are stunned when Brenton’s machine prints out perfectly completed homework in Brenton’s handwriting. Brenton agrees to let Snik, Judy, and Kelsey join him after school to “do” their homework and even rewrites the software to accommodate their handwriting. The unlikely foursome spends every afternoon together, but they insist that they are not friends and that the only reason they tolerate each other is to use the homework machine, which they name Belch. Judy feels guilty about cheating but enjoys getting A’s and uses the extra time to take up ballet. Kelsey’s vastly improved grades earn her privileges, such as a belly-button piercing, from her mother. As the weeks pass, the D Squad becomes addicted to using Belch and the boundaries between their various social identities begin to blur. Snik shows an interest in “boring” chess, which Brenton plays, and Judy tries to be complimentary about Kelsey’s piercings (while finding them disgusting). Everything seems to be going well. However, things start to rapidly fall apart halfway through the year. Judy and Kelsey’s other friends resent their new associations and “unfriend” them, and their teacher, Miss Rasmussen , suspects that they are cheating.

In addition, a strange man has been stalking the group ever since Brenton designed software to instigate a hugely successful social media-driven “red socks day” that spread across America. Miss Rasmussen springs a surprise test on the class to see whether the D Squad really knows their schoolwork. Sure enough—Kelsey and Snik fail, and Judy gets a C, confirming Miss Rasmussen’s suspicions. Before Miss Rasmussen can report them, Snik’s father, who is in the military, is killed in the Middle East. This tragic event diverts Miss Rasmussen’s attention from the cheating, which seems trivial in comparison. The bond between the D Squad strengthens as the stress of keeping Belch secret increases.

Together they decide to shut Belch down, only to discover that Belch has taken on a life of its own and will not power off. They throw Belch into the Grand Canyon and feel relief as they watch it disappear. However, when backpackers find computer pieces at the bottom of the canyon, the D Squad is called into the sheriff’s office where they confess to everything. The case is closed, but their unlikely friendships continue to strengthen and grow. The stalker turns out to be someone scouting Brenton to offer him a job as an influencer for his company. The company’s clients want to market their products to kids. Brenton simply offers him an idea he would like to influence kids with: “Do your homework” (146).

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Embark on a literary adventure with our "Chapter 6 Worksheet for The Homework Machine." This tailored resource not only enhances vocabulary acquisition with carefully selected words from the chapter but also reinforces comprehension through thought-provoking questions. Perfect for individual or group study, this worksheet sets the stage for deeper engagement with the story while fostering critical thinking skills.

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The Homework Machine

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DOING HOMEWORK BECOMES A THING OF THE PAST The unlikely foursome made up of a geek, a class clown, a teacher’s pet, and a slacker – Brenton, Sam Snick, Judy and Kelsey, respectively, – are bound together by one very big secret: the homework machine. Because the machine, code named Belch, is doing their homework for them, they start spending a lot of time together, attracting a lot of attention. And attention is exactly what you don’t want when you are keeping a secret. Before long, members of the D Squad, as they are called at school are getting strange Instant Messages from a shady guy named Milner; their teacher, Miss Rasmussen, is calling private meetings with each of them and giving them pop tests that they are failing; and someone has leaked the possibility of a homework machine to the school newspaper. Just when the D Squad thinks things can’t get any more out of control, Belch becomes much more powerful than they ever imagined. Soon the kids are in a race against their own creation, and the loser could end up in jail…or worse!

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Dan Gutman is the New York Times bestselling author of the Genius Files series; the Baseball Card Adventure series, which has sold more than 1.5 million copies around the world; and the My Weird School series, which has sold more than 12 million copies. Thanks to his many fans who voted in their classrooms, Dan has received nineteen state book awards and ninety-two state book award nominations. He lives in New York City with his wife, Nina. You can visit him online at www.dangutman.com.

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The Homework Machine

Table of contents, about the book, about the author.

Dan Gutman hated to read when he was a kid. Then he grew up. Now he writes cool books like The Kid Who Ran for President ; Honus & Me ; The Million Dollar Shot ; Race for the Sky ; and The Edison Mystery: Qwerty Stevens, Back in Time . If you want to learn more about Dan or his books, stop by his website at DanGutman.com.

Product Details

• Publisher: Simon & Schuster Books for Young Readers (June 26, 2007)
• Length: 176 pages
• ISBN13: 9780689876790
• Grades: 3 - 7
• Ages: 8 - 12
• Fountas & Pinnell™ R These books have been officially leveled by using the F&P Text Level Gradient™ Leveling System

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• ILA/CBC Children's Choices
• Maud Hart Lovelace Award Nominee (MN)
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Table of Contents

About the book, about the author.

Dan Gutman hated to read when he was a kid. Then he grew up. Now he writes cool books like The Kid Who Ran for President ; Honus & Me ; The Million Dollar Shot ; Race for the Sky ; and The Edison Mystery: Qwerty Stevens, Back in Time . If you want to learn more about Dan or his books, stop by his website at DanGutman.com.

Product Details

• Publisher: Simon & Schuster Books for Young Readers (June 26, 2007)
• Length: 176 pages
• ISBN13: 9780689876790
• Grades: 3 - 7
• Ages: 8 - 12
• Fountas & Pinnell™ R These books have been officially leveled by using the F&P Text Level Gradient™ Leveling System

Browse Related Books

• Age 12 and Up
• Children's Fiction > Social Themes > Adolescence & Coming of Age
• Children's Fiction > Social Situations > Adolescence
• Children's Fiction > School & Education
• Children's Fiction > Humorous Stories

Awards and Honors

• ILA/CBC Children's Choices
• Maud Hart Lovelace Award Nominee (MN)
• Booklist Editors' Choice
• South Carolina Picture Book Award Nominee
• Iowa Children's Choice Award Nominee
• Young Hoosier Book Award Nominee (IN)
• Indian Paintbrush Book Award Nominee (WY)
• Chicago Public Library's Best of the Best
• Nutmeg Book Award Nominee (CT)
• Colorado Children's Book Award Master List
• Child Magazine's Guide to Top Books, Videos and Software of the Year
• Pacific Northwest Young Reader's Choice Award Master List
• Volunteer State Book Award Nominee (TN)
• Virginia Readers' Choice Award List
• Prairie Pasque Award Nominee (SD)
• Land of Enchantment RoadRunner Award Nominee (NM)
• Nene Award Nominee (HI)
• Sunshine State Young Readers' Award List (FL)
• Massachusetts Children's Book Award Nominee
• Golden Sower Award (NE)
• Sasquatch Book Award Nominee (WA)

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High resolution images.

• Book Cover Image (jpg): The Homework Machine Trade Paperback 9780689876790 (2.4 MB)

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The Homework Machine

Starting with a stern statement from the Grand Canyon, Arizona Police Chief Rebecca Fish, meet four fifth graders in big trouble. There's long-haired, rebellious, cool guy Sam Dawkins; fun-loving, unacademic, pink-haired Kelsey Donnelly, African American grind Judy Douglas, and friendless genius Brenton Damagatchi. The whole thing starts because Sam is anti-homework, especially the daily fill in-the-blank worksheets his first-year teacher Miss Rasmussen hands out. Sam is skeptical when Brenton claims he has programmed his computer to search the web and do all his homework each day, but it’s true. Soon the four seatmates are spending every afternoon in Brenton’s bedroom, printing out their daily assignments on the computer they nickname Belch. It can’t do any harm, right? The chronology and confession of their ill-fated escapade is related entirely through a series of transcripts, narrated by the four contrite kids, their parents, classmates, and Miss Rasmussen.

There are many interesting threads explored in this nimble story: keeping secrets, making friends, being popular, the morality of taking the easy way out, first crushes, the meaning of war, and even the loss of a parent. The setting of the Grand Canyon and sub-themes about playing chess, starting fads, and using a catapult will get kids looking up supporting information in books and on the Internet. Questions readers can think about as they read include: Which of the four main characters is most like or unlike you and why? Which one would or would not be your friend and why?

Reviewed by : JF.

Themes : DEATH. FRIENDSHIP. GRIEF. HUMOR.

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CRITICS HAVE SAID

• “A dramatic and thought-provoking story with a strong message about honesty and friendship.” – Elaine E. Knight, School Library Journal
• “Booktalkers will find this a natural, particularly for those hard-to-tempt readers whose preferred method of computer disposal involves a catapult and the Grand Canyon.” – Carolyn Phelan, Booklist
• “Tucked in between the laughs are excellent messages about tolerance, honesty, and the importance of what the students’ teacher calls the “homework machine [that] already exists. It’s called your brain.” – Child Magazine
• “Short chapters of alternating voices tell the story, which is funny in some places, but is not without intense and sometimes sad moments.” – Susie Wilde, Children

IF YOU LOVE THIS BOOK, THEN TRY:

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• Codell, Esm Raji. Sahara Special. Hyperion, 2003. ISBN-13: 9780786816118
• Fletcher, Ralph. Flying Solo. Clarion, 1998. ISBN-13: 9780395873236
• Gutman, Dan. The Get Rich Quick Club. HarperCollins, 2004. ISBN-13: 9780060534424
• Gutman, Dan. The Kid Who Ran for President. Scholastic, 1996. ISBN-13: 9780590939881
• Gutman, Dan. Qwerty Stevens Back in Time: The Edison Mystery. Simon & Schuster, 2001. ISBN-13: 9780590939881
• Park, Barbara. Maxie, Rosie, and Earl—Partners in Grime. Knopf, 1990. ISBN-13: 9780679806431
• Pearsall, Shelley. All of the Above. Little, Brown, 2006. ISBN-13: 9780316115261
• Rocklin, Joanne. For Your Eyes Only! Scholastic, 1997. ISBN-13: 9780142003220
• Sachar, Louis. Sideways Stories from Wayside School. Morrow, 1978. ISBN-13: 9780380698714

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The Homework Machine Paperback – June 26, 2007

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• Book 1 of 2 The Homework Machine
• Print length 176 pages
• Language English
• Grade level 3 - 7
• Lexile measure 680L
• Dimensions 5.13 x 0.5 x 7.63 inches
• Publisher Simon & Schuster Books for Young Readers
• Publication date June 26, 2007
• ISBN-10 9780689876790
• ISBN-13 978-0689876790
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About the author, excerpt. © reprinted by permission. all rights reserved., the homework machine, aladdin paperbacks.

Continues... Excerpted from The Homework Machine by Dan Gutman Copyright © 2007 by Dan Gutman. Excerpted by permission. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher. Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

Product details

• ASIN ‏ : ‎ 0689876793
• Publisher ‏ : ‎ Simon & Schuster Books for Young Readers; Reprint edition (June 26, 2007)
• Language ‏ : ‎ English
• Paperback ‏ : ‎ 176 pages
• ISBN-10 ‏ : ‎ 9780689876790
• ISBN-13 ‏ : ‎ 978-0689876790
• Reading age ‏ : ‎ 8 - 11 years, from customers
• Lexile measure ‏ : ‎ 680L
• Grade level ‏ : ‎ 3 - 7
• Item Weight ‏ : ‎ 3.84 ounces
• Dimensions ‏ : ‎ 5.13 x 0.5 x 7.63 inches
• #442 in Children's Values Books
• #944 in Children's School Issues
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About the author

I was born in a log cabin in Illinois and used to write by candlelight with a piece of chalk on a shovel. Oh, wait a minute. That was Abraham Lincoln.

Actually, I’m a children's book author. I’ve written more than 170 books for kids from kindergarten up to middle school.

For the little ones, I write picture books like "Rappy the Raptor," about a rapping raptor named Rappy, who raps.

For beginning readers, I write "My Weird School," about some kids who go to a school in which all the grownups are crazy. Thirty-one million copies have been sold. I also write “Wait! WHAT?” a series of biographies that focus on the unusual aspects of people like Albert Einstein, Amelia Earhart, Muhammad Ali, and Teddy Roosevelt.

For middle-graders, I write the baseball card adventure series, about a boy who has the power to travel through time using a baseball card like a time machine. He goes on adventures with players like Babe Ruth, Jackie Robinson, Willie Mays, and others.

For advanced readers, I write "The Genius Files," "Flashback Four,” “Houdini and Me” and others.

If you’d like to find out more, visit my web site (www.dangutman.com), my Facebook fan page, and follow me on Twitter and Instagram @dangutmanbooks.

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Homework Machine Ch 6

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ME 274: Basic Mechanics II

Homework h6.k - sp24.

DISCUSSION THREAD

Any questions?? Please ask/answer questions regarding this homework problem through the "Leave a Comment" link above.

24 thoughts on “Homework H6.K - Sp24”

In order to solve this problem, it would be useful to review base excitation which can be found on page 416 in the book. It would also be helpful to look at problem 6.C.4 which we covered in class.

For this question, its important to consider the moment from the no slip point in order to cancel out the effects of friction in the moment equation.

This problem is almost identical to Example 6.C.4 from the lecturebook. It is important to remember the usage of kinematics to relate the x coordinate and its derivatives to theta and its derivatives. When dealing with the sum of moments around a no-slip point, make sure to use the parallel axis theorem to find the moment of inertia around that point.

It can be nice in the problem to take the moment about the bottom of the disk to avoid having friction as a force that effects it. We have done this many other homework's.

Based on the FBD, it is smart to sum up moments about the no slip point, which allows you to ignore the friction force at that point. For my kinematics equation, related the no slip point to O in order to relate the theta and x variables and their derivatives to each other.

Converting the x-components of the differential equation to theta using x = R*theta helps derive the EOM in terms of theta which helps when proceeding to theta_p in the particular solution.

A good way to make sure the direction of the base extension spring force is correct is to once again draw a system where displacement in x_b is larger than x. Once this is done, it is easy to tell the force will be to the right.

Is the base B able to move in the y direction? The problem doesn't say it has any vertical motion but the diagram makes it look like it's not being supported in the y direction.

The base B is assumed to not move in the y direction as there are no forces in the y while also not having an equation of motion in the y direction.

The base B is more of an idea than a real object in the system. The rectangle represents a displacement of the spring due to some other factor which is not known within the context of the problem. You could think of this as another body that is infinitely larger than the bodies in the system, so much that this body's motion is unaffected by the spring force.

I appreciate what you are saying; however, the base B is actually a body. That body "B" is given a prescribed displacement in time of x_B(t). The actual size or mass of the body is not relevant in terms of the motion of disk. The size does matter in terms of the force that must be applied to B to get this prescribed displacement vs. time. Typically, the more mass that B has, the larger the force that must be applied to it in order get that motion.

In the Kinetics, it can be helpful to sum the moments about the no slip point. This is useful since it allows for friction to be ignored.

In order to solve this problem, I applied the techniques used to solve 6.C.4, the most important of which was taking the sum of the moments around the no-slip point, as this removed many of the troublesome factors.

As stated above this problem is very similar to 6.C.4 from the lecture book. One thing to keep in mind is that x_b(t) is already given and the particular solution is given in the form of Asin(omega t) so we can easily point out that there is no cosine term in the answer.

When solving this problem, the moment is considered about the no-slip point. Due to this, it is important to use the parallel axis theorem to find the value of I.

When drawing the Free Body Diagram for this problem, it is not important whether you draw the friction force to the left or the right.

Yes I agree with this, because later on you will take the moments around the no-slip point which will eliminate the frictional forces. That being said this is not universally applicable and in future problems care should be taken to make sure it is set up correctly based on the direction of motion of the desired object.

The plot for the excitation frequency has a notable remark as there is a change in the plot at the solved for frequency of the problem in part (d). Revealing, the significance of the natural frequency of the system.

For this problem it helps if you take the moment about the contact point to get rid of the friction term and also remember to use the parallel axis theorem for calculating I

For this problem, solving using the moment about O will also work as long as you also sum forces in the x direction to eliminate the friction force.

In class, we have been told that the Euler equation only works when taken at fixed points. In this problem, it is possible, although harder, to take the moment instead around the center of mass, O. This is not a fixed point of rotation of course, but why does it still work? Is it just a convenient situation?

In class, we have discussed THREE possibilities, in general, for the reference point in Euler's equation: 1) the center of mass; 2) a non-accelerating point; and, 3) a point whose acceleration vector points in the direction of the center of mass.

For this problem, you have options 1) and 3) possible: the center of mass O, and point C (note that the acceleration of point C points toward the center of mass O).

Let me know if this is not clear.

Similar to the example done in class, taking the moment about the where the disk touches the ground will allow you to avoid friction.

This problem is very similar to problem 6.C.4 that was done in class. After drawing FBDs, take the moment about the no-slip point to negate the friction force acting there. Make sure to then use the parallel axis theorem when find the moment of inertia. Use kinematics to relate x values and theta values to find the EOM.

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