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DrSigma

Rated 4.87 out of 5, based on 351 reviews
365 Followers
Naperville, Illinois, United States
About the store
15 years in the corporate world in consulting and corporate strategy at Land's End, Accenture, McDonald's Corporation and United Airlines. Math, social studies and character education at the middle school level. Math, business and computer science at the high school level. Corporate Strategy and Marketing at the undergraduate level. Topics In Strategy and Corporate Strategy at the MBA level.
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Preview of Paychecks - Life Lessons

Paychecks - Life Lessons

Created by
DrSigma
Dr. Sigma's Life Lessons are short math warmups that involve everyday tasks that students will need to understand as they grow up and become responsible citizens. Life Lessons - Paychecks contains 16 warmup sheets for students that involve calculating gross pay, deductions and net pay for individual paychecks.. The warmups increase in difficulty. There are four warmups for each of the following levels of difficulty which build upon the difficulty of the previous levels: - Level 1, Calculation
Preview of Unit Prices - Life Lessons

Unit Prices - Life Lessons

Created by
DrSigma
Dr. Sigma's Life Lessons are short math warmups that involve everyday tasks that students will need to understand as they grow up and become responsible citizens. Life Lessons - Unit Prices contains 16 warmup sheets for students that involve unit prices of grocery items. The warmups increase in difficulty. There are four warmups for each of the following levels of difficulty which build upon the difficulty of the previous levels: - Level 1, division using whole numbers of items - Level 2, divis
Preview of Mixture Problems - XTreme Math - The Bucket Method

Mixture Problems - XTreme Math - The Bucket Method

Created by
DrSigma
WHAT???? MIXTURE PROBLEMS???? Those dreaded "mixture" problems always reappear when you least expect them! Students hate them and often cannot even figure out how to get started. Enter The Bucket Method!!!! This is a graphical approach to solving "mixture" word problems that helps students organize their data in order to solve these problems. DrSigma did not create "The Bucket Method" but the good doctor did revise it to make it easier for students to use. Included in this packet is a gra
Preview of Coordinate Graphing - GraphX - Eagle

Coordinate Graphing - GraphX - Eagle

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11121 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of an eagle. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers, degree of polynomials and a blank area so a teacher can create his o
Preview of Coordinate Graphing - GraphX - Panther

Coordinate Graphing - GraphX - Panther

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11121 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a panther. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers, variables to a power and a blank area so a teacher can create hi
Preview of Coordinate Graphing - GraphX - Bulldog

Coordinate Graphing - GraphX - Bulldog

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11122 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a bulldog. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers, complements of angles and a blank area so a teacher can create his
Preview of Exchange Rates - Life Lessons

Exchange Rates - Life Lessons

Created by
DrSigma
Dr. Sigma's Life Lessons are short math warmups that involve everyday tasks that students will need to understand as they grow up and become responsible citizens. Life Lessons - Exchange Rates contains 16 warmup sheets for students that involve calculating product and service costs in a variety of currencies. The warmups increase in difficulty. There are four warmups for each of the following levels of difficulty which build upon the difficulty of the previous levels: - Level 1, Calculation of
Preview of Coordinate Graphing - GraphX - Lion

Coordinate Graphing - GraphX - Lion

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 12128 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a lion. Included is a legend for the symbols, a finished graph and three separate worksheets that includes greatest common factors,degrees of a monomial and a blank area so a teacher can creat
Preview of Coordinate Graphing - GraphX - Gator

Coordinate Graphing - GraphX - Gator

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 1212-19 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a gator. Included is a legend for the symbols, a finished graph and three separate worksheets that include factors of a number, complements of angles and a blank area so a teacher can create
Preview of Coordinate Graphing - GraphX - Wildcat

Coordinate Graphing - GraphX - Wildcat

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 111215 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a wildcat. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integer division, evaluation of functions and a blank area so a teacher can
Preview of Life Lessons - Receipts

Life Lessons - Receipts

Created by
DrSigma
Dr. Sigma's Life Lessons are short math warmups that involve everyday tasks that students will need to understand as they grow up and become responsible citizens. Life Lessons - Receipts contains 16 warmup sheets for students that involve retail receipts. The warmups increase in difficulty. There are four warmups for each of the following levels of difficulty which build upon the difficulty of the previous levels: - Level 1, addition and subtraction of grocery receipts - Level 2, multiplicatio
Preview of Coordinate Graphing - GraphX - Tiger

Coordinate Graphing - GraphX - Tiger

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11124 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a tiger. Included is a legend for the symbols, a finished graph and three separate worksheets that include division of integers, proportions and a blank area so a teacher can create his or her
Preview of Coordinate Graphing - GraphX - Mustang

Coordinate Graphing - GraphX - Mustang

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 111212 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a mustang. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers, evaluating functions and a blank area so a teacher can create his
Preview of Webquest - Quest For Knowledge - What Do I Want To Be When I Grow Up?

Webquest - Quest For Knowledge - What Do I Want To Be When I Grow Up?

Created by
DrSigma
This is a ****FREE**** "Quest For Knowledge" (webquest) designed for students in their first semester of Applied Math although it could be used by any high school or middle school student in any subject. NOTE: FOR A STUDENT TO USE THIS WEBQUEST, THE SCHOOL MUST HAVE AN ACCOUNT WITH CAREER CRUISING. This quest focuses on identifying potential careers for a student based on his or her interests and abilities. The end result of the project is that the student completes two applications for coll
Preview of Coordinate Graphing - GraphX - Boo Monster

Coordinate Graphing - GraphX - Boo Monster

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 92725 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a "boo monster." Included is a legend for the symbols, a finished graph and two separate worksheets that include coordinate points, basic operations of integers, and a blank area so a teacher
Preview of Coordinate Graphing - GraphX - Pirate

Coordinate Graphing - GraphX - Pirate

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11127 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a pirate or "raider." Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers, proportions and a blank area so a teacher can create his
Preview of Coordinate Graphing - GraphX - Mascots #1

Coordinate Graphing - GraphX - Mascots #1

Created by
DrSigma
Dr. Sigma's World Of Mathematics Mascots #1 is a compilation workbook of mathematics worksheets that can be used by all levels of mathematics (upper elementary through high school). These worksheets involve solving problems and then plotting the answers as points which, once they are connected, form pictures. Included in this workbook are coordinate graphing exercises that make pictures of a bull, a gator, a wolverine and a patriot. Would you like to receive updates and information about new pr
Preview of Coordinate Graphing - GraphX - Ram

Coordinate Graphing - GraphX - Ram

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11121 is a mathematics worksheet that can be used by all levels of mathematics (upper elementary through high school). It involves solving problems and then plotting the answers as points which, once they are connected, form a picture. In this case, the picture is of a ram. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers,degrees of a monomial and a blank area so a teacher can create his or he
Preview of Venn Diagrams - Math Vitals

Venn Diagrams - Math Vitals

Created by
DrSigma
Math Vitals - Venn Diagrams is a set of 16 separate exercises that can be used as a warm-up or exit slip activity or as part of a larger unit on graphing. The 16 slips are differentiated across four increasingly difficult categories: I - Reading Two Category Venn Diagrams 2 - Reading Three Category Venn Diagrams 3 - Creating Two Category Venn Diagrams 4.- Completing Three Category Venn Diagrams Included in the materials are answer keys for all slips. Would you like to receive updates and in
Preview of Sales Prices - Life Lessons

Sales Prices - Life Lessons

Created by
DrSigma
Dr. Sigma's Life Lessons are short math warmups that involve everyday tasks that students will need to understand as they grow up and become responsible citizens. Life Lessons - Sales Prices contains 16 warmup sheets for students that involve calculating sales prices, markups and markup rates for a variety of products.. The warmups increase in difficulty. There are four warmups for each of the following levels of difficulty which build upon the difficulty of the previous levels: - Level 1, subt
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About the store

Experience

15 years in the corporate world in consulting and corporate strategy at Land's End, Accenture, McDonald's Corporation and United Airlines. Math, social studies and character education at the middle school level. Math, business and computer science at the high school level. Corporate Strategy and Marketing at the undergraduate level. Topics In Strategy and Corporate Strategy at the MBA level.

Teaching style

I really believe that learning should be fun. I specialize in helping students who do not fit into the traditional classroom environment--those who are in the lower tracks or special alternative programs for students who have been placed in the programs due to truancy or in lieu of expulsion. Teaching a subject that students hate is difficult and you must make it non-threatening and fun. I believe the key to math success is through critical thinking via puzzles, games and brain-teasers which build confidence while teaching problem-solving. I strongly believe that anyone can be taught anything.

Awards & shining teacher moments

I feel privileged to have worked with Dr. Randy Pausch, author of the Last Lecture, and his team on teaching computer programming through the Alice environment.

My own education history

Bachelor of Arts from the University of Iowa with a double major in mathematics and secondary education. MBA from the University of Iowa with an emphasis in Marketing. Currently pursing a degree in fine arts in my spare time.

Additional biographical information

My father, Dr. Gary C. Ramseyer, passed away suddenly in the Spring of 2012. He taught Statistics at Illinois State University and developed a wonderful website celebrating humor in statistics. http://my.ilstu.edu/~gcramsey/Gallery.html. I now maintain this site in my father's honor. He taught me a lot about math and how to have fun with teaching. He always performed for his graduate students as Dr. Sigma. I have adopted this name as my screen name in his honor.