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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 Life Bundle #1 - Life Lessons

Life Bundle #1 - 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 - Life Bundle #1 includes four levels of differentiation for each of the following categories: - Budgets - Closing Costs - College Expenses - Exchange Rates - Paychecks - Receipts - Sales Prices - Unit Prices - Vacation Expenses - Themeparks These warmups can be used for students in late elementary, middle school, high sc
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 Math Along Route 66 - Life Lessons

Math Along Route 66 - Life Lessons

Created by
DrSigma
PDF & GOOGLE VERSIONS IN ONE PRODUCT - 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 - Math Along Route 66 contains 16 warmup sheets for students that involve calculating the real life expenses associated with a journey along historic Route 66 in the United States. The warmups increase in difficulty. There are four warmups for each of the following levels of difficulty which buil
Preview of Coordinate Graphing - GraphX - Jungle Cats Bundle

Coordinate Graphing - GraphX - Jungle Cats Bundle

Created by
DrSigma
Dr. Sigma's World Of Mathematics Jungle Cats 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 panther, wildcat, tiger and lion. Would you like to receive updates and information about new products?
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 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 Budgets - Life Lessons

Budgets - Life Lessons

Created by
DrSigma
PDF & GOOGLE VERSIONS IN ONE PRODUCT - 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 - Budgets contains 16 warmup sheets for students that involve analyzing budgets. 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 total monthly
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 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
Preview of Closing Costs - Life Lessons

Closing Costs - 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 - Closing Costs contains 16 warmup sheets for students that involve calculating closing costs for residential home purchases. 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 total c
Preview of Vacation Expenses - Themeparks - Life Lessons - Now Self Checking

Vacation Expenses - Themeparks - Life Lessons - Now Self Checking

Created by
DrSigma
**** NOW INCLUDES SELF-CHECKING GOOGLE SHEETS VERSION **** PDF & GOOGLE VERSIONS IN ONE PRODUCT - 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 - Vacation Expenses - Themeparks contains 16 warmup sheets for students that involve calculating the real life expenses associated with vacations taken at various themeparks in the United States and nearby countries. The war
Preview of College Expenses - Life Lessons

College Expenses - 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 - College Expenses 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 of total college expenses for a year - Level 2, Cal
Preview of Coordinate Graphing - GraphX - Cardinal

Coordinate Graphing - GraphX - Cardinal

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11128 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 cardinal. Included is a legend for the symbols, a finished graph and three separate worksheets that include basic integers, multiplication of exponents and a blank area so a teacher can crea
Preview of Coordinate Graphing - GraphX - Husky

Coordinate Graphing - GraphX - Husky

Created by
DrSigma
Dr. Sigma's World Of Mathematics GraphX 11126 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 husky dog. 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 or her o
Preview of Adventures In Psuedo-Ku Math Vol. 1

Adventures In Psuedo-Ku Math Vol. 1

Created by
DrSigma
Adventures In Pseudo-Ku Math Vol. 1 contains two two-part problem-solving adventures involving: - Whitebeard's Loot - Granny Gert's Treasure In the first part of the adventure, the student solves 2 digit by 2 digit multiplication problems in order to obtain the starting numbers in an easy Sudoku puzzle. After completing the computation problems, and replacing the letters in the puzzle, the student utilizes problem-solving and critical thinking skills to complete the Sudoku puzzle. This activ
Preview of Coordinate Graphing - Skylines - Amazon Tree Frog

Coordinate Graphing - Skylines - Amazon Tree Frog

Created by
DrSigma
**** FREEBIE **** Dr. Sigma's World Of Mathematics Skylnes - Amazon Tree Frog is a new product that is currently being tested by Dr. Sigma. Feel free to download and pass along to friends. Your feedback would be greatly appreciated!!!! Would this work in your classroom? What would you change? What grade do you teach? Your feedback will help determine whether additional products in this line will be created. The idea for this line is to be able to have a graphing product for elementary
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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.