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CalfordMath

Rated 4.93 out of 5, based on 1124 reviews
1,193 Followers
St. Catharines, Ontario, Canada
About the store
I've been a high school math educator since 2008, teaching all grades 9 through 12, and all levels from university and college bound to essentials/workplace to special needs learners. My products and ideas have been gilded by the frontlines of my own classroom experience. I'm always looking for an innovative way to teach the subject I love!
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Preview of Google Sheet Collaborative Mosaics Bundle

Google Sheet Collaborative Mosaics Bundle

Created by
CalfordMath
Here's a bundle of my digital mosaics! Some have printable versions as well. These are easy to assign to your class (share an "edit" link) and a fun collaborative way to bring your class together whether learning in a classroom or from home! Enjoy 50% off the sum of their individual prices! This bundle may grow as new mosaics are included, although I do not plan to include every digital mosaic (or the price would become too expensive to future buyers since 50% is the steepest allowable disc
Preview of Pythagorean Theorem Collaborative Google Sheets Mosaic (Distance Learning)

Pythagorean Theorem Collaborative Google Sheets Mosaic (Distance Learning)

Created by
CalfordMath
Bring your class together whether they're near or far! You can engage your whole class with this collaborative and fun Pythagorean Theorem activity while they learn from home, or together at school! What will the mystery mosaic be? Students do the math to find out! Watch the walk-through video for a quick product overview. Learn how to share it with students, and what teacher-powers you have as the owner of the file. MATH DETAILSStudents use the Pythagorean Theorem to solve for missing side
Preview of Santa & Reindeer Fraction Operations, Digital Google Mosaic (20- & 30-Students)

Santa & Reindeer Fraction Operations, Digital Google Mosaic (20- & 30-Students)

Created by
CalfordMath
Bring your class together this holiday season whether they're near or far! You may teach a fraction of your students virtually and the rest in person, but you can engage your class as whole with this collaborative, digital, and fun fractions activity! Watch the walk-through video!!◾ Get ALL my Christmas themed mosaics in one bundle for huge savings!Accountability meets collaboration for a highly motivating task! Students independently complete their set of 12 fractions problems (each set i
Preview of Collaborative Colour-by-Number Nutcracker, 24 Sheet Mosaic

Collaborative Colour-by-Number Nutcracker, 24 Sheet Mosaic

Created by
CalfordMath
Each student gets a small section of the large Nutcracker mosaic. They cut out their sections and combine them like magic to create a fun mural for your wall! This is a great before-the-break activity :) Numbers range from about 30 to 100 (positive whole numbers)
Preview of Sine & Cosine Law Collaborative Mosaic, Paper AND Google (Distance Learning)

Sine & Cosine Law Collaborative Mosaic, Paper AND Google (Distance Learning)

Created by
CalfordMath
Bring your class together whether they're near or far! You can engage your whole class with this collaborative and fun Oblique trigonometry activity while they learn from home, or together at school! What will the mystery mosaic be? Students do the math to find out! Watch the walk-through video for quick product overview. Learn how to share it with students, and what teacher-powers you have as the owner of the file. MATH DETAILSStudents use Sine and Cosine Laws to solve for a missing side
Preview of Multistep Linear Equations - Google Sheets Mosaic Battle (3 Class Sizes)

Multistep Linear Equations - Google Sheets Mosaic Battle (3 Class Sizes)

Created by
CalfordMath
Harness the motivating power of both collaboration and competition while holding students individually accountable!Watch the walk-through video for quick product overview. Learn how to share the file with students, and learn about the teacher-powers you'll have as the owner of the file. 3 Class Sizes Included!12 Students (6 vs 6)24 Students (12 vs 12)36 Students (18 vs 18)Whether you are teaching online, in a classroom, or in a blended learning situation, you can engage and unite all your stud
Preview of Factoring Quadratics, Google Sheets Mosaic (Distance Learning) Multiple Versions

Factoring Quadratics, Google Sheets Mosaic (Distance Learning) Multiple Versions

Created by
CalfordMath
Bring your class together whether they're near or far! You can engage your whole class with this collaborative and fun activity while they learn from home, or together at school! What will the mystery mosaic be? Students factor quadratic expressions to find out! Watch the quick walk-through video to see the digital version in action, learn how to share it with students, and find out what back-end teacher-powers you have. MATH DETAILSStudents factor a mixture of quadratic expressions (commo
Preview of Ratio Word Problems, Digital Google Sheets Mosaic (2 class sizes)

Ratio Word Problems, Digital Google Sheets Mosaic (2 class sizes)

Created by
CalfordMath
Harness the motivation of collaboration coupled with the assurance of individual accountability! Every student receives a different set of problems, yet each person's effort is needed to complete the class mosaic. Two class-sizes of the mosaic are included: An 18-student mosaic, and a 30-student version. Watch the walk-through video!!Learning and fun share a one-to-one ratio in this engaging activity! Students must solve the ratio application word problems to reveal pixels of their section of
Preview of Fraction Operations Turkey, Digital Google Mosaic (18- & 30-Sheet, 5 Versions)

Fraction Operations Turkey, Digital Google Mosaic (18- & 30-Sheet, 5 Versions)

Created by
CalfordMath
Bring your class together this Fall season whether they're near or far! You may teach a fraction of your students virtually and the rest in person, but you can engage your class as whole with this collaborative, digital, and fun fractions activity! Watch the walk-through video!!Accountability meets collaboration for a highly motivating task! Students independently complete their set of 12 fractions problems (each set is distinct), while collectively unveiling the mystery mosaic! Two class-
Preview of Order of Operations, Lion - Google Sheets Mosaic (Multiple Sizes and Versions!)

Order of Operations, Lion - Google Sheets Mosaic (Multiple Sizes and Versions!)

Created by
CalfordMath
Bring your class together whether they're near or far! You can engage your whole class with this collaborative and fun activity while they learn from home, or together at school! What will the mystery mosaic be? Students apply BEDMAS (a.k.a PEDMAS / Order of Operations) to find out! Watch the walk-through video!! Toggle between 4 problem sets to suit your needs!Basic (no division, exponents, or negative #’s)No exponents or negative #’s, but includes divisionAll operations, but no negative #’
Preview of Collaborative Google Sheets Mosaic - Christmas Freebie (9 Topics!)

Collaborative Google Sheets Mosaic - Christmas Freebie (9 Topics!)

Created by
CalfordMath
Merry Christmas!Engage your whole class DIGITALLY this Christmas in a collaborative pixel art & math challenge! This is a Google Sheets product that works well with distance learning, blended, or traditional classroom settings. The mosaic has 20 sections. Go ahead and book that computer lab or Chromebook cart and enjoy the no-prep, high-engagement, auto-grading beauty of this activity! See how this works in less than 5 minutes; Watch the full walkthrough!Basically, each student is responsi
Preview of aCUTE Mosaic Battle - Sine & Cosine Laws (Distance Learning, Google Sheets)

aCUTE Mosaic Battle - Sine & Cosine Laws (Distance Learning, Google Sheets)

Created by
CalfordMath
Harness the motivating power of both collaboration and competition while holding students individually accountable!Watch the walk-through video for quick product overview. Learn how to share the file with students, and learn about the teacher-powers you'll have as the owner of the file. 5 Class Sizes Included!12 Students (6 vs 6)20 Students (10 vs 10)24 Students (12 vs 12)30 Students (15 vs 15)36 Students (18 vs 18)Whether you are teaching online, in a classroom, or in a blended learning situat
Preview of Pumpkin Pi, 2-Step Equations Google Mosaic (3 Class Sizes, 5 Versions Each)

Pumpkin Pi, 2-Step Equations Google Mosaic (3 Class Sizes, 5 Versions Each)

Created by
CalfordMath
Bring your class together whether they're near or far! You can engage your whole class with this collaborative and fun activity while they learn from home, or together at school! What will the mystery mosaic be? Students will solve 12 two-step linear equations each to find out! Watch the quick walk-through video 3 Class Sizes Provided!16 Sheet Mosaic25 Sheet Mosaic32 Sheet Mosaic 5 Versions... you choose with the check of a box!Basic two-step: positive integers, same order Ax + B = CIntege
Preview of TVM Solver and Loan Payment Calculator - Google Sheets Version

TVM Solver and Loan Payment Calculator - Google Sheets Version

Created by
CalfordMath
This Google Sheets-based TVM Solver mimics the behavior of the familiar TI-84 calculator application. You can use all the same instructions you always do. Students simply leave the field they wish to solve for blank. I know how difficult it can be to get a good TVM solver into the hands of your students when they are working from home on a variety of devices. I also included a Loan Payment Calculator to determine the monthly, weekly, or biweekly payment, given the principal amount, annual inte
Preview of Collaborative Google Sheet Christmas Math Mosaic, Linear Equations, 25 Sections

Collaborative Google Sheet Christmas Math Mosaic, Linear Equations, 25 Sections

Created by
CalfordMath
Try a one-of-a-kind FUN holiday math activity with your class! Check out the product preview and video for a complete peek at what this involves. Your students will love seeing their hard work take shape like magic! Take the class to a computer lab, or 'book the Chromebook cart' and let this prep-free activity take the lead! It auto-grades the students' work too :) The mosaic is made up of 25 worksheets (tabs of the Google Sheet), each contributing a small section of the big picture. Each T
Preview of Colouring by Analytical Geometry -Goldfish (Slope, Length, Intercept, Perimeter)

Colouring by Analytical Geometry -Goldfish (Slope, Length, Intercept, Perimeter)

Created by
CalfordMath
Highly Engaging!! Each worksheet represents a small section of the big picture! The end result will look spectacular hanging up in your classroom :) CHECK OUT THE PRODUCT PREVIEW to see the range of problem types and know exactly what these worksheets involve! INVOLVES: -slope of the line through two points -length of a line segment given end points -perimeter of a triangle given coordinates of its vertices -determining the slope or y-intercept of a line given its standa
Preview of Telling Time, Reading an Analog Clock, Collaborative DIGITAL Mosaic

Telling Time, Reading an Analog Clock, Collaborative DIGITAL Mosaic

Created by
CalfordMath
You can engage your whole class with this fun and collaborative clock reading activity! This works great with distance or in-person learning! What will the mystery mosaic be? ONLY TIME WILL TELL! (hahaha) This 20-student Google Sheets mosaic can be toggled between 4 levels of difficulty!half-hour timesquarter-hourfive-minuteexact minuteStudents read the time from analog clocks and unlock pixels of the mystery mosaic by entering the correct answers. Every student has a different set of problems,
Preview of Proportions Puppy - Collaborative Google Sheets Mosaic (20 Students)

Proportions Puppy - Collaborative Google Sheets Mosaic (20 Students)

Created by
CalfordMath
Engage your whole class in a fun digital assignment that combines collaborative motivation with individual accountability. Check out this walk-through video for a quick overview of this task.Each student's problem set is different from the others, and contains 12 proportion questions. Half have a 'nice' vertical or horizontal multiplication constant of proportionality, and half lean toward cross multiplication giving a decimal answer. INCLUDED:.pdf with the ‘save a copy’ link and instruction
Preview of Google Sheets Math Mosaic BATTLE, Function Notation (Two 18-Sheet Mosaics)

Google Sheets Math Mosaic BATTLE, Function Notation (Two 18-Sheet Mosaics)

Created by
CalfordMath
Colouring tasks have gone digital for this distance learning era!This product includes three digital mosaic products. The Crimson Tide and Auburn Tigers pictures come as separate 36-sheet google sheet mosaics, and also in a brand new format I call "battle mosaics", where two 18-sheet mosaics are pitted side-by-side. To see how this product works, watch a related product video (math topic is factoring, but the product functions the same... pun intended) This product is a digitalized version
Preview of Colouring by Algebra - Linear Equations Pumpkin (15 worksheets)

Colouring by Algebra - Linear Equations Pumpkin (15 worksheets)

Created by
CalfordMath
I made this as a summative task for my small MFM1P class. Since my class is small, students can work in pairs on one sheet, then try a second independently. (Larger classes could make two pumpkins and have a colouring contest :) These whole-class colouring mosaics are quite engaging, and a good way to get even the most reluctant students to complete their homework (since the success of the picture hinges on each individual's contribution!). It's simple! 1. Calculate the answers. 2. Colour
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About the store

Experience

I've been a high school math educator since 2008, teaching all grades 9 through 12, and all levels from university and college bound to essentials/workplace to special needs learners. My products and ideas have been gilded by the frontlines of my own classroom experience. I'm always looking for an innovative way to teach the subject I love!

Teaching style

Whenever possible, math should be driven by engaging problems that pull students into the concepts and skills I seek to teach. 'Fruitfully frustrated' is a good place to be :) I enjoy writing and performing math raps (youtube CalfordMath), integrating Geometer's Sketchpad to bring dynamic understanding, gamifying learning (see my product 'Algebra Tile Factris'), and generally pushing creative limits to make math concepts accessible to my students. I am aware of students' math stigmas and horror stories. I try to build on their natural math intuitions, sidestepping their perceived inability to 'do math' because they never won a class game of around-the-world with multiplication flash cards in grade 4.

My own education history

Concurrent BSc (honours mathematics) / BEd (intermediate/senior) from Brock University, 2008 Honour Specialist in Mathematics from Queen's University, 2012 Additional Qualification in Computer Studies, 2023

Additional biographical information

I'm an avid recreational chess player. I enjoy music, skateboarding, longboarding, rapping, programming (see my product 'Algebra Tile Factirs' for a computer game example, or my 'Colouring by...' products for an automated worksheet product), and doing math for fun (total geek).