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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 Colour by Numbers in French - Eiffel Tower (4 Versions, 30-worksheets each)

Colour by Numbers in French - Eiffel Tower (4 Versions, 30-worksheets each)

Created by
CalfordMath
Build proficiency in your students' French number vocabulary with this fun collaborative colouring activity. It is different than other colour-by-number worksheets, since each student's worksheet represents only a small section of the large whole-class mosaic. The collaborative aspect of these worksheets will have THEM policing the homework completion. (Nobody wants to be responsible for the hole in the picture!) Paris and the Eiffel Tower are icons of French, and would certainly enhance you
Preview of Multiply Kindness! Collaborative Multiplication Pink Shirt Mosaic (6 Versions!)

Multiply Kindness! Collaborative Multiplication Pink Shirt Mosaic (6 Versions!)

Created by
CalfordMath
Let kindness multiply in your classroom as your students collaborate to create a large Pink Shirt Mosaic!Harness the motivating power of collaboration while maintaining individual accountability! Every student’s worksheet is different, so no one can copy yet students can help each other—a great way to build a positive math culture in your classroom! View the product preview to see a sample worksheet from each of the six versions included. How does this work? "Calculate + Colour + Cut + Combi
Preview of Holiday Bundle - Collaborative Colouring Math Mosaics

Holiday Bundle - Collaborative Colouring Math Mosaics

Created by
CalfordMath
All my holiday themed mosaics to date! (Well, excluding freebies... check out the Nativity Mosaic 12 version bundle for a free offering! Or my free Rap Retelling of the Christmas Story for a modern take on the timeless story!) Get so many great mosaics at such a steal of a deal you'll think you're the Grinch stealing Christmas! Includes some digital and some printable mosaics!For a product previews, please see the individual products It's simple!1. Calculate 2. Colour 3. Cut 4. Combin
Preview of Collaborative Math Mosaics - Christmas Bundle (now 12 Versions!!)

Collaborative Math Mosaics - Christmas Bundle (now 12 Versions!!)

Created by
CalfordMath
Merry Christmas!Engage your whole class this Christmas in a giant collaborative math colouring quest! This high-school take on "colour-by-number" style worksheets will have even your most reluctant students working to complete their assignments! For Christmas this year, I wanted to give you all something awesome! Compared to the amazing grace God showed the world when he sent his Son on that first Christmas, this giant free bundle is a very very small gift to help you and your students remembe
Preview of Colouring by Circle Area & Perimeter, Pi (25 Worksheet Mosaic)

Colouring by Circle Area & Perimeter, Pi (25 Worksheet Mosaic)

Created by
CalfordMath
Highly Engaging! Students work independently on their own worksheet, yet collaboratively create a whole-class Pi mosaic when the work is all done! Involves both diagram problems, and a variety of application word problems!Every worksheet has a unique set of problems, yet follows the same order of problem-type! You can confidently have students work together without cheating. Expect to hear good peer-to-peer math conversation and teaching. INCLUDED:• pdf and docx file versions of the class s
Preview of Color by Addition, Collaborative Flamingo Magic Mosaic! (36 Sheets, 4 Versions)

Color by Addition, Collaborative Flamingo Magic Mosaic! (36 Sheets, 4 Versions)

Created by
CalfordMath
Have SUM fun with addition!Harness the motivating power of collaboration while maintaining individual accountability! Every student’s worksheet is different! View the product preview to see a sample worksheet from each of the four versions included. How does this work? "Calculate + Colour + Cut + Combine!"Students each receive a 6-by-6 grid of addition problems. They use their answers to colour-by-number the squares. The grids are cut out and combined to collectively form a large whole-clas
Preview of Colouring by Money Amounts, Olympic Ring Mosaic (24 Sheets)

Colouring by Money Amounts, Olympic Ring Mosaic (24 Sheets)

Created by
CalfordMath
"Count, Colour, Cut & Combine!" Your WHOLE class will be ENGAGED in a coin counting colouring quest! Every student gets a different worksheet representing a small piece of the bigger picture. Students tally the total for each money amount shown (between $0.05 and $0.99) then use their answers to colour-by-number their section of the mystery mosaic. When the work is done, the coloured sheets are put together to reveal the large pixel Olympic Rings image. It will look great hanging up in the
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 Colouring by Money Amounts, Canadian & US Currency Versions (24 Sheet Mosaics)

Colouring by Money Amounts, Canadian & US Currency Versions (24 Sheet Mosaics)

Created by
CalfordMath
Check out the product preview to fully see how these awesome collaborative math mosaics works! "Count, Colour, Cut & Combine!" Your WHOLE class will be ENGAGED in an currency counting colouring quest! Every student gets a different worksheet representing a small piece of the bigger picture. Students tally the total for each money amount shown, then use their answers to colour-by-number their section of the pixel mystery mosaic. When the work is done, the coloured sheets are put together to
Preview of Collaborative Basic Math Mosaic, St. Patricks Day (Add & Subtract up to 20)

Collaborative Basic Math Mosaic, St. Patricks Day (Add & Subtract up to 20)

Created by
CalfordMath
I usually stick to high school topics, since this is what I teach, but I created a basic math mosaic for my own 5-year-old, and after seeing how motivated and engaged he was, I decided to make a collaborative colouring task for beginners too! I think this falls under the grade 1 curriculum (add and subtract numbers up to 20). 3 VERSIONS INCLUDED! (.pdf and .docx) All versions consist of 25 unique worksheets: ◾ Just Addition ◾ Just Subtraction ◾ Mixed Addition and Subtraction CHECK OUT THE PR
Preview of Collaborative Basic Math Mosaic, Horse (2 versions, 20 Sheets Each)

Collaborative Basic Math Mosaic, Horse (2 versions, 20 Sheets Each)

Created by
CalfordMath
2 VERSIONS INCLUDED! (both come in .pdf and editable .docx format) Each mosaic consists of 20 unique worksheets: ◾ Version 1: Just Addition & Subtraction of positive values under 20 ◾ Version 2: Some multiplication problems in the mix, all of which involve 2, 5 or 10 multiplied by a single digit number. CHECK OUT THE PRODUCT PREVIEW to see a sample of each version! Students solve the problems inside the squares, then colour the square according to the answer. Their sheets combine to create
Preview of Metric Measurement Code - Collaboratively Decode the Inspirational Quote

Metric Measurement Code - Collaboratively Decode the Inspirational Quote

Created by
CalfordMath
Students measure the zig-zagging line segments on their page to the nearest tenth of a cm (to the nearest mm), and use the code legend to decipher their worksheet's message based on the lengths. See the product preview for an example! Each of the 8 worksheets contributes part of the Francis Chan quote: "Our greatest fear should not be of failure but of succeeding at things in life that don’t really matter." The line segments on the worksheets actually print out to be the real-life size (printe
Preview of Colouring by Ratio Applications, Ladybug (15, 25, 30, and 36-Sheet Mosaics)

Colouring by Ratio Applications, Ladybug (15, 25, 30, and 36-Sheet Mosaics)

Created by
CalfordMath
Harness the motivation of collaboration coupled with the assurance of individual accountability! Every worksheet contains a different set of problems, yet all worksheets are needed to create the group mosaic.Learning and fun share a one-to-one ratio in this engaging activity! Students must solve the ratio application word problems, then use their answers to decode their colour-by-number grid. The individual sheets combine to create the ladybug mosaics. Four mosaic sizes are included to accomm
Preview of Colouring by Addition, Einstein Collaborative Math Mosaic (3 Versions)

Colouring by Addition, Einstein Collaborative Math Mosaic (3 Versions)

Created by
CalfordMath
Have SUM fun with addition! Harness the motivating power of collaboration while maintaining individual accountability! Every student’s worksheet is different! Students use their answers to colour-by-number their section of the larger whole-class mosaic! The end result looks great on your wall, and your students will be proud! IT’S SIMPLE! 1. Calculate the answers. 2. Colour the squares. 3. Cut out your section. 4. Combine with the class! INCLUDED: ◾ Both.pdf and editable .docx format
Preview of Coloring by Fractions - Donald Trump vs Hillary Clinton (Two 20-Sheet Mosaics)

Coloring by Fractions - Donald Trump vs Hillary Clinton (Two 20-Sheet Mosaics)

Created by
CalfordMath
A highly engaging way for your students to practice their fraction operations! Your students will each work independently on their own unique worksheet, then combine their work to create the Trump or Clinton (you get both 20-sheet mosaics!). Individual accountability is ensured, while collaborative motivation provides a powerful push to complete the work! INCLUDED: ◾Editable .docx, and .pdf files of everything ◾Two 20-Sheet class sets (Trump and Clinton) ◾Each sheet contains 12 fraction prob
Preview of Fractions of the Earth, Collaborative Math Mosaic (2 Versions, 25 Sheet Mosaics)

Fractions of the Earth, Collaborative Math Mosaic (2 Versions, 25 Sheet Mosaics)

Created by
CalfordMath
A highly engaging way for your students to practice their fraction operations! Your students will each work independently on their own unique worksheet, then combine their work to create the Earth mosaic! Individual accountability is ensured, while collaborative motivation provides a powerful push to complete the work! INCLUDED: ◾Editable .docx and .pdf files of everything ◾Two 25-Sheet class sets (regular and light versions) ◾Regular version contains 36 fraction problems per worksheet, with
Preview of Colouring by Ratios, Wiseman (25 Sheet Collaborative Math Mosaic)

Colouring by Ratios, Wiseman (25 Sheet Collaborative Math Mosaic)

Created by
CalfordMath
Enjoy this FREE seasonal math mosaic :) Merry Christmas! An engaging seasonal activity where learning and fun share a one-to-one ratio! Every student has a different set of problems to which the answers decode their colour-by-number grid. The individual sheets combine to create the whole-class Wiseman mosaic! The result will seem magical, and look fantastic in your classroom :) This product includes 25 worksheets, each unique! Great for a variety of grades!INCLUDED: (in both .docx and .pd
Preview of Telling Time Turtle, Reading a Clock Collaborative Mosaic (multiple sizes)

Telling Time Turtle, Reading a Clock Collaborative Mosaic (multiple sizes)

Created by
CalfordMath
You can engage your whole class with this fun and collaborative clock reading activity! What will the mystery mosaic be? ONLY TIME WILL TELL! (hahaha) Students read the time from analog clocks, accurate the the minute, then use their answers to colour-by-number their section of the big mosaic. Every student has a different set of problems, so no copying is possible. Every student's worksheet is needed to create the mosaic, so everyone is accountable! Check out the product preview to see how t
Preview of Colouring by Ratios, Christmas Themed Word Problems (Collaborative Mosaic)

Colouring by Ratios, Christmas Themed Word Problems (Collaborative Mosaic)

Created by
CalfordMath
An engaging seasonal activity where learning and fun share a one-to-one ratio! Every student has a different set of problems. The answers decode their colour-by-number grid. The individual sheets combine to create the whole-class Polar Bear Mosaic! The result will seem magical, and look fantastic in your classroom :) There are 30 sections (worksheets) to this mosaic. Great for a variety of grades!INCLUDED: (in both .pdf and editable .docx format) ◾ Full class sets of 30 worksheets (all dif
Preview of Color by Subtraction, Collaborative Monkey Magic Mosaic! (16 Sheets, 3 Versions)

Color by Subtraction, Collaborative Monkey Magic Mosaic! (16 Sheets, 3 Versions)

Created by
CalfordMath
Great worksheets make a DIFFERENCE!Harness the motivating power of collaboration while maintaining individual accountability! Every student’s worksheet is different! View the product preview to see a sample worksheet from each of the three versions included. How does this work? "Calculate + Colour + Cut + Combine!"The mosaic consists of 16 sections (4 by 4). Students each receive a 5-by-5 grid of subtraction problems. They use their answers to colour-by-number the squares. The grids are cu
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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).