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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Pie Chart / Circle Graph - Simple Template
Pie graphs can be tricky to make by hand when the sections aren't easy fractions of the pie. This simple template gives a circle marked off with 100 'tick lines' for easy graphing of percentages of the whole pie. A second template using dots is included too. A dot in the centre of the circle is included too, making it easy to use a ruler and draw lines out to the edge.
It's a .docx (Word) file containing two images. Feel free to copy, paste, modify, distribute, embed...
~CalfordMath
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For All Subjects, Graphing, Math
Factoring Quadratic Expressions, 30-Sheet Collaborative Math Mosaic
Highly Engaging!! Students practice common factoring, simple and complex trinomial factoring, perfect squares and difference of squares factoring to decode the colour key needed to colour their section of the large 30-section pirate ship mosaic. Every student has a different worksheet, ensuring individual accountability while allowing students to help each other and engage in great math dialog. The end result will look spectacular hanging up in your classroom :) This makes a great unit summa
9th - 12th
Algebra, Math Test Prep, Other (Math)
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Equation of a Line - Matching Puzzle (Standard Form and Slope Intercept Form)
Every puzzle forms a different 12-letter word! Thirty versions are included to outfit your whole class. It could be fun to have students use their word in a sentence to prove they've finished.Students cut out all the squares on their pre-scrambled sheet Students piece together the squares to make a 3 by 4 rectangle so that all touching edges form a matching pair of Standard Form (Ax + Bx + C = 0) and Slope-Intercept Form (y = mx + b) equations.Correct puzzles will form one of the thirty 12-let
8th - 10th
Algebra, Math Test Prep
CCSS
8.EE.B.6
, 8.F.A.2
Factoring Quadratic Expressions _ American Flag, 25-Sheet Collaborative Mosaic
Highly Engaging!! Students practice common factoring, simple and complex trinomial factoring, perfect squares and difference of squares factoring to decode the color key needed to color their section of the large 25-section American Flag mosaic. Every student has a different worksheet, ensuring individual accountability while allowing students to help each other and engage in great math dialog. The end result will look spectacular hanging up in your classroom or on display for a special day,
9th - 12th
Algebra, Math Test Prep, Other (Math)
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Collaborative Colour-by-Number Nutcracker, 24 Sheet Mosaic
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)
K - 2nd
Numbers, Visual Arts
Also included in: Holiday Bundle - Collaborative Colouring Math Mosaics
Colouring by One and Two Step Equations - Remembrance Day (25-Worksheet Mosaic)
Help students to Remember this November as they collaboratively complete the Poppy mosaic. Each student's 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!
Also check out the Remembrance Day Poppy mosaic in a :
more basic colour-by-number and number range bundle (5 versions) .
Students solve 1 and 2-step
7th - 9th
Algebra, Math
Factoring Quadratic Expressions, πrate, 30-Sheet Collaborative Math Mosaic
Highly Engaging!! Students practice common factoring, simple and complex trinomial factoring, perfect squares and difference of squares factoring to decode the colour key needed to colour their section of the large 30-section πrate (Pi-rate) mosaic. Every student has a different worksheet, ensuring individual accountability while allowing students to help each other and engage in great math dialog. The end result will look spectacular hanging up in your classroom :) This makes a great unit
9th - 12th
Algebra, Math Test Prep, Other (Math)
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Metric Measurement Code - Collaboratively Decode the Inspirational Quote
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
2nd - 10th
Math, Measurement
CCSS
2.MD.A.1
, 2.MD.A.3
Colour by Number & Range - Remembrance Day Poppy, Math Mosaic (5 Versions!)
Help students Remember this November as they collaboratively colour their sections of the class mosaic, then piece together their work to reveal the large mosaic image. Students gain practice placing numbers within an interval given using inequality symbols. The lower bound is inclusive while the upper bound is exclusive. Five versions are included in this bundle:• Number (basic colour-by-number style, positive values under 100) • Positive Number Ranges (positive range assigned to each colour)
K - 9th
Numbers, Place Value
CCSS
K.NBT.A.1
, 5.NBT.A.3
, 4.NF.C.7
Factoring Simple Tri-GNOME-ials (x²+bx+c) Collaborative Mosaic
Highly Engaging!! Students get lots of practice factoring simple quadratic trinomial expressions, then use the colour key to colour their section of the large 16-section holiday gnome mosaic. Every student has a different worksheet, ensuring individual accountability while allowing students to help each other and engage in great math dialog. The end result will look spectacular hanging up in your classroom :) INCLUDED: (in both .docx and .pdf format) ◾ Class set of 16 worksheets (all diffe
9th - 11th
Algebra, Math Test Prep, Other (Math)
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Colouring by Ratio Applications, Ladybug (15, 25, 30, and 36-Sheet Mosaics)
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
5th - 10th
Algebra, Math, Other (Math)
Colouring by Ratios, Wiseman (25 Sheet Collaborative Math Mosaic)
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
5th - 10th
Algebra, Other (Math)
CCSS
6.RP.A.1
, 6.RP.A.3
Factoring Quadratic Expressions _ POW! 25-Sheet Collaborative Math Mosaic
Highly Engaging!! Students practice common factoring, simple and complex trinomial factoring, perfect squares and difference of squares factoring to decode the colour key needed to colour their section of the large 25 -section POW! mosaic. Every student has a different worksheet, ensuring individual accountability while allowing students to help each other and engage in great math dialog. The end result will look spectacular hanging up in your classroom :) This makes a great unit summary, te
9th - 12th
Algebra, Math Test Prep, Other (Math)
CCSS
HSA-REI.B.4
, HSA-REI.B.4b
Colouring by Ratios, Christmas Themed Word Problems (Collaborative Mosaic)
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
5th - 10th
Algebra, Other (Math)
CCSS
6.RP.A.1
, 6.RP.A.3
Also included in: Holiday Bundle - Collaborative Colouring Math Mosaics
Imperial Measurement Code - 16th of an Inch, 12 Corny Joke Worksheets!
Students measure the line segments to the nearest 16th of an inch and use the code legend to decipher the punchline to the corny joke on their worksheet. Each of the 12 worksheets is different, so you don't need to worry about students simply copying the answer. The line segments on the worksheets actually print out to be the real-life size (print letter size: 8.5x11 format). Since each page is different, this activity provides individual accountability while allowing students to help each ot
2nd - 10th
Math, Measurement
CCSS
2.MD.A.1
, 2.MD.A.3
Canadian Coins Sum Search (Printable and Digitalized)
Just like a word search but coin sums! Students will be challenged to find all 15 sums, and further challenged to find all occurrences of the sums! There are 15 different worksheets included and 3 levels of difficulty (5 worksheets for each) There is also an American Coins version. Level 1 - one coin per square Level 2 - up to two coins per square Level 3 - up to 3 coins per square. You can choose to hand out different sheets so students have a version different than their neighbour, or give e
1st - 10th
Math, Mental Math
American Coins Sum Search (Printable and Digitalized)
Just like a word search but coin sums! Students will be challenged to find all 15 sums, and further challenged to find all occurrences of the sums! There are 15 different worksheets included and 3 levels of difficulty (5 worksheets for each) Level 1 - one coin per square Level 2 - up to two coins per square Level 3 - up to 3 coins per square. You can choose to hand out different sheets so students have a version different than their neighbour, or give everyone the same version to encourag
2nd - 10th
Math, Mental Math
CCSS, TEKS
2.MD.C.8
, MA.2.5.A
, MA.2.5.B
Slope Midpoint Length & Special Triangle Lines - FOLDABLE activity
Make the formulas memorable with a simple-to-create foldable that students can look back to in their notes. My grade 10 academic math class (MPM2D) found these very handy during the analytic geometry unit.
While the formulas for a line segment's slope, length, and midpoint should definitely be discovered/motivated by discussing rise and run, applying the Pythagorean Theorem etc., students still have some trouble keeping straight when to add and when to subtract coordinates.
Your academics w
9th - 10th
Geometry, Math
CCSS
HSG-GPE.B.5
, HSG-GPE.B.6
Showing 1-18 of 18 results
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).
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