Secondary 9 - 12

Recommended Reads To Supplement Your Professional Library:​


Recommended Concrete Materials:

Pattern Blocks

Cuisenaire Rods

Colour tiles

class set of white boards

Two-Sided Counters


Geo boards (10x10 circular, isometric)

3D shapes and nets


Algebra Tiles

Playing Cards

Loose parts

Numeracy Recommended links:


  • Free online graphing and scientific calculator to explore concepts more deeply, collaborate with their peers on problem-solving, and apply knowledge creatively as mathematicians.​


  • K – 12 Brain Science, Math Mindset, Visual Tasks and Number Talks and The Week of Inspirational Math. ​

  • Co-created by Jo Boaler.​

Peter Liljedahl

  • former high school mathematics teacher who has kept his research interest and activities close to the classroom​

  • mathematical problem solving; numeracy; and engaging student thinking​

Sara Van der Werf ​

  • High school math specialist blog with inspiring ideas and links.​

Graham Fletcher

  • Creator of Fascinating and Informative Math Progressions Videos and 3 Acts Lessons.​

  • 10+ years as a classroom teacher, Math coach, and a district Math specialist.​

Robert Kaplinsky

  • Cofounder of @openmiddle and author of Open Middle Math​

  • “I share math strategies and resources that create problem solvers, not robots.”​​

Steve Wyborney

  • Creator of SPLAT, Tiled Area Questions, Esti-Mysteries and Cube Connectors activities​

  • He is well known for his use of instructional technology and his work with mathematics ​

Janice Novakowski

  • Responsive teaching practices in Math and Science connected to the new BC curriculum​

  • SD38 K- 12 Math and Science Consultant ​


  • British Columbia Association of Math Teachers: A Provincial Specialist Association of the BC Teachers' Federation​

BC Numeracy Network

  • K-12 educators collaborating to inspire numeracy across the province through dynamic teaching and learning.​


High Yield Routines:

Peter Liljedahl's Good Problems

Collection of good problems that promote group problem solving and vertical surfaces​


Open Middle

Inspired by Dan Meyer, but carried through by some #MTBoS pioneers, dozens of K-12 tasks where students enjoy reasoning and making their thinking visible.​



Dozens of powerful number sense images from SteveWyborney, along with suggestions for using them on Steve's website.​

Hundreds of daily visual patterns to strengthen connections between  algebraic representations by Fawn Nguyen



Clothesline Math

Chris ShoreAndrew Stadel and Daniel Luevanos team up to put an amazing twist on the number line for secondary classroom, which Tim McCaffrey calls the "Master Number-Sense Maker". ​



Estimation 180

The most awesome bank of hundreds of estimation tasks for 3rd to 12th graders by Andrew Stadel ​



Fraction Talks

A sweet garden of visuals for Nat Banting to kick start discourse with Fraction-Geometry-Algebraic Thinking connections out the WAH-ZOO.​



Number Talk Images

Here's a great collection of images that will stimulate meaningful discourse.​



Same and Different

Lots of images to support students in developing the habit of comparing and connecting representations. ​



A Year of Warm-ups

Shannon Andrews put together a year's worth of daily warm-ups including Estimation180, Visual Patterns, WODB and Would You Rather in slides and handouts!​



Would You Rather?​

John Stevens' spin on the classic "would you rather" supporting constructing viable arguments and critiquing reasoning​



Which One Doesn't Belong

Daily K-12 tasks assembled by Mary Bourassa at




Sara Van der Werf’s compiled images of real-life math fails to get kids thinking.​



Slow Reveal Graphs

As more and more of the graph is revealed, students refine their interpretation and construct meaning, often in surprising ways.



What's Going On in This Graph?

Weekly graphs and visuals to read and analyze. ​



Highly engaging and popular math routine for practicing reasonable estimation, math vocabulary, and pattern recognition.


Turner's Graph of the Week

Each set of graphs comes with prompting questions for students to explore​