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I can’t believe that this is the 100th volume of Monday Must Reads! It seems like just yesterday that I had the idea to start highlighting the awesome math ideas I saw being shared on twitter here on my blog.

Of course, it feels like just yesterday that I decided to even start writing a math teaching blog. This is currently year 11 in the classroom for me, and I started blogging while I was still studying education at university.

I hope you find an idea or two worth trying out in your own classroom from this 100th edition of Monday Must Reads!

## Statistics Data Day

I love this idea shared by Mount Saint Charles School of having a “Data Day.”

## Organizing a Class Set of Calculators

Sarah Kolle shares a great teacher hack involving velcro to keep up with a class set of calculators.

## Random Grouping Cards

Looking to try out random grouping in your classroom? Check out these random grouping cards from Cononiah Watson.

## Truchet Cubes

I’m definitely adding these truchet cubes to my to-do list! Thanks to Mark Kaercher for the inspiration!

## Pay Rates for Introducing Exponential Growth

I really like how Trevor Chalmers takes the classic example of various pay rates for introducing exponential growth and pairs it with an excellent visual!

## Interactive Math Puzzle Bulletin Boards

Becky Lindenmuth inspires with some interactive math puzzle bulletin boards!

## Trigonometry Backwards Thinking Task

Mr. Canning shares a great backwards-thinking task for right triangle trig!

## Museum of Periodic Trends

I really like how Alison Locke structured this chemistry activity as having students create their own “museum.”

## Parabolic Curve Christmas Activity

Looking for a mathematical Christmas activity? Check out this project from STAHS Maths Staff.

## Reverse Shading Systems of Inequalities

Shading systems of inequalities? Check out this reverse-shading approach from David Butler!

Until next week, keep sharing your awesome math teaching ideas!