The inspiration for this site came from John Allen Paulos' book Innumeracy. From it Fawn Nguyen took the mathematical fun facts, etc. and created middle school mathematics critical thinking problems that relate to ratios and proportional reasoning and require students to compare stuff and really get them thinking.

Here's an example:
Tortoises have the longest lifespan among vertebrates, about 200 years.

A fruit fly's lifespan is about 45 days.
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If we scaled both lifespans down so that a tortoise's 200 years is now 1 day, then what is the fruit fly's lifespan, in seconds?

A series of pamphlets has been developed with the goal of supporting parents and caregivers as they promote positive math thinking in the home. The printable pamphlets, developed in collaboration with sector partners, also provide an overview of what students will be taught in school in each of grades 1-9, based on Saskatchewan curricula.

Excellent Interactive Lessons AND Assessments for All Levels of Math for Teachers and Students

Codesters combines a fun online coding platform for students, a powerful learning management system for teachers, and built-out coding lessons so you can start teaching kids to code in your school today.

This website has various video challenges with accompanying PDF's for student use . Students are able to post their own videos of how they solved the challenge, and take a look at how others solved it as well.

The purpose of this lesson is to analyze a graph of a linear relation.

Included is a YouTube video to support Grade 9 Blended Learning Math - Unit 4.2: Linear Relations- Linear Relations.

The purpose of this lesson is to recognize the equations of vertical, horizontal and oblique lines.

Included is a YouTube video to support Grade 9 Blended Learning Math - Unit 4.3: Linear Relations- Another Form of the Equation for a Linear Relation.

The purpose of this lesson is to match equations and graphs.

Included is a YouTube video to support Grade 9 Blended Learning Math - Unit 4.4: Linear Relations - Matching Equations and Graphs.

The purpose of this lesson is to use interpolation and extrapolation to estimate values on a graph.

Included is a YouTube video to support Grade 9 Blended Learning Math - Unit 4.5: Linear Relations - Using Graphs to Estimate Values.

Desmos now has way more than just a graphing calculator (which is pretty great too!).

You can now access student or teacher accounts for free and find interactive lessons for online and classroom learning for Grade 6-12+ Math.

Topics include linear equations, 3D models, quadratic equation, exponential functions, problem solving, real world application, linear functions, etc.

Engaging activities include pizza maker, marble mini golf, scaling machines & much more!

Once you're comfortable, you can even make your own activities!

Desmos has great interactive graphing interactive activities you can use with your students for free!

Great for graphing and coordinate planes!

Explore Learning offers 3 programs to support students learning at home:

Gizmos (Grades 3-12) Get hands-on with math and science.
Gizmos are online simulations that excite curiosity and invite interaction. We’ve got over 400 Gizmos in our library covering topics and concepts in math and science for grades 3-12. Gizmos help students dig deeper into subjects and really understand challenging concepts.

Reflex (Grades 2-6) When they use Reflex, kids love math.
Adaptive and individualized, Reflex is the most effective system for mastering basic math facts in addition, subtraction, multiplication and division.
Full of games that students love, Reflex takes students at every level and helps them quickly gain math fact fluency and confidence. And educators and parents love the powerful reporting that allows them to monitor progress and celebrate success.

Science4Us (Grades K-2) It’s never too early to learn science!
Science4Us covers Inquiry, Physical Science, Life Science and Earth & Space Science with lessons specifically designed for K-2 students. The sessions have 1000’s of online and offline activities that can be completed in as little as ten minutes, and teach students using videos, interaction, poems, songs, and digital notebooks.

This site offers 4 free math activities to assist students with increasing their fluency in operations with rational number and algebraic equations. The activities include:
Activity 7.7: "Would You Rather..." Routine
There are two versions of this routine with systems of linear equations—choosing different strategies (e.g., Use Tables or Use Graphs) and making choices within a strategy (e.g., For which variable will I substitute? Or Which variables will I eliminate?).
Activity 6.10: The Transformer Game
This game is a fun way to give students opportunities to choose and use different basic transformations to start solving equations.
Activity 5.7: Worked Examples For Ratios and Proportions
Use this activity for worked examples for ratios and proportions. Correctly worked examples and partially solved worked examples benefit students so that they can understand strategy.
ACTIVITY 4.11: Quotient Connect Game
This game is an engaging way to practice division using Partial Quotients. It is played similarly to the classic board game Boggle as students find quotients through connected digits.

Math-Drills.com includes over 50 thousand free math worksheets that may be used to help students learn math.

Give a 5 question mixed review quiz to students every Friday.The questions can focus on current learning, but should also include questions from the entire year (especially concepts needed for next week's lessons, or foundational items that need to be mastered). This strategy will help develop mastery, provide opportunities for mixed practice to ensure comprehension beyond specific learning content.  

MathScore helps students acquire a deep understanding of math by providing adaptive math practice that functions like self-guided lessons. MathScore is fun and improves math confidence and grittiness. For any important math concept, we help students achieve mastery in 3 phases:
1. Develop relatable, definition-level understanding:
2. Develop computational excellence: Using adaptive techniques, we efficiently develop strong computational skills.
3. Develop analytical understanding.

The National Hockey League (NHL) and the National Hockey League Players’ Association (NHLPA) have partnered to launch the Future Goals program, a North-American initiative that provides K-12 students with STEM education. EVERFI’s Hockey Scholar course, with both a math and science edition, leverages highly interactive gameplay and the sport of hockey to reinforce key concepts like scientific thinking and data analysis, exposing students to foundational STEM concepts through real-life applications.
This Course Covers Foundational STEM Concepts Scientific Thinking,Data/Graphical Analysis

Uncover The Ice - Students derive area formula and proper units of measurement to calculate the area of each section of ice as they remove covering.
Area, units, unit square, square meters, formula 4 SS4.2 5 SS5.1-4 6 SS6.2 7 SS7.2 8 SS8.2-3

Paint The Ice - Students apply knowledge of geometric figures and coordinate planes to paint the ice rink. Point, coordinate, x/y-axis, line, chord, segment, parallel, right angle, congruent perpendicular, diameter, radius5 SS5.5 6 SS6.3-47 SS7.1-5

The Pass - Students measure and find patterns between angles lying on a straight line, by setting up a pass that bounces off the boards and discover the Law of Reflection based on their data. Protractor, degrees, right angle, straight angles, Law of Reflection, adjacent angles 6 SS6.1, SS6.3 7 SS7.1, SS7.3 8 OP8.1

The Shot - Students explore the interaction between applied force and frictional force and use this knowledge to hit specific targets on the ice.
Force, magnitude, direction, friction, Newton’s 1st Law 5 FM5.1-3 6 FL6.2

Speed - Students record and calculate a player’s average speed (using d = v/t formula) over short and long sprint distances Rate, units of distance (m, km, mi), trials, average, rounding, formula 5 SP5.3 6 SP6.1, N6.8 7 SP7.1-2 8 P8.1, N8.3

The Skate Blades - Students help players stop on a certain target based on the radius of hollow of their skate blades, and use this data to figure out the correlation between radius of hollow and stopping distance. Variables, radius, correlation 5 P5.1, FM5.1 6 P6.1, P6.3, FL6.3 7 P7.1, SS7.2, SP7.2 8 P8.1

Give students the graphing template.
Play any of the videos.
Have students graph the story!

Types of graphing includes: constant, decreasing, increasing, linear, parabolic, periodic, piecewise, step.