This simple-looking problem reveals much about how well students understand unit fractions as well as representing fractions on a number line.

In this activity students will learn the basic concept of Global Positioning Systems (GPS) using triangulation and measurement on a small scale in the classroom. Students discover how GPS and navigation integrate mathematic and scientific concepts to create a standard for locating people and objects. This activity helps students understand both the need for and methods of navigation.

This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting - missing operation.

The purpose of this task is to have students work on a sequence of area problems that shows the advantage of increasingly abstract strategies in preparation for developing general area formulas for parallelograms and triangles.

This task asks students to find and use two different common denominators to add the given fractions. The purpose of this question is to help students realize that they can use any common denominator to find a solution, not just the least common denominator.

This task asks students to use two different denominators to subtract fractions. The purpose of this is to help students realize that any common denominator will work, not just the least common denominator.

This resource explores four ways to find or create free or Creative Commons images to use for your OER/Resource Bank resources (or in general).Specific sites for free imagesGoogle searchAI Snipping Tool 

In this activity, the students will investigate a variety of plants and animals common to the Amazon through research. They will determine the plant or animal characteristics that make them edible or useful for the trip and learn to categorize them by comparing similarities and/or differences.

The following is a collection of Happiness Webinars given during school closures on how we can find happiness in these crazy times!

This short video and interactive assessment activity is designed to teach third graders about finding least common multiples (lcm).

In this task students have the opportunity to construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table).

Using various reading strategies and resources, students explore the issue of food waste. They also create persuasive arguments and blog posts examining this topic.

This short video and interactive assessment activity is designed to teach fourth graders about finding time using multiple steps - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about finding the total distance between two objects.

"Chelsea grew up on a mixed grain and dairy farm west of Winnipeg, Manitoba. Her dad and uncle manage the farm, and all the kids help out where they can. The busy family is all too familiar with the stress and anxiety that is created when you work where you live and there is a never-ending list of jobs to be done. At the age of 46 Chelsea's dad, Rob, suffered a heart attack brought on by the stresses of farming, and it took that life-threatening event for the family to realize something had to change.

According to research conducted by the University of Guelph 45% of Canadian farmers are classified as living under high-stress conditions and 58% met the criteria for anxiety classification. Thankfully organizations like the Do More Agriculture Foundation are bringing awareness to the fact that farmers, like all Canadians, need to be empowered and supported to take care of their mental wellness."

This real world problem is appropriate for mental mathematics and students should be encouraged to think through the solution mentally.