Interactive
CK-12 Foundation

Mutually Inclusive Events: Card Game

For Students 9th - 12th Standards
Find probabilities of pulling cards. Using a Venn diagram, individuals sort five cards along the rules of a game. The pupils calculate compound probabilities using the information from the diagram. Initially, the interactive provides the...
Interactive
CK-12 Foundation

Conditional Probability: Game Show with Monty

For Students 9th - 12th Standards
The car is behind door one — no wait, it is behind door three. An interactive allows learners to visualize the Monty Hall problem. Pupils work through the probabilities of choosing the car with their first pick. Next, they determine...
Interactive
CK-12 Foundation

Computing Probabilities for the Standard Normal Distribution: The FDA and Food Safety

For Students 9th - 12th Standards
To recall or not to recall, that is the question. Using provided data, pupils calculate the percent of people that may fall ill on average. The scholars determine the standard deviation based upon the mean and the empirical rule,...
Interactive
CK-12 Foundation

Direction on the Earth: Using a Compass

For Students 6th - 8th
Navigate the world of orienteering in an informative interactive. Earth science scholars learn practical direction skills, such as proper polar coordinates and pairing compasses with maps. The interactive map allows them to practice...
Interactive
CK-12 Foundation

Seafloor: Sonar Boats

For Students 9th - 12th
An interactive that teaches about sonar sure sounds like fun! Junior oceanographers study the uses of sonar, past and present, in an engaging interactive. The content demonstrates how sonar works, why sound waves are a great tool...
Interactive
CK-12 Foundation

Intrusive and Extrusive Igneous Rocks

For Students 6th - 12th
Check out a resource that's erupting with engaging material! Earth science scholars discover how igneous rocks form in a well-rounded interactive. They manipulate the cooling time of lava to watch crystals form, learn visual...
Interactive
CK-12 Foundation

Slope: Danger Mountain

For Students 8th - 10th
There's no danger in using an exciting resource. Pupils use an interactive to change the slope of a sledding path and see how the equation changes. They then apply information about safe slopes to see if their sledding paths are...
Interactive
CK-12 Foundation

Points that Partition Line Segments: Cutting a Log

For Students 9th - 12th
Teach ratios of line segments using an interactive approach. Scholars examine a line segment in the shape of a log and use their knowledge of ratios to divide it into various partitions. As an introductory lesson, the segment has a...
Interactive
CK-12 Foundation

Problem Solving Plan, Mental Math: The Perfect Lemonade 1

For Students 7th - 10th
Find the perfect amount of water for lemonade. Scholars solve the famous problem of measuring four liters of water using a three-liter container and a five-liter container. An interactive allows users to see each step of the solution.
Interactive
CK-12 Foundation

Conjectures and Counterexamples: An Extra Slice!

For Students 9th - 12th Standards
Class members will eat up an enticing interactive that lets users change the location of cuts made into a pizza to adjust the number of created slices. They create a counterexample for a conjecture on the number of slices.
Interactive
CK-12 Foundation

Latitude, Longitude, and Direction: Angle from the Equator

For Students 9th - 12th Standards
Which has the higher IQ, latitude or longitude? Longitude because it has 360 degrees! The interactive introduces the way latitude is measured and why it can never have more than 90 degrees. A handful of challenge questions encourage...
Interactive
CK-12 Foundation

Seasons: Shadow Lengths

For Students 6th - 8th
Before iPhones and calendars, how did humans determine the seasons of the year? Middle school scientists discover how to use shadows to determine the time of year in an enlightening interactive. Pupils manipulate the sun and examine the...
Interactive
CK-12 Foundation

Graphs for Discrete and for Continuous Data: Discrete vs. Continuous Data

For Students 7th - 12th
Not all data is the same. Using the interactive, pupils compare data represented in two different ways. The learners develop an understanding of the difference between discrete and continuous data and the different ways to represent each...
Interactive
CK-12 Foundation

Understand and Create Histograms: Histograms

For Students 6th - 10th Standards
Determine the shape of weight. Using the interactive, class members build a histogram displaying weight ranges collected in a P.E. class. Scholars describe the shape of the histogram and determine which measure of central tendency to use...
Interactive
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CK-12 Foundation

Introduction to Mean, Median, and Mode: The Tree Conundrum

For Students 6th - 8th Standards
How many trees should we plant? Using an interactive as a manipulative, individuals find the mean, median, and mode for sets of data. They determine the number of trees to plant in each plot of land to reach a statistical goal.
Interactive
CK-12 Foundation

Regular and Irregular Polygons: Polygon States

For Students 9th - 12th Standards
Colorado would probably object if Wyoming enlarged its borders. Scholars use an interactive map to change the borders of U.S. states to see how angles change. They then answer questions about regular and irregular polygons.
Interactive
CK-12 Foundation

Inverse Functions

For Students 11th - Higher Ed Standards
Provide a graphical view of inverses. Pupils manipulate points on a line and see the relationship of the graph with the graph of its inverse. Using the relationship between the graphs, scholars respond to questions concerning inverses...
Interactive
CK-12 Foundation

Parametric-Inverses: Graph Matching

For Students 11th - Higher Ed
Perform a switch to find the inverse of a parametric equation. Pupils match four parametric functions with the graph of the their inverses. Using the graphs, learners determine whether particular points are on the original parametric...
Interactive
CK-12 Foundation

Two-Dimensional Vectors: River Ferry and Current Vectors

For Students 11th - Higher Ed Standards
Fight against the current. Pupils explore the resulting path when they are crossing a river while being pushed downstream by the current. Using vector notation, learners express the speed and direction of a ferry. They finish by...
Interactive
CK-12 Foundation

Circles Centered at the Origin: Dog

For Students 11th - Higher Ed Standards
How many bones can a dog on a leash reach? Class members move a dog on the end of its leash and determine whether it can reach bones located at specific points. The learners see whether the bone lies on the circle or outside of the...
Interactive
CK-12 Foundation

Work and Force: Lifting a Bucket

For Students 11th - Higher Ed
How much work does it take to lift a bucket? An interactive presents a problem of lifting a bucket from the ground to the top of a building. Using their knowledge about work and integrals, pupils calculate the amount of work required to...
Interactive
CK-12 Foundation

Ellipses Centered at the Origin: Lithotripsy

For Students 11th - Higher Ed Standards
Investigate ellipses through the lens of medical applications. Pupils use a medical scenario to determine the equation of an ellipse. By using the interactive, learners determine the foci and major and minor axes of the ellipse that...
Lesson Plan
Curated OER

Geometry: Helix-a-Graph

For Teachers 9th - 12th
Students use geometry to create art. In this geometric graphing and patterns activity, students create a helix-a-graph by plotting points on a grid that follow a certain pattern and analyze the drawing they created.
Lesson Plan
Curated OER

Operations of Polynomials

For Teachers 9th - 10th
Students investigate the concept of manipulating polynomials. They go through the process of using algebra tiles in order to practice grouping of like terms and model the solving process.