CK-12 Foundation
Mean: Harmonic Mean
Let the means live in harmony. With lengths representing the values of a small data set, learners compare the arithmetic mean to the harmonic mean. The pupils determine which value is the most accurate representation of the average of...
Beyond Benign
Cookie Equations
Cookies and chemical equations have a lot in common! Using cookies as a reference, scholars learn to balance chemical equations. Pieces of the cookies represent different parts of the compounds and elements. This is the sixth installment...
Curriculum Corner
December Writing Journal
December writing activities galore! With everything from poetry to research to descriptive writing to writing about things that represent December, there's no way you will run out of options.
CK-12 Foundation
Circles Not Centered at the Origin: Room Rearranging
Where does a circular table fit best? Individuals move a circle representing a table into different quadrants of a room. Pupils determine which equation of the circle will place the table in the appropriate quadrant. A discussion...
CK-12 Foundation
Parametric Equations: Protecting the Village
Determine the location of the pillars in time. Given a table of values for two parametric equations, pupils complete the table to determine the location and time it takes to build the pillars. Learners plot the points representing...
Shodor Education Foundation
Function Machine
Machines can be so helpful sometimes. A simple interactive has learners enter input values for a function machine and observe output values. These values help determine a function that represents the input-output relationship in the...
Administrative Office of the US Courts
Elonis v. U.S.
With the explosion of social media sites, with online threats and cyber bullying, issues of freedom of speech have taken on a whole new aspect. Elonis v. U.S. represents the first time the Supreme Court has considered whether or not...
Colorado State University
Why Do Hurricanes Go Counterclockwise in the Northern Hemisphere?
Test your class' coordination as they model the Coriolis Effect. Forming a large circle, learners move to the right as they try to toss a ball to the person across from them. The movement of the circle represents the rotation of the...
Royal Society of Chemistry
Multiples of Units (16-19)
It's a parade of prefixes! Chemistry scholars identify common prefixes used throughout the sciences using an interactive puzzle series. Learners solve puzzles by pairing the prefixes with the power of ten they represent.
K20 LEARN
If Our Classroom Were The World: Proportions And Percents
It's a small world after all. Classmates consider world population, languages, and religions in a cross-curricular instructional activity. Applying percentages and proportions, they determine what the class make-up would be if the class...
Chemistry Collective
Osmotic Pressure: Spontaneous Balloon Popping
Visualize osmosis using an interactive activity. As learners monitor a simulation, they witness the particle movement through the membrane. A balloon represents the cellular membrane and 'pops' as osmosis creates an imbalance of...
101 Questions
How Many Hot Dogs?
Top off your hot dogs with a little math. Learners view a video on a hot dog eating contest, and then answer questions using estimation. Using a table of hypothetical data, they create algebraic expressions to represent the situation.
American Psychological Association
Using Psychological Perspectives to Answer Questions on Behavior
Perspective is everything when it comes to assessing human behavior. Class members examine a series of statements and identify the perspective represented by each to demonstrate their understanding of different psychological perspectives.
101 Questions
Leap the Jeep
Will harm come to the child in the video? Find out by modeling the scenario mathematically! Learners represent the situation with a quadratic model before deciding on a maximum height and time the person is in the air. Too low or not...
Kenan Fellows
Analyzing Speed from Different Modalities
Show us your moves. Using sensor equipment, scholars track the motion of different movements, such as jogging, skipping, or jump roping. They analyze velocity and acceleration and create graphs representing each movement.
Kenan Fellows
Climate Change Impacts
Turn up the heat! Young mathematicians develop models to represent different climates and collect temperature data. They analyze the data with regression and residual applications. Using that information, they make conclusions about...
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