It's About Time
Refraction of Light
Don't shine like a diamond, refract light like a diamond. Young scientists use an acrylic block and a laser light to observe refraction. Advanced scholars figure the sine of the angles of reflection and incidence as well as mastering...
Curated OER
Reflection and Refraction
Life is only a reflection of what we allow ourselves to see. The lesson includes three experiments on light reflection, light refraction, projection, lenses, and optical systems. Each experiment builds off the ones before and...
Las Cumbres Observatory
Craters in the Classroom
Laws of motion apply both in space and on Earth. Young experimenters model object impact on the Earth and moon. They use data to determine the effect mass and velocity have on the resulting craters and how that relates to the energy of...
DocsTeach
The Voting Record of the Constitution
A piece of the past helps shape the future. Learn what historical documents reveal about the past using an engaging activity. Academics participate in a role-playing scenario, view the voting record of the Constitutional...
Education Development Center
Word Problem with Rational Numbers—Balancing Bars of Soap
Here's a resource teachers won't want to wash their hands of. Given a task where a full bar of soap is on one side of a balance and 3/4 of a bar of soup and a 3/4-ounce weight is on the other side, young mathematicians must determine the...
Teach Engineering
When Silicon Talks
Explore Snell's Law using thin films. In the fifth installment of a seven-part series, pupils solve a set of problems relating to Snell's Law and use this skill during an experiment requiring the collection of reflective measurements...
Education Development Center
Sum of Rational and Irrational is Irrational
Sometimes the indirect path is best. Scholars determine whether the sum of a rational number and an irrational number is irrational. Reading a transcript of a conversation between classmates leads to an indirect proof of this concept.
Ziptales
The Pied Piper of Hamelin: The Mystery of the Children of Hamelin
Which is more likely: 130 children followed a magical piper out of Hamelin and disappeared forever, or that they died of the plague? Or could they have escaped from Hamelin via a secret tunnel to Transylvania? Learners investigate...
Leadership Challenge
Inspire Students Today to Make a Difference in the Future
Your search for a year's worth of leadership lessons is over! A lesson in a character education series provides a full two semesters of inspiring leadership activities. The resource includes individual and group challenges to ensure a...
Education Development Center
Making Sense of Unusual Results
Collaboration is the key for this equation-solving lesson. Learners solve a multi-step linear equation that requires using the distributive property. Within collaborative groups, scholars discuss multiple methods and troubleshoot mistakes.
Education Development Center
Extending Patterns with Exponents
Don't think negatively about exponents. Young mathematicians dissect a fictional conversation between pupils trying to evaluate an expression with a negative exponent. This allows them to understand the meaning of negative exponents.
Leadership Challenge
Mark Your Calendar
Do your actions reflect your values? Scholars examine their day-to-day activities versus their passions during the eighth installment in a series of 12 character-building lessons. After defining their values, participants create...
Education Development Center
Choosing Samples
What makes a good sample? Your classes collaborate to answer this question through a task involving areas of rectangles. Given a set of 100 rectangles, they sample a set of five rectangles to estimate the average area of the figures. The...
Education Development Center
Finding Parallelogram Vertices
Four is the perfect number—if you're talking about parallelograms. Scholars determine a possible fourth vertex of a parallelogram in the coordinate plane given the coordinates of three vertices. They read a conversation...
Teaching Tolerance
Journalism for Justice
Roll the presses! Or at least have your class members participate in the time-honored tradition of the student press by creating their own newspapers or journalist pieces on a social problem. After conducting research and collaborating...
National Nanotechnology Infrastructure Network
Size and Scale – Learning about Measurement
Can you visualize one billionth of a meter? It's not easy to understand the scale of a nanometer. Learners use a hands-on lesson to develop an understanding of the size of a nanometer in comparison to common objects. They walk away with...
Leadership Challenge
That's a Chop!: Developing Leadership Trough Teamwork
"The more trusted people feel, the better they innovate." To conclude a series of activities designed for a leadership seminar, participants engage in a trust building activity.
Education Development Center
Consecutive Sums
Evaluate patterns of numbers through an engaging task. Scholars work collaboratively to determine a general rule reflecting the sum of consecutive positive integers. Multiple patterns emerge as learners explore different arrangements.
Education Development Center
Adding Fractions with Unlike Denominators
If the fractions don't have a common denominator, make them have one. Learners first read and analyze a conversation of pupils trying to add 2/5 and 1/2. They compare the process of adding fractions to the process of adding quantities...
Southern Nevada Regional Professional Development Program
A Mini lesson on Semicolons
Dr. Martin Luther King, Jr.'s "Letter from Birmingham Jail" serves as an exemplar for a mini-lesson on semicolons. Working alone or in small groups, class members first circle all the semicolons in the letter, and then consider how this...
Great Books Foundation
Discussion Guide for Handmaid's Tale
Great literature discussions are a consequence of carefully crafted questions, interpretative questions that permit more than one response, and responses supported by specific evidence from the text. The discussion questions in a guide...
Center for the Advancement of Ethics and Character
Charlotte's Web: A Story About Friendship
Strengthen the bonds of friendship within your class with a reading of E.B. White's award-winning novel, Charlotte's Web. Focusing on the unique characters in the story and the relationships they develop, young readers draw...
National Council of Teachers of Mathematics
Eruptions: Old Faithful Geyser
How long do we have to wait? Given several days of times between eruptions of Old Faithful, learners create a graphical representation for two days. Groups combine their data to determine an appropriate wait time between eruptions.
Consulate General of Ireland
St. Patrick's Day - Lá Fhéile Pádraig
Youngsters use their imaginations and the story of St. Patrick to design original artwork for the holiday, by portraying where they think St. Patrick would have visited in the United States or illustrating what St. Patrick's Day...