Curated OER
Bias and Crime in Media
Critical thinking and social justice are central themes for this resource on bias and crime in media. The class views and discusses an incisive PSA that highlights assumptions based on race. Small groups read newspaper opinion pieces...
Illustrative Mathematics
Satellite
Learners practice relating rules of trigonometry and properties of circles. With a few simplifying assumptions such as a perfectly round earth, young mathematicians calculate the lengths of various paths between satellite and stations....
Illustrative Mathematics
How Many Cells Are in the Human Body?
Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some context to all...
Annenberg Foundation
Gothic Undercurrents
Terror, mystery, excitement. American writers of the 19th century, including Nathaniel Hawthorne, Herman Melville, and Emily Dickinson, used these elements to create morally ambiguous tales that challenged the prevailing belief in...
Teaching Tolerance
Using Photographs to Teach Social Justice | Supporting Social Border Crossings
A lunch-time activity encourages pupils to step out of their usual lunch bunch and connect with someone new. To begin, individuals examine a group photograph and identify what they believe is the gender, race, religion, and sexual...
Curated OER
First Impressions
Students discuss the importance of not making assumptions when only little information is known. With a partner, they complete a worksheet in which they only look at them to figure out what they like, etc. Next, they ask them the...
Curated OER
Applying Elasticity to the Real World
In this Applying Elasticity to the Real World worksheet, students read four scenarios, then decide if the assumption made is correct or wrong. They have to justify their answers.
Facing History and Ourselves
Identity and Labels
Scholars look at the connections between identity and labels, assumptions, and stereotypes, in a lesson that examines identity in the United States. To set the stage for a discussion of these connections, class members analyze a cartoon,...
Curated OER
Who Fought for the Confederacy?
Did the Confederate Army really consist of southern volunteers? Using primary sources, historians examine the story behind the "Twenty Negro Law" and realities of conscription during the Civil War. A letter and a lithograph (included as...
Curated OER
Fraction Follies
Explore the multiplication and division process for fractions with this interactive presentation. Through visual fraction problems, your math learners will uncover common assumptions and errors in computing fractions and how to avoid...
Curated OER
Sentence Completion 13: Low-Advanced SAT Level
It's an erroneous assumption that vocabulary practice must be tedious. Rather than a draconian approach, tantalize your learners with a sentence completion exercise that will enthrall them. A detailed answer key makes the seemingly...
Curated OER
Comparing Areas
Before your scholars know how to multiply side lengths to find an area, give them some practice in simply counting units. They examine shapes that have already been segmented into units, counting them to get the area. There are three...
Alabama Department of Archives and History
Alabama's 1901 Constitution: What Was at Stake?
Who should be able to vote? As part of a study of the 1901 Alabama Constitution, class members examine primary source document that reveal the reasons the authors gave to support their positions on this question and their assumptions in...
Carolina K-12
The Cold Within
“. . . one of the great challenges to humanity is acknowledging and overcoming a natural tendency to think less of and discriminate against people who are different from us . . .” Launch an examination of competition and cooperation, of...
Illustrative Mathematics
Longer and Heavier? Shorter and Heavier?
For many young children it seems obvious that longer objects are heavier than shorter objects. This assumption is put to the test as the class investigates the relationship between length and weight in a whole-group activity. Using a...
EngageNY
How Do Dilations Map Segments?
Do you view proofs as an essential geometric skill? The resource builds on an understanding of dilations by proving the Dilation Theorem of Segments. Pupils learn to question and verify rather than make assumptions.
NASA
Discovering Some of Your “Yardsticks” Are Actually “Meter-sticks”
The Milky Way gets great reviews on Trip Advisor — 100 million stars. The activity allows scholars to rethink their assumptions and prior knowledge. Pupils observe a set of two lights at equal distance and brightness, but they believe...
Curated OER
Mini-Lesson: Planning for Inferences
The five lessons in this resource are designed to teach class members how to read between the lines, how to use personal experience/background knowledge/schema, along with the information in the text, to make assumptions about what is...
Reading Through History
Ain't I a Woman?
Sojourner Truth’s “Ain’t I a Woman?” speech has reverberated through American history, giving voice to women of color who had not previously been heard. Learners analyze the tone, audience, purpose, occasion, and speaker of the speech’s...
Howard Hughes Medical Institute
Calculating Iridium Fallout from an Asteroid Impact
Should we be afraid of a large asteroid impact on Earth today? Young scientists estimate the size and composition of an asteroid similar to the one that caused the K-T mass extinction. They apply algebraic formulas to answer questions...
Facing History and Ourselves
Why Little Things Are Big
Often our decisions are impacted by a fear of how others see us. That's the big idea in a two-day lesson that asks how false assumptions, how our fear of how others may see us, impact how we act. After watching a video about such a...
Education Bureau of Hong Kong
Fundamentals
"Fundamentals," the first lesson in a series of eight, introduces the basic concepts and strategies covered in a series of resources designed to teach high schoolers critical thinking skills. The worksheets and activities in this first...
Facing History and Ourselves
Identity and Choices
Timshel! Thou mayest! is the big idea in a lesson that reminds learners that they have choices about how they present themselves to others. To begin, individuals rate the degree to which the choices they make each morning are influenced...
Curated OER
Read Between the Lines
Build comprehension, inference, and conclusion skills by encouraging learners to see the importance of reading between the lines.
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