What's the rule that makes it true?  A virtual function machine generates output values as learners submit the input values. Their job is to analyze the inputs and outputs for a pattern and write a function rule.

Does the value exist? The interactive allows pupils to visualize the Intermediate Value Theorem. Using the visualization, individuals respond to questions using specific values and general values. The class comes to the conclusion what...

Mislabeled bottles can cause a dangerous situation! Young chemists design a method for determining the true contents of a solution in a virtual lab activity. Their study of density helps them identify the makeup of the solution.

Who is more trustworthy when it comes to marijuana: a high school student, or The National Institute on Drug Abuse? Sources matter when reading informational text. Help teenagers discern which facts are true with an activity that focuses...

Cell size is limited by the surface area to volume ratio, but why is this true? Scholars measure the surface area and volume of cubes before placing them into liquid. After a set amount of time, they measure the uptake by diffusion for...

If it's on the Internet, it must be true ... right? Introduce young Internet explorers to the importance of fact-checking through a fun web-based activity. Pairs work together to read and analyze biographies about world explorers, then...

Dig deep into a lesson studying volume. Learners view images of a Guatemalan sinkhole that seems too big to be true! Their task is to determine the amount of material needed to fill the hole using information from news articles and videos.

Throughout history, newspapers have reported the events of the day as they unfolded. Using primary and secondary sources from World War I, scholars uncover how the American people learned of the events of the War to End All Wars. History...

How many body parts can you identify in Spanish? Is pelo the word for hair or finger? Match Spanish vocabulary focused on body parts with a series of word puzzles, true-or-false questions, and a funny comic strip.

All teacher workrooms contain a coffee maker, therefore all teachers must be addicted to coffee. That sentence represents a logical fallacy (although it may be true from some), a topic the seventh installment in the 24-part Writing the...

Profit always seems to get everyone's attention. The same is true during a lesson on estimation. Learners use given information to estimate the cost of supplies for a painting job. They then develop a strategy for estimating the...

Is your job a dream come true? Career seekers research to discover what their ideal jobs might be in the second of five career and college readiness lessons for sixth graders. After determining their occupational clusters, individuals...

What does a true American represent? Scholars investigate the equal rights era of the 1960s and 1970s in the 20th installment of a 22-part series on American history. Using photographic, magazine, written, and video evidence, groups...

Can history distort the true story behind famous people? Scholars analyze the many faces of the Native American Pocahontas. Incorporating technology and historical thinking skills, they uncover the many different sides to the Pocahontas...

It's just not enough to know that something is true. Part of a MVP Geometry unit teaches young mathematicians how to write flow proofs and two-column proofs for conjectures involving lines, angles, and triangles.

What are some of life's most tried-and-true lessons? Pupils listen to examples from the book Live and Learn and Pass It On by H. Jackson Brown, Jr. They write down their own life lessons to later compile in a class booklet. As...

Are outer planets just like inner planets? Nope! The outer planets are much more spread apart than the inner planets. An informative PowerPoint presentation shows why this is true as well as facts about the individual planets in the...

Don't compromise the identity. Given pairs of equations, scholars determine whether the equations are true for the same set of values. They explain their reasoning, considering whether it's possible to combine the equations into an...

What do the Cold War and the Space Race have in common? Learners search for that answer and many more, helping them to build their knowledge of historical global politics and tensions between nations. Following the reading, they answer...

If it's true that preparation is the key to success, the English Language Arts Examination handout should help pupils ace their exams. Scholars read several texts and answer multiple-choice questions. Then, they write source-based...

They say when you are told something enough times, you eventually begin to believe it's true. Sadly, Max in Freak The Mighty believed he was stupid and dumb, so he learned to be alone. That changed when he met another outcast, Freak....

A true friend sticks with you through thick and thin. Marlee and Liz, main characters in The Lions of Little Rock, have that type of friendship. Scholars learn vocabulary and answer comprehension questions as they read how the two girls...

Heroes appear in unexpected places. This is true about Hiccup, a character in How to Train Your Dragon. Scholars use a novel study to learn how a useless and weak dragon reveals his brilliance. The resource includes 10 new vocabulary...

Low unemployment is an indicator of a healthy economy—right? Current employment data and research leads scholars on a quest to find the true health of the economy. They analyze research on Payroll Employment Data and watch a short video...