Percents Teacher Resources

The United States consumes more oil than any other country, and its residents use 50 percent of that for transportation. Scholars match eight fractions of crude oil to their applications. Then, they fill in three logic puzzles reviewing...

Polluted air contains more than 200 chemicals that age the skin, causing urban women to appear 10 percent older than their rural peers. An interesting interactive connects air pollutants and related data. Scholars work their way through...

Imagine living in a neighborhood where the houses on your street keep moving farther away until your house is the only one in the reachable vicinity. That's what is happening in our universe, except your house is our galaxy, and the...

Arsenic in drinking water is a common problem in third world countries. Young chemists create a procedure to calculate the mass percent of arsenic in the soil. The virtual lab allows individuals to experiment with different methods.

Looking for a fresh take on traditional food/energy pyramids? Conduct an innovative activity where pupils build their own! The lesson uses research data from Gorongosa National Park in Mozambique for a real-life safari touch. Scholars...

Eight percent of DNA comes from retroviruses. Learn what sets retroviruses apart from other types of viruses with an presentation that focuses on the differences between viruses with a DNA genome, an RNA genome, and retroviruses. 

45 percent of all raptors migrate, but they don't follow the paths of other migrating birds. An extensive Seasonal Science series introduces the unique migration process of raptors. The narrator explains the extremely small migration...

Bring on the coffee—it's dissertation time! As a handout on dissertations explains, over 50 percent of PhD candidates never finish their dissertations. The handout, part of a larger series on specific writing styles, helps motivate...

Your car's engine is likely to be only 20 percent thermally efficient. Why so inefficient? Viewers of the 10th video in an engineering series learn how the second law of thermodynamics and entropy limit the efficiency of a car engine....

Be confident about your ability to understand statistics. The 20th installment of the Crash Course Statistics playlist, the informative YouTube video describes the meaning of confidence intervals and how they relate to normal...

Around 80 percent of the nitrogen in plants living in coastal forests comes from decaying fish. Viewers learn how salmon encourage the growth of forests with a scientific video that highlights interdependence, ecosystems, and the...

Not pi, but pie! A video instructor explains how to read and interpret a pie chart. The lesson shows the best way to identify the part of the population in each section of the pie using fractions and/or percents.

Less than 30 percent of those diagnosed with acute myeloid leukemia live for five years. One researcher shares a breakthrough in treatment for this specific type of cancer. He explains how it spreads and how the medication prevents the...

Switching indoor water fixtures to low flow reduces water usage by more than 45 percent. This and other solutions to reduce water usage have both pros and cons. Scholars view videos of different solutions, discuss them in small groups,...

Water covers around 75 percent of the earth, yet humans struggle to find enough fresh water to live. The fourth of 10 lessons focusing on Fresh Solutions requires brainstorming. Young scientists consider various problems related to fresh...

Half of crops from traditional farming never get harvested, while 90 percent of crops from vertical farming go into the food supply. As land runs out for farming and the need for crops increases, could vertical farming solve the problem?...

Approximately 50 percent of people in the world who are chronically hungry work in agriculture. While it seems counter-intuitive, the farther you live from a farm, the more food options are available. Scholars explore concepts related to...

In 2017, the world increased the capacity for using solar energy by a whopping 32 percent. Is solar energy the future for the planet? Approach this topic from the idea of how much solar energy reaches the surface of Earth. Individuals...

A lack of rain created deserts on one-third of the earth's land surface, while excess rain created rain forests on only six percent. Scholars observe a global perspective of rain fall. They see the satellite imagery over a six-month...

The sun is responsible for almost 99 percent of the solar system's mass. As an essential part of our lives, the sun has many important features. A PowerPoint lesson presents information about features such as sunspots, the magnetic...

Nationwide, over 40 percent of pregnancies are unintended. A lesson designed for women of childbearing age asks them to consider their goals and provides information about reproductive health. Learners view a PowerPoint presentation and...

Eighty-seven percent of people living in the United Kingdom identify as white, and some of those struggle to understand the importance of diversity in society. Scholars use presentations, discussions, and activities to address diversity...

A study in the United Kingdom found that approximately 60 percent of workers had heard the term gay used as an insult in the professional workplace. Scholars consider discrimination, negative attitudes, tolerance, and stereotypes in the...

Astronomers only observe four percent of the universe as the rest hides in darkness. The size, shape, and movement of the universe are the focus for an long-term high school unit. Its 43 lessons include hands-on experiments, direct...