In this unit fractions worksheet, students solve the six word problems using the parts and wholes for each problem to help find the fraction number.

Students explore ratios and proportions. In this ratios lesson, students work in groups to identify the ratio of boys to girls, as well as the ratio of vowels to consonants in their names. Given a bag of candy, students work in groups to...

Students use this lesson to focus on population growth and the threat of overpopulation. In groups, they analyze the world birth and death rates to determine the growth rate of the population. As a class, they discuss the causes and...

What does math have to do with a sore throat? When you mix water and salt you have a great review of how to represent proportional relationships by an equation or graph. Here the proportions of the mixtures may be different, but the...

Young scholars Explain how an increased level of activity translates to cells needing more oxygen and how the lungs supply this oxygen by entering the blood stream. They also can explain that the heart is responsible for moving both...

It's time for your class to advertise what they've learned! The culminating lesson in the 24-part series asks scholars to use their newfound chemistry knowledge to create advertisements. Their magazine advertisements describe the health...

Help learners determine the rate of change for the temperature of sand. They will collect data on the temperature of wet and dry sand over time with a heat lamp overhead. Then make a scatter plot of the data and find a linear model to...

Determine the slope when the unit rate is difficult to see. The 17th part of a 33-part series presents a situation that calls for a method to calculate the slope for any two points. It provides examples when the slope is hard to...

The class finds and cites evidence showing India's unity in diversity and work to recognize some of the complex interactions of a civilized community. They read to understand how geography, history, politics, economics,...

Introduce your young scholars to the concepts of circular motion, projectile motion, angular speed, simple harmonic motion, torque, center of mass, centripetal force, and Hooke's Law with a 86-slide presentation. The circular motion...

Assist your pupils and broaden their horizons with several activities that determine the exact positioning of various communities over the globe. Pupils use data from the Global Positioning System to determine the position and rate of...

Fifth and sixth graders practice working in pairs to determine whether they can walk with constant speed. They test themselves, collect their data, draw graphs with their data collected, manipulate the data, and then draw conclusions...

Ratios are all around you. A fun interactive has scholars investigate ratios and proportions in different situations. These include creating bracelets with different ratios of beads, mixing paint, adjusting the length and width of a...

Practice with unit rates, proportions, and ratios when Carlos purchases an amount of bananas. Learners must interpret a graph to decide whether points on the same line represent similar proportional relationships. Use with lesson plans...

National Chemistry Olympiad tests are released after their use each year, since they cannot use them again for this event. The result: outstanding comprehensive assessment resources for general chemistry classes! This 2005 version covers...

Now that geometers know how to solve for square units, can they solve for cubed units? Explore this concept as scholars examine four cubes to solve for volume in each. A detailed example explains this process, but you may consider asking...

The details here give definitions about chemical reactions and the energy transfer in those reactions. The reactions given include general examples of catalysts, inhibitors, and other situations that affect the rate of production and...

What happens when you have a recipe and need to up the measurements? Here is a lesson that explains how to use ratios to convert measurements and percents with worked out problems. Also provided are additional resources and practice...

Pupils explore factors that change human population growth in a biology simulation for seven countries including the United States, China, Egypt, Germany, Italy, India, and Mexico. Factors such as age at which women begin having...

Slow and steady wins the race? In the assessment task, scholars calculate the rates at which different snails travel in order to find the fastest snail. Hopefully, your class will move much more quickly in finishing the task!

Teens often display potential energy in class and kinetic in the hallways. This third presentation covers the six types of energy, each in potential and kinetic form. It also covers the Law of Conservation of Energy and Einstein's...

I don't get electricity jokes, watts so funny about them? The 13th in a series of presentations covers energy, motors, currents, generating electricity, calculating electrical energy cost, transformers, and batteries.

Students determine what the pulse is before examining how to measure the heart rate in different situations. They build a simple device that measures the heart rate, take heart rates, and record them on a worksheet. They discuss how...

In this population worksheet, students will determine if 12 statements about demographic trends, including the effects of birth and death rates on populations, are true or not. Then students will match 6 population growth vocabulary...