New ReviewCan your young welders select the correct shielding gas mixture for the task at hand? Introduce them to the percent calculations needed to get the job done right with a simple, yet effective, career and technology lesson. After working...

New ReviewSometimes losing is actually winning! Learners use a proportional analysis to compare percent weight loss of contestants on The Biggest Loser. The resource provides data and clips from the show to facilitate the lesson.

New ReviewMake money disappear! Young scholars watch as a copier shrinks a dollar bill to 75 percent of its size. Learners are left to determine the size of the dollar bill after nine passes through the copier.

New ReviewWhen it's time to upgrade to bigger wheels and tires, is your class up to the challenge? Aspiring automotive technologists create and use a formula to calculate the diameter of a tire and wheel assembly in an upbeat career and technology...

New ReviewWhat a bargain—an informative, free resource! Given prices of several objects, learners determine whether 20 percent off or $20 off would be a better bargain. They use the results to come up with a generalization of the situation.

New ReviewA lesson plan on percents, perchance? Young mathematicians learn about the meaning of percents. They play a game using dice to write and solve questions involving percents.

New ReviewIt's a small world after all. Classmates consider world population, languages, and religions in a cross-curricular lesson plan. Applying percentages and proportions, they determine what the class make-up would be if the class represented...

New ReviewIt's the one day your classes get to 'shoot' their trash into the can! Scholars collect data related to shooting percentages to analyze. As they move farther from the basket, their percentages change, and a linear model emerges.

New ReviewRecreate the secret Coca-Cola formula in a virtual lab. Young scholars create the solution and then calculate sucrose concentrations in terms of percent mass, molarity, molality, and mole fraction. Then using density, learners determine...

What is the probability a meteorite strikes land when it hits Earth? Your classes use an experimental lesson to collect data and calculate an experimental probability. Using the area of land versus water on Earth, they adjust their...

Get to know your classes and teach a little math at the same time! A data collection activity asks scholars to answer a set of questions. The task is to analyze the class data by calculating means and ranges for each data set. Learners...

O, Canada! Young mathematicians explore population data for Canada and the US. They find a "Rough Rule of 10" (that the population of the US is roughly 10 times that of Canada) and then look at the population densities of US states.

If your learners' lack of understanding of averages weighs on your mind, here's a resource to use. Young mathematicians learn how to calculate weighted averages and apply their newfound knowledge to a set of grades—less work for you if...

How nutritious is fast food? Scholars apply percents to determine the percent calories from fat, carbohydrates, and protein. They then try to find meal combinations that meet daily nutrition requirements—which is kind of hard to do with...

Things used to be so much cheaper back in the day. Given the past price of an item and two percent changes, scholars calculate the results of the percent changes. They then decide, after discussion with their peers, which of the two...

Does the shape of a hay bale affect profits? A practical instructional activity asks scholars to calculate the volume of both square and round bales of hay. They compare their results with hay prices to determine value.

Pupils extend their knowledge of numbers' many uses. Given four scenes from an airport, learners identify and describe how they use the numbers presented.

What does your typical day look like? Learners answer just that using a pie chart. They break their activities down into percents and convert their calculations to pieces of the pie chart.

Bigger does not always mean more votes! The final lesson of the three-part series compares the areas of the US to the electoral votes. Scholars determine if the area of land is proportional to the electoral votes assigned.

It's possible to both win and lose a presidential election! Building on the data collected in the previous instructional activity of the series, learners analyze Electoral College data in the second of three installments. It becomes...

What does the ideal shopping mall look like? The second lesson in a two-part series analyzes the percent of different types of stores in a mall. Scholars create their own malls using this criterion and complete scale models according to...

We know Sumerians used geometric tiled floors as early as 4000 BC. Scholars create their own geometric patterned floor and estimate the cost based on materials and labor. They also figure taxes and consider material waste.

Create a one out of a hundred model. Using a grid to visualize percents, pupils shade squares to solve percent problems. Learners develop the conceptual understanding of a percent and use the value of one percent to solve problems.

Round up state population data. Given circle graphs representing the population of the states, pupils compare percents from one graph to the next. Learners research to find an explanation of the changes in populations in the states.