Curated OER
Are Our Chemical Measurements Accurate or Precise?
What is the difference between accuracy and precision? This worksheet has students define the terms accuracy and precision, and compare bulleye diagrams to find examples of both. Students analyze given data and determine the accuracy and...
Curated OER
Discount and Sales Tax
In this Algebra I worksheet, students work with a family member to find the percent of discount and sales tax of three items that are on sale. The twopage worksheet contains fourquestions. Answers are not included.
Curated OER
Percents and Discounts
Learners convert between decimals and percents. In this algebra lesson, students define percent as it relates to sales and tax. They calculate the percents of number using multiplication.
Curated OER
Fractions, Decimals and Percentages
In this fractions, decimals, and percentages worksheet, students compare and order given amounts. Students identify equivalent numbers. They calculate the percent of a given number and convert from a fraction to a percent and to a...
Curated OER
Fashion Sense and Dollar Wise
Students find the cost of an outfit. In this percentages lesson plan, students look at ads, pick out an outfit, and find the sale price. They create a commercial and complete 4 included worksheets. 
Curated OER
Molecules, Moles and Molar Masses
In this molecules, moles and molar masses worksheet, students find the atomic masses of 8 elements, they write the formulas for 6 diagrams of molecules and they find the molecular masses of 12 compounds. Students also find the fraction...
Curated OER
What Can We Measure about Chemicals?
In this measuring chemicals worksheet, students determine the accuracy and precision of measurements and distinguish between the two. They find the percent composition of compounds, the molar mass of compounds and the volume of gases at...
Curated OER
Water: The Flow of Women's Work
Students view photographs, read, and reflect on their own environments to gather information about gender roles in Lesotho and the United States. Students role-play gender role related scenarios and write about their reflections on the...
Curated OER
Resistance in a Wire
Students find the constant of proportionality and apply it to a situation. They use the electrical resistance in a wire as a context for finding the constant of proportionality. In addition, they write an explanation and justification of...
Teach Engineering
Solar Water: Heat it Up!
Young engineers are instructed to design and build their own solar water heaters. Then, they calculate the efficiency and cost and compare them to commercially available models. This is a full unit for pupils to apply their knowledge.
Curated OER
Percent of Change
In this algebra worksheet, students convert between percents and decimals. They calculate sales tax, discounts and relative errors. There are 4 questions with an answer key.
EngageNY
Counting Problems
Solving these percent problems is a matter of counting. Pupils find percents by counting the number of events that meet the criteria and the total number of possibilities. Participants create the ratio and convert it to a percent to...
Illustrative Mathematics
Discounted Books
Adolescents love to shop, especially when an item is discounted. Here, shoppers only have a set amount of money to spend. Will they be able to make a purchase with the discount and tax added in? Percent discounts can be calculated...
Math Worksheets Land
Conversion between Decimals, Fractions, Percentages - Step-By-Step Lesson
A helpful math worksheet, intended as a guided lesson, walks young mathematicians through the process of converting the decimal 0.75 to a fraction and percent.
Illustrative Mathematics
Gotham City Taxis
Taxi! Have your travelers figure out how far they can go in a taxi for $10.00. They must account for the mileage rate and tip in their calculation. They can set up a table or make an equation to solve for the exact mileage they can...
Read Works
Canine Courage
Did you know dogs had an important job on September 11th, the day airplanes took down the World Trade Center? Learn more about the furry heroes with a three-page informational read designed to aid pupils in answering 10...
Curated OER
Build Your Dream Bedroom
Designers measure their own rooms and produce a scale drawing. They use the Internet to visit sites to find the costs of purchasing new carpet, paint, or anything else they would like to add to their room. Using a $1500 budget, they will...
Curated OER
Group 15, The Nitrogen Group
This short presentation provides a convenient introduction to the nitrogen group in the periodic table of elements. A graphic displays where they are placed in the periodic table. The nitrogen cycle is mentioned and ammonia is explained....
Curated OER
How Hard Were the Times? Investigating the Meaning and Significance of the Great Depression
Students examine causes and effects of Great Depression and its significance on twentieth-century life, analyze value of various types of historical information, specifically primary sources, and relate events, issues, problems, and...
Curated OER
Cartoons for the Classroom: 2012 Mid-Term Elections
Use a political cartoon to help scholars grasp the significant turnover in Congress following the 2012 mid-term election. A Mike Keefe cartoon uses symbols and current political lingo to convey perspective on the issue, and background...
Deliberating in a Democracy
Recycling
How often have you passed by a recycling container in your school? Scholars research the issue of recycling in the ever-changing global world. Using documentation and video evidence, they form their own opinions on recycling and how it...
Curated OER
Penny
Students explore the concept of equivalency. In this equivalents lesson, students use pennies to show equivalency as they divide them into groups. Students also convert the pencils into decimals and fractions.
Curated OER
Restaurant Tipping Lesson
What do you do after a good meal, tip the server of course. The class calculates the appropriate tip to leave at a restaurant given certain bills. They identify the bill before and after tax and find the correct tip. A great way to put...
Curated OER
Seeing the World in New Ways
Students  probe their own histories to record how they have had to expand their world views.  They determine "Everyone has a culture. It influences how we see the world, ourselves, and others."  The explain the concept of cultural...