Noyce Foundation
Lawn Mowing
This is how long we mow the lawn together. The assessment requires the class to work with combining ratios and proportional reasoning. Pupils determine the unit rate of mowers and calculate the time required to mow a lawn if they work...
Curated OER
Shots, Standings, and Shopping
Rates and ratios can easily be applied to real-world situations. Learners explore a series of websites in order to procure comparable data. They define ratios and rates, view videos, and use the internet to explore how ratios and rates...
Curated OER
Understanding Rational Numbers and Proportions
Students explore parts of a whole. In this fraction instructional activity, students determine what makes a fair share. Working with manipulatives, students solve mathematical problems containing fractions.
McGraw Hill
The Units of the English System
Go from feet to inches to yards and back again with this notes and worksheet combo resource. Several pages of examples regarding unit conversion of the English system are given, followed by different pages of problems. There is a nice...
Curated OER
Waterwheel Work
Learners investigate the history of the waterwheel and common uses for water turbines today. They construct an experimental waterwheel using a two-liter plastic bottle, measure the rate of revolution of a waterwheel, and complete a...
Noyce Foundation
Cereal
Find the best protein-packed cereal. The short assessment task covers equivalent and comparing ratios within a context. Pupils determine the cereal with the highest ratio of protein. A rubric helps teachers with point allotments for...
Noyce Foundation
Photographs
Scaling needs to be picture perfect. Pupils use proportional reasoning to find the missing dimension of a photo. Class members determine the sizes of paper needed for two configurations of pictures in the short assessment task.
Noyce Foundation
Mixing Paints
Let's paint the town equal parts yellow and violet, or simply brown. Pupils calculate the amount of blue and red paint needed to make six quarts of brown paint. Individuals then explain how they determined the percentage of the brown...
5280 Math
Integer Interpreter
Can you add variables if you don't know their value? Using an empty number line, scholars first locate the position of the difference, sum, product, and quotient of two unknown integers. Later problems mix operations as well as add...
Curated OER
Building Sets of 13 and 14
Compose and decompose sets of 13 and 14 and compare sets of each with your little learners. They use objects to construct sets of 13 and 14, record their answers, and compare sets in several different ways.
Curated OER
One Dollar Around the World
Twelfth graders collaborate via ePals with another student from another country. They compare the value of a dollar with its power of acquisition in other countries. They list one dollar items and find the corresponding price in other...
Curated OER
Investigation- What Does It Cost?
Eighth graders investigate percents by comparing different discounts on the same sale item, practice graphing percents, and look at reasonable and unreasonable "percents off" a sale item.
Curated OER
Recipe Formats - Level II
A recipe, no matter its format, gives ingredients and instructions for a specific food so that the food item tastes the same every time. See Preface Materials:
Curated OER
The Price Is Right - Grocery Store Prices
Eighth graders use the unit price to compare which local grocery store has the best prices. Assign students to work with a partner and a role. One person is the recorder and the other is the mathematician.
Curated OER
Recipe Formats - Level II
Students prepare chocolate chip cookies (or another recipe of choice) in the lab to give them practice in measuring, reading a recipe, using equipment, work habits, etc.
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
The Nucleus / Nuclear Reactions and Elementary Particles
Students describe how radioactivity relates to alpha and beta particles. Using their properties, they write a descriptive paper about the gamma rays and alpha and beta particles. They calculate q-values and the half-life of a given...