EngageNY
Changing the Base
I can't calculate a base-2 logarithm since my calculator doesn't have a base-2 log key. Young mathematicians use the change of base formula to extend the properties of logarithms to all bases. Among these bases is the natural log base,...
Mobile Education Store
LanguageBuilder for iPad
Help your child hone his/her verbal communication skills and basic understanding of sentence structure with an app that promotes descriptive verbal interactions. The child is presented with an image, prompted to make a sentence, and then...
Space Awareness
Greenhouse Effect
A greenhouse provides additional warmth and protection to the plants inside, but what if the greenhouse gets too hot? Pupils discuss and experiment with the difference between natural and anthropogenic greenhouse effect. They measure the...
Curated OER
Elastomers: The Best Bungee Cord
Students examine elastomeric polymers in a lab activity in which they design a bungee cord. Students must determine the tensile strength, percent elongation, and plot stress versus strain graphs for their experiments on rubber bands...
Curated OER
Letter Sound and Letter Combination Accuracy: Sound Matching Adjectives
Kindergartenrs explore English by analyzing images in a picture book. This lesson on the parts of speech calls for young learners to view a picture book in class and describe characters, settings and objects with adjectives. Then, as a...
Noyce Foundation
Circular Reasoning
Examine the origin and application of pi in five different levels. The five lessons in the resource begin with an analysis of the relationship between the radius and circumference of a circle. The following lessons lead learners through...
Beverly Hills High School
Evaluation of Events During the French Revolution
How would you grade the events of the French Revolution? History class members evaluate the positive and negative impacts of eight pivotal events, including the Reign of Terror, the Meeting of the Estates General, and the Coronation at...
Curated OER
Water and Polymers
Students conduct qualitative and quantitative investigations based on the interaction between water and various polymers. They determine the percent moisture contained in various plastics along with a qualitative procedure to determine...
Curated OER
Slime and Intermolecular Attractions
Students explore the strength of intermolecular attractions. They make slime and compare the difference in the physical properties of sheet and powdered polyvinyl alcohol with polyvinyl acetate.
Curated OER
Investigation of Crystallinity in Polymeric Materials
A kaleidoscope is constructed using polarizing polymer paper and then low-density polyethylene, high-density polyethylene, and polypropylene are all melted onto individual glass slides and examined through a microscope. The intent is to...
Curated OER
The Study of Molecular Orientation by Linear Dimension Change of Polymeric Films
Students investigate the linear dimension change of heated plastic film and relate the results to processing and service use of the materials. They calculate percent change in dimension as related to anisotropy and molecular reorientation.
Curated OER
#21 Films, Fibers, and Solubility
Students are introduced to how the differences in solubility of materials are used in the manufacture of fibers and films. They are also introduced to the various processes used to make films and fibers. Pupils prepare fibers using wet...
Curated OER
What Is Special About Polyethylene Food Storage Bags?
Students participate in an investigation in which they compare a polyethylene bag designed for recycling or disposal with a polyethylene food storage bag. Students use hexane to determine the differences between the low density...
Curated OER
Chemical Resistance and Synthetic Polymers
Students participate in lab activities in which they examine immersion, stain resistance, and stress cracking of synthetic polymers. Students use their collected data to discuss service applications and possible performance of materials.
Curated OER
# 14 Experimenting with Copper (II) Solutions
Students determine that the relative concentration of copper ions in water can be determined by a color comparison. They make a copper (II) sulfate solution of a given concentration. Students dilute their initial solutions until their...
Curated OER
teaching Geography Using Literature in K-University Classrooms
Students read one of the following books: Minn of the Mississippi, Paddle-to-the-Sea, or Seabird, all by Holling C. Holling, and identify the five themes of geography as well as make a literature journal with chapter field notes. They...