EngageNY
Overcoming a Third Obstacle to Factoring— What If There Are No Real Number Solutions?
Time for pupils to use their imagination! Learners examine the relationship between a system with no real solution and its graph. They then verify their discoveries with algebra.
Curated OER
Semipermeable Membranes and Bioaccumulation
Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....
California Academy of Science
Fresh Solutions: Design Thinking Challenge
How do people transport fresh water long distances to ensure everyone has access to it? The final activity in the 10-part Fresh Solutions unit encourages individuals to design their own solution, or solutions, to that very problem....
EngageNY
Some Potential Dangers When Solving Equations
Need a less abstract approach to introducing extraneous solutions? This is it! Young mathematicians explore properties used to solve equations and determine which operations maintain the same solutions. They...
Curated OER
Mixtures
Students observe that movement of a solute in the solvent increases the rate of dissolution. They demonstrate that when the solute is broken into smaller pieces it dissolves faster.
Curated OER
Diffusion through Membranes
Pupils identify diffusion and its processes through experimentation and calculations. They also use a CBL and conductivity probe to measure the conductivity of various solutions and study the effect of concentration gradients on the rate...
101 Questions
Combining Coupons
Everyone likes to save money! Use your math skills to figure out just how much you can save on a pair of sweet shoes. A vendor is running a percent off sale, with a percent off coupon, and a specific dollar amount coupon—and lets you use...
Curated OER
Mixtures
Students experiment with solutions. In this mixtures and solutions science lesson, students work in groups of three to perform an experiment. Students place a sugar cube in three glasses, and observe and record the different rates...
Curated OER
WorldWatcher Activity: Using Data to Investigate Issues and Solutions
Students use the WorldWatcher program to identify the issues affecting their country they have been using for these activities. In groups, they identify each issue and identify the solution or develop their own. They present their...
EngageNY
Using the Quadratic Formula
What is the connection between the quadratic formula and the types of solutions of a quadratic equation? Guide young mathematicians through this discovery as they use the discriminant to determine the number and types of solutions,...
Curated OER
Summer Intern
Your young apprentices build a function describing the percent concentration of salt in a brine. The rational function is then related to the parent function, y= 1/x, and graphed. Finally, the apprentices predict the amount of fresh...
Millennium Schools
Lifestyle Chemistry
My name is Bond, Hydrogen Bond. Written for distance scholars working on chemistry at the high school level, the lesson includes eight weeks worth of material divided into six parts: substances you use, mixing it up, your skin, what's...
Curated OER
I'm All Mixed Up
Middle school scientists compare and contrast heterogeneous and homogeneous mixtures. They differentiate solutions, colloids, and suspensions by examining samples of each. Note that the bulk of the lesson plan directs you how to...
Curated OER
Life and Death in the Camps
Students state the difference between death camps and concentration camps used during the Holocaust. Using primary source documents, they summarize what life in the camp was like. They describe the final solution used by the Nazis.
Curated OER
The Wannsee Conference
Twelfth graders examine what occured at the Wannsee Conference during World War II. Using documents, they discover how the conference fits into the final solution of the Jewish question. They analyze the language used and the attitudes...
Curated OER
Is That Your Final Answer?
This unit on integers includes a pre-test, a post-test, four spreadsheets, and links to an interactive web-site to support the learning of integer operations. Access to computers and the Internet are imperative to this unit. The lessons...
Curated OER
Do We Need to Wear a Rainhat? Acid Rain: Causes, Effects, and Possible Solutions
Acid rain, and how it affects the environment, is the focus of this Earth science lesson. During the study, learners evaluate measures to reduce acid rain, and design an investigation to demonstrate the conection between a hypothesis and...
Concord Consortium
Functions by the Slice
Piece by piece ... dismantling a function can highlight interesting patterns. The task asks learners to slice functions in sections with the same vertical change. They then recreate the graph with these slices positioned horizontally....
Curated OER
Carbon 14 Dating, Variation 2
Your archaeologists begin this task with a table of values to estimate the time passed based on the half-life of Carbon 14 remaining in a plant. They then move on to find when a specific amount of Carbon 14 is present in the same plant,...
Curated OER
Genocide: Past & Present
Students visit the Holocaust Musuem through an interactive program. They examine Hitler's Final Solution and where concentration camps were located. They analyze how the situations in Auschwitz are similiar to Darfur.
Curated OER
Is Dilution the Solution To Pollution?
Students demonstrate the meaning of dilution and concentration and how pollution can affect the water that you drink. They perform an experiment to calculate the final concentration and dilution factor of solutions. They record the color...
Curated OER
Chemistry: pH Probe
Young scholars conduct a pH probe of various household products including both bases and acids. In groups, they use litmus paper to test such liquids as amonia, vinegar, and detergent to discover which are acids and which are bases....
Curated OER
ME402: Growth of Yeast
Students investigate the growth of yeast in a sugar solution. They verify the pressure of carbon dioxide using bromothymol blue. Students are asked to describe the difference between the contents of the test tubes used and to explain...
American Chemical Society
Recrystallization Test
Crystallize the answer to the question that has been investigated since the first of four lessons: What is the unknown crystal? Pupils have examined, crushed, and dissolved four samples plus an unknown as an exploration of the properties...