Education Development Center
Similar Triangles
Model geometric concepts through a hands-on approach. Learners apply similar triangle relationships to solve for an unknown side length. Before they find the solution, they describe the transformation to help identify corresponding sides.
Education Development Center
Finding Triangle Vertices
Where in the world (or at least in the coordinate plane) is the third vertex? Given two coordinate points for the vertices of a triangle, individuals find the location of the third vertex. They read an account of fictional...
Education Development Center
Word Problem with Rational Numbers—Balancing Bars of Soap
Here's a resource teachers won't want to wash their hands of. Given a task where a full bar of soap is on one side of a balance and 3/4 of a bar of soup and a 3/4-ounce weight is on the other side, young mathematicians must determine the...
Curated OER
Acid-Base Titration
Students determine the concentration of an unknown solution. This task assesses students' abilities to state hypothesis, develop procedures for investigation, plan for recording and organizing observations and data, collect data, create...
Curated OER
Linear Systems and Echelon Forms
Eleventh graders define various types of linear systems and three types of solutions. In this linear system and echelon forms lesson plan, 11th graders solve a linear system using elementary row operations. Students also describe the set...
Curated OER
Physical and Chemical Properties of Water
Young scholars experiment with water as a component of suspensions, solutions, and heat conduction contributing to the use of food and the health and wellness of human beings.
Illustrative Mathematics
Friends Meeting on Bicycles
It's a great day for a bike ride, but how long will it take? Your learners will have to calculate multiple variables in the problem using scaffolded questioning. Different answer choices are given, but you will need to create the table...
Concord Consortium
Micelles
Micelles consist of an aggregate of molecules in a colloidal solution. The simulation presents two different ways the molecules assemble into micelles based on the polarity of the solution in which they are placed. Scholars can set the...
Novelinks
The Winter’s Tale: Problematic Situation
Before beginning The Winter's Tale groups read and discuss a scenario that parallels the plot of Shakespeare's play. They then brainstorm possible solutions to the problem.
Illustrative Mathematics
Midpoints of the Sides of a Paralellogram
This task asks learners to prove that the segment joining the midpoints of two sides of a parallelogram is both congruent and parallel to an adjacent side of the parallelogram. The activity would be good to use in a discussion about how...
Curated OER
Earth Day...Comin Atcha!!!
Students explore the idea of consequence that every individual leaves a daily environmental footprint. They read articles about creative solutions to solid waste issues and then create an artwork from household trash.
Curated OER
Harvesting Water from Fog
Students analyze the water issues of Cape Verde in the Peace Corp lesson. In this water resources lesson, students analyze the concept of water being harvested from fog. Students explore the Peace Corps project site by watching Nathan...
Curated OER
Teaching Language Arts in Kindergarten Using Stories, Aesop's Fables, and Tall Tales
Students search into a variety of story elements in the eight lessons of this unit. The title, author, illustrator, setting, main character, problem, solution, events and the story are the components of the lessons.
Curated OER
Matricies: Meadows or Malls?
Students explore the use of matrices and graphing calculators to solve a complex linear programming problem. They test their solutions to determine the best division of land use for the city.
Curated OER
Measuring the Effect of Adrenaline on the Heart Rate of Zebra Fish
Students investigate the heart beat of zebra fish in timed intervals. They record the heart beats and average three counts to display in their data tables. They repeat these steps increasing the adrenaline solution.
Curated OER
Densities
Students explore the concept of density. In this density lesson plan, students determine the density of a crown and a sample of clay. They hypothesize about the densities of 4 liquids they are given including molasses, cooking oil, a red...
Curated OER
Designing Machines
Students explore simple and compound machines. In groups of four students, they design a compound machine using K'NEX that has a stated purpose and consists of at least two simple machines.
Curated OER
Squares, Shaded Area
In this secondary mathematics instructional activity, high schoolers are provided with a figure that consists of squares and isosceles triangles and must determine the percent of the figure that is shaded. The one page instructional...
Curated OER
Finding the next Numbers in a Sequence
In this sequence instructional activity, students identify the next three numbers in a given sequence. The solution to the problem is provided.
Curated OER
World History/Current Events
Learners write a poem discussing the courage, dignity, and hope of the Afghan Students. The poem consists of at least 12 lines. The poem should be illustrated on poster board using images from the magazines.
Math Mammoth
Expressions
In this math activity, students solve the expressions with using the values of the variables to find the solutions. They also solve the set of proportions.
Curated OER
2003 US National Olympiad Exam Local Section
In this National Olympiad Exam learning exercise, students answer sixty multiple choice questions including topics such as atomic structure, problem solving, thermodynamics, acids and bases and solutions.
Curated OER
Equilibrium: What Is It?
Tenth graders investigate chemical, physical and mechanical equilibrium. In this equilibrium lesson, 10th graders participate in a physical activity to show equilibrium by some students standing and some students sitting at the same...
Curated OER
Evaporation and Temperature Change
Young scholars investigate the relationship between evaporation and temperature changes. In this evaporation and changes in temperature lesson, students measure the changes in temperature of different solutions on a cotton ball.