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Curated OER
Maps
Students figure out the mileage from one state to another using a map. In this map lesson, students look at the scale factor and turn it into a fraction. They measure the distance between two cities and use the proportion to find the...
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Similar Triangles - Geometry Exploration
Eighth graders become engaged in a lesson plan in geometry to improve mathematical skills. They construct triangles, segments, and points using Geometer's Sketchpad to demonstrate how dilations of triangles and rectangles change...
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Handy Reflections
Learners explore reflections on a coordinate plane in this lesson. They trace their hand on a grid, determine the coordinates of each point, and create a scatter plot of their points. Pupils use this information to investigate aspect...
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Comparing Fractions
Students discuss the nature of fractions and compare fractions based on a similar whole to determine relative size.
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Investigating Trigonometric Ratios Through Similar Right Triangles.
49Pupils investigate the properties of right triangles. In this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
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Investigating Trigonometric Ratios Through Similar Right Triangles
Young scholars identify similar and congruent right triangles. In this geometry lesson, students use trigonometric ratios to identify missing sides and angles of a triangle. They differentiate similar and congruent triangles.
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Why Are Cells So Small?
Students examine the relationship between cell surface area and the ability of materials to diffuse through a cell. They participate in an experiment in which they determine which materials diffuse easier than others. They complete...
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Intro to Trigonometry
After being introduced to the basic trigonometry functions, learners calculate the height of school landmarks. They experiment with different angles to find the correct height.
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Shining the Light on Skin
Students investigate the relationships between certain environmental factors and levels of exposure to sunlight. The variables of location, time of year, and day, and the weather which affect the intensity of the sun are explored in this...
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Playing With the Grid
Students examine works of grid art by the painter Chuck Close. They discuss the process of creating a drawing using a grid, view images of grid art, and create a grid drawing.
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What is Probability? Original Lesson Plan
Students predict, using a fraction or a ratio, the possibility of an event happening and place that fraction or ratio on a Likelihood Line. In Part Two of the lesson, they conduct an experiment to determine theoretical and experimental...
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Fertilizers, Pesticides and Health
Learners apply real data to create and calculate algebraic equations. Students create a visual to represent the concentration for one part per million and apply unit analysis to verify measurement computations. Learners define the use...
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Solution Chemistry Investigation
Young scholars engage in a lesson that is concerned with the concepts related to solution chemistry. They calculate the molar mass of various chemical compounds. Then students predict the anion ratio for ionic compounds. Young scholars...
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Design Project: Sensitive Audio Detector
In this physics worksheet, students answer 5 conceptual questions about the sensitive audio detector they built. They analyze the component of their circuit.
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Diameter, Radius and Area
Pupils calculate the diameter, radius and area of a circle. In this geometry lesson, students investigate the different ratios of a circle. They calculate the surface are of each circle.
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Activity #7 Mass, Volume and Density
Learners comprehend that density depends on the type of material and not on the amount of material. They use a spoonfl of table salt and a box of table salt and have the same density. Pupils comprehend that density is calculated by...
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Ranking Salinity
Students explain the uses of titration in chemistry and in industry. In this chemistry activity, students determine the concentration of an unknown solution using titration. They calculate the percent of salt in saline solutions.
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Making Good Investments
Students compare different aspects of investing money from traditional savings accounts to money market accounts. They research investment accounts at local banks and compare them.
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What Can We Lose? What Do We Lose as we Gain Force With A Lever?
Third graders view a demonstration of a teeter totter as a basis for assessing pre-knowledge of a lever. They create a KwL chart. Students work in small groups to conduct a variety of experiments. The first requires students to tie books...
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Two Terrains
Students compare two cell phone providers and relate those concepts to motion. For this algebra lesson, students identify the unknown in a problem using variables. They calculate the velocity, motion and displacement of different objects.
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Balsa Towers
Young scholars build their own tower using concepts from previous lessons. They are given a set of materials to use and general guidelines. They share what they have created with their classmates.
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Will There be Enough Water?
Middle schoolers investigate water usage, water available, and water demand historically in the local area. They use projections of water usage, availability and demand up to the year 2050. Students use graphs to relate as well as...
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Water - Planning for the Future
Students explore and examine the increases and/or decreases for water user groups: irrigation, municipal, manufacturing, steam electric power generation cooling, livestock, and mining. They utilize percentage changes during their...
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Baseball Proportion
Students work on different mathematical skills that align with state standards. The skill of problem solving is done with reasoning and communication is made to students through solid brain connections to the math concepts.