PPT
Pearson

The Chemical Context of Life

For Teachers 9th - 12th
An educational presentation includes atoms, molecules, the four major elements, as well as neutrons and protons. Additionally, slides focus on atomic number, mass number, atomic weight, polar and nonpolar covalent bonding, ionic...
Lesson Plan
Curated OER

Finding the Area Under A Curve with Random Probability

For Teachers 11th - Higher Ed
Students explore the concept of area under a curve. In this area under a curve lesson, students find the area under a curve using the Monte Carlo method using random points and probability. Students calculate the area under the same...
Worksheet
Curated OER

Baseball Proportion: Student Worksheet

For Students 4th - 6th
Here is a simple and clever activity which illustrates the concept of mathematical proportion and size quite effectively. In it, two pupils hold baseball bats: one is a regulation-size bat, the other is a miniature souvenir bat. The...
Lesson Plan
Curated OER

M&M's and the Scientific Method

For Teachers 6th
Sixth graders explore the scientific method by conducting an in class experiment. In this scientific averages lesson, 6th graders discuss the concept of the scientific method, and define the different mathematical averages, mean, median...
Lesson Plan
Curated OER

Using Proportions to Estimate

For Teachers 8th - 10th
Students calculate ratio and proportion. In this unit rates lesson, students estimate using proportions and find their errors in doing so. They calculate unit rates and define the concept of unit rates.
Lesson Plan
National Research Center for Career and Technical Education

Information Technology: Photoshop Scale

For Teachers 6th - 12th Standards
Scaling is a practical skill as well as a topic to be addressed throughout the Common Core math standards. You are given three different presentations and a detailed teacher's guide to use while teaching proportion, as well as practice...
Lesson Planet Article
Curated OER

Manipulatives Make Abstract Math Concepts Concrete

For Teachers 1st - 6th
Using math lessons that include manipulatives can help cement learning.
Unit Plan
National Security Agency

It's Probably Probable

For Teachers 6th - 8th Standards
Learners make predictions and draw conclusions from given information as they learn the meaning of probability in this vocabulary-rich, integrated activity that presents a variety of teaching strategies to motivate and reach...
Lesson Plan
Curated OER

Dried Meat

For Teachers 5th - 8th
Students investigate the traditional method of drying meat used by Native Americans. They apply math concepts such as ratio, proportion, percent, and scientific notation to determine the amount of meat the is dried from an animal using...
Lesson Plan
Curated OER

The Golden Rectangle

For Teachers 6th - 8th
Middle schoolers explore the concept of the golden ratio. In this golden ratio lesson, students measure objects to determine if their measurements fit the golden ratio. Middle schoolers calculate the average measurements of the class.
Lesson Plan
Curated OER

"How Divine Is My Proportion?"

For Teachers 8th
Eighth graders explore the concept of the divine proportion/golden ratio. In this Fibonacci Sequence exploratory lesson, 8th graders measure the length and width of various objects to see which items have a divine proportion. Students...
Lesson Plan
Curated OER

Proportion Problems

For Teachers 7th
Seventh graders explore the concept of proportions. In this proportions lesson, 7th graders determine which offer is the better deal given two pizza offers. Students use cross products to solve proportions. Students write directions...
Lesson Plan
Curated OER

Two for One Box Company

For Teachers 8th
Eighth graders experiment to decide if a box that is twice as big holds twice a much. They work the concept of volume and how changing dimensions affect it.
Lesson Plan
Curated OER

Percents

For Teachers 4th - 5th
Learners explore the concept of percents. For this percents lesson, students discuss the prefix cent and words that contain that prefix. Learners make bead necklaces and determine the percentages of certain beads in relation to the...
Lesson Plan
Curated OER

Size Small School

For Teachers 6th - 8th
Students explore the concept of scale and ratio.  In this scale and ratio lesson, students work in groups to measure a given space such as a hallway, office, or gym.  Students measure their area using a meter stick. ...
Lesson Plan
Curated OER

You Are Here

For Teachers 6th - 8th
Students determine the relative size and distance of the planets in the solar system. They use ratios in their mathematical calculations to make models of the planets after discussing the relative sizes of the planets. They keep a...
Lesson Plan
Curated OER

Quilting with Middle School Students: Using Proportionality to Develop Quilt Designs

For Teachers 7th - 9th
Students use quilt patterns to illustrate ratios. In this fractions lesson plan, students color quilt patterns using given fractions and ratios of colors. A finished "quilt" is assembled from the work of the students. This is an...
Lesson Plan
Curated OER

As Good As Gold

For Teachers 5th - 10th
Students find examples of the Golden Ratio on the human body through measurement. Additionally, students learn about the use of the Golden Ratio and the Golden Rectangle in art and architecture. A very interesting lesson for the students!
Lesson Plan
Curated OER

Ratios in Right Triangles

For Teachers 9th - 12th Standards
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...
Lesson Plan
Curated OER

Angle Bisectors and Medians of Quadrilaterals

For Teachers 9th - 12th Standards
Young scholars investigate the properties of quadrilaterals formed by angle bisectors of a given quadrilateral and quadrilaterals formed by the medians of quadrilaterals. This Cabri Jr. lesson provides opportunity for conjecture and...
Lesson Plan
Curated OER

Size of Per Unit Quantity

For Teachers 5th
Fifth graders use various strategies to find the area of land, the area of forestry and the population of Japan and the US. In this size per unit lesson plan, 5th graders explore how to figure ratio. Students draw pictures...
Worksheet
Curated OER

Three Bean Salads

For Students 4th - 5th
In this math worksheet, student compare the recipes for three different salads. Using the concepts of percents and proportions the amount of beans is calculated.
Lesson Plan
Curated OER

Math: Fractions

For Teachers 5th - 7th
Participate in a class lesson on ratio, rate, and unit rate. Successful usage of this lesson requires the pupils and the teacher have access to the Scott Foresman/Addison Wesley Middle School math text. However, the unit rate problems...
Assessment
Noyce Foundation

Truffles

For Teachers 6th Standards
Knowing how to scale a recipe is an important skill. Young mathematicians determine the amount of ingredients they need to make a certain number of truffles when given a recipe. They determine a relationship between ingredients given a...