Interactive
CK-12 Foundation

Points that Partition Line Segments: Cutting a Log

For Students 9th - 12th
Teach ratios of line segments using an interactive approach. Scholars examine a line segment in the shape of a log and use their knowledge of ratios to divide it into various partitions. As an introductory lesson, the segment has a...
Interactive
CK-12 Foundation

Visual Patterns: Balloons

For Students 6th - 8th
Balloons aren't just for little kids; they can teach important math concepts, too. Individuals use an interactive to continue a color pattern with balloons. They continue the pattern and write a mathematical expression to represent the...
Interactive
CK-12 Foundation

Simple Random Sampling: How Many Samples Does it Take to Change a Light Bulb?

For Students 7th - 10th Standards
Teach the concept of simple random sampling through an interactive lesson. Learners explore the concept by considering the strength of sampling methods. Size of the samples varies also as individuals determine which methods lead to the...
Interactive
CK-12 Foundation

Continuous Interest

For Students 10th - 12th
Continue teaching your financial scholars about interest. A slider interactive has users investigate the growth of an account earning continuous interest. A set of challenge questions has them solve problems given a variety of situations.
Lesson Plan
Curated OER

Allele and Phenotype Frequencies in Rock Pocket Mouse Populations

For Teachers 9th - 12th Standards
In the deserts of Arizona and New Mexico, some tiny creatures show just how quickly natural selection can turn a mutation into an advantageous adaptation. Watch a video about rock pocket mice, who show that one small change can make all...
Lesson Plan
Curated OER

Public Land

For Teachers 6th - 12th
Learners examine the needs of their community for public space and determine the solutions to math problems related to planning landscape designs. They read and discuss an article from the New York Times, create their own designs for a...
Lesson Plan
Berkshire Museum

Camouflage!: Collecting Data and Concealing Color

For Teachers 2nd - 5th Standards
Help young scholars see the important role camouflage plays in the survival of animals with a fun science lesson. Starting with an outdoor activity, children take on the role of hungry birds as they search for worms represented by...
Interactive
CK-12 Foundation

Whole Number Division: Pancakes

For Students 6th Standards
Given 13 pancakes and five plates, learners are asked to distribute the pancakes evenly among the plates. Is it possible? Will there be any remainders? These are the questions pupils are asked to answer after manipulating an...
Interactive
CK-12 Foundation

Factor Pairs: Flower Garden

For Students 6th Standards
Arrange the dimensions of Marissa's rectangular flower garden so that 12 flowers can be grown. How many factor pairs does the number 12 have? What dimensions are necessary for a square shaped planter?
Interactive
CK-12 Foundation

Addition of Integers: Polka Dots

For Students 7th Standards
What happens when you add negative and positive integers to one another? Do you add or subtract, and will the answer be positive or negative? Young mathematicians use blue and red polka dots to determine the value of an expression that...
Interactive
CK-12 Foundation

Standard Form of Linear Equations: Seesaw

For Students 8th - 10th Standards
Don't hem and haw, learn about equations using a seesaw. An easy-to-use interactive has pupils move a seesaw on a coordinate plane to investigate the standard form of a linear equation. By completing a set of challenge questions, they...
Interactive
CK-12 Foundation

Function Rules based on Graphs: Making Money in the Hat Business

For Students 8th - 9th Standards
Hats off to those learning about the graphs of functions. Individuals use an interactive to plot points representing profits for a hat business. They identify a quadratic equation to represent this function and answer challenge questions...
Interactive
CK-12 Foundation

Equivalent Fractions

For Students 3rd - 6th Standards
An interactive made up of five questions tests scholars' knowledge of equivalent fractions. Two fraction circles with moveable parts assist mathematicians in finding solutions. Questions are multiple-choice with one discussion. 
Lesson Plan
Curated OER

Sowing Seeds of Service

For Teachers 3rd
Third graders use metric measuring for model and actual plan in designing a roof garden. They photograph the process, record results in a journal, and plant seedlings in small containers. Finally, 3rd graders complete an acid rain...
Interactive
CK-12 Foundation

Tangent Graphs: Slope and Angle

For Students 10th - 12th Standards
Learning about tangents doesn't have to be a slippery slope. Pupils drag a point around a unit circle to see how angle affects the slope of a line. They individually answer a set of challenge questions to come to the conclusion that...
Lesson Plan
Curated OER

Graphic Accounts

For Teachers 6th - 12th
Students identify the use of different types of bar graphs. They analyze graphs used in the New York Times to compare the estimated cost of the war in Iraq to other hypothetical expenditures and reflect on how graphs can help illustrate...
Lesson Plan
Curated OER

Earth's Warming Climate: Are We Responsible

For Teachers 10th - 12th
Learners examine the atmospheric data for CO2. In this web-based atmospheric lesson, student follow instructions to examine and plot on-line scientific data about the CO2 levels in our atmosphere and analyze the changes found in the data.
Lesson Plan
Curated OER

The Android Factory

For Teachers 4th - 10th
Students explore the idea that primitive virtual 3D objects can be reshaped to infinitely original combinations using additive and subtractive methods. They create 3-D objects with a computer which necessitates a cooperation of...
Lesson Plan
Curated OER

Speed of a Forest Stream

For Teachers 7th - 12th
Students study stream speed.  In this stream speed instructional activity students complete an activity and formulate an opinion and study its effects.
Lesson Plan
Curated OER

Geometry House!

For Teachers 4th
Fourth graders use computer drawing tools to create a house of geometric shapes.