CK-12 Foundation
CK-12 Middle School Math Concepts - Grade 6
Twelve chapters cover a multitude of math concepts found in the Common Core standards for sixth grade. Each title provides a brief explanation of what you will find inside the chapter—concepts from which you can click on and learn more...
Curated OER
Solve for Scale Factors Using Proportions
Eighth graders solve problems using proportions with scaled drawings. They work with maps and blue-prints discussing scales and plans and examine different polygons and figure out the scale factors or proportions they have been changed by.
Curated OER
Balancing the Scales: Understanding Ratios
Students are introduced to the concept of ratios. In groups, they convert sets of numbers into a ratio. After practicing, they use the ratios and proportions to solve story problems. They also calculate map distances and discover map...
Curated OER
Johnny Appleseed Walkabout
Second graders calculate mileage for a journey. In this place value and measurement lesson, 2nd graders read Johnny Appleseed, work in groups to locate his birthplace on a map, locate the other states he stopped in, and measure the...
Curated OER
Reading distance on maps
Eighth graders complete worksheets on reading the distance on maps in miles or kilometers. In this maps lesson plan, 8th graders use a calculator and ruler.
Curated OER
Math: Checking Scale Drawings for Accuracy
Pupils critique their own drawings for accuracy and make constructive suggestions prior to reworking them. They discover how scale in maps and drawing relate to relative size and distance. In addition, students comprehend the...
Curated OER
Separate Vacations
High schoolers plot the migration paths of birds using latitude and longitude data from a table.
Curated OER
Where Is Japan? How Far Is That?
First graders use literature and hands-on activities with maps and globes to explain distance and tools used to measure distance. They select tools to measure various objects in the classroom, then apply those concepts to their map...
Curated OER
Measurement Review
Students measure the distance between two points. In this measurements lesson, students read books about birds that migrate and measure the distances that each bird flies when it migrates. Students discuss the information as...
Curated OER
Classroom Supplies
Challenge young mathematicians to buy classroom supplies by staying within the means of a $1,000 budget. The mathematical activity provides learners with the opportunity to decide what items from the supply list would benefit a class of...
Curated OER
Where Should You Turn?
Fourth graders complete activities to study decimal numbers. In this decimal numbers lesson, 4th graders study decimal numbers to express numbers less than one and intervals. Students complete map and location activities to study the...
Curated OER
What's Its Slope
Students identify the slope of a lines.In this algebra lesson, students define the meaning of slope and write an equation given the slope. They graph linear functions using the slope and y-intercept.
Curated OER
Get Ready for the Great Outdoors!
Learners discuss what is a map and what they already know about maps. They brainstorm together to compile a list of responses for the board and observe a map of the United States, including states, capitals, and some of the National Parks.