Curated OER
Ratio and Proportion
Students investigate ratio and proportion. In this middle school mathematics lesson, students write ratios and find equal ratios. Students use ratio and proportion to distinguish between healthy and unhealthy body proportions.
Curated OER
What Are We Listening To?
Middle schoolers gather data from a web site on number of music albums sold by genre for the last two years. They convert these figures to fractions, decimals, and percents, and display the results in bar graphs and pie charts.
Curated OER
Tessellations
Seventh graders investigate geometric shapes using tessellations. In this geometry lesson, 7th graders practice tessellations using different shapes. They create different designs using tessellations.
Curated OER
Scale factors: Ratios and Proportions
Pupils create building and models using scale factors. In this geometry lesson plan, students apply the properties of ratio and proportion to solve problems. They identify the means and extremes property of cross multiplication.
Curated OER
Space: Your Future Frontier?
Students explore careers in space and experience how math and science concepts are applied in the space program through an interactive video and cooperative group activities.
Curated OER
Why Study Fractals?
Students explore the concept of fractals. In this fractals lesson, students use the website to research where fractals occur in nature. Students research what fractals are and how fractals are used to solve real world problems.
Curated OER
Investigating the Idea of Tan
Fifth graders use tan to solve problems involving right-angled triangles. They solve equations of the form tan(8) =a, for a between 180 degrees and 360 degrees. They state the value of tan (8) in special cases.
Curated OER
Our Class Record Book
Second graders, in groups, prepare a list of proposed record ideas for the class book.
Curated OER
Trigonometric Applications Outside the Classroom
Fifth graders describe and demonstrate how trigonometry can be used to find the height of a tall building or tree. They describe and demonstrate how trigonometry can be used to find the height of a high hill, or other high object where...
Curated OER
Charting The Progress of New Horizons
Learners explore the long distances and timescales involved in space travel. They track the progress of the New Horizons spacecraft and access the New Horizons website to discover the distance of the spacecraft from the Sun, and then...
Curated OER
Just How Small is a Nanoparticle?
Students determine the size of a nanoparticle. In small groups, they calculate the actual size of a particle shown in a photo, and discuss how they arrived at their answers.
Curated OER
Earthworm Movement and Landscape Structure
Students describe differences in animal usage of habitats depending upon successional status of site. They also design other experiments to test movement patterns of animals through habitats of differing structure.
Curated OER
Galloping Who?
Third graders do an Internet search to find out about Galloping Gertie and what caused the bridge to fail.
Curated OER
Area and Perimeter
Students participate in a hands-on activity that shows the independence of perimeter and area for simple irregular figures.
Curated OER
Math: Road Trip
Twelfth graders use road maps to calculate the distance between two locations. They estimate the cost for fuel and the miles per gallon. They consider other factors such as geography, road conditions, and traffic that may impact the cost.
Curated OER
To Float or Not to Float - A Lesson on Density
Students define density in their own words. In this physics lesson, students calculate density using mass and volume. They explain why some objects sink and some float.
PBS
Pbs Kids Afterschool Adventure!: Operation: Adding Up, Taking Away Activity Plan
In this week's Afterschool Adventure, children will practice and explore strategies for solving addition and subtraction problems, such as using counters and rulers, performing mental math, and drawing pictures. As children encounter...