Illustrative Mathematics
Similar Triangles
Proving triangles are similar is often an exercise in applying one of the many theorems young geometers memorize, like the AA similarity criteria. But proving that the criteria themselves are valid from basic principles is a great...
Mathematics Assessment Project
Designing 3d Products: Candy Cartons
Wouldn't it be great to work in a candy factory? Learners get their chance as they first design a carton for a candy that meets certain requirements. They then examine and analyze nets and explanations in sample student responses.
Mathematics Assessment Project
Comparing Strategies for Proportion Problems
Having problems with proportions? Then solve these proportion problems with an exercise that asks learners to first individually solve a set of problems involving ratios and proportional reasoning. Groups then discuss provided...
California Mathematics Project
Reflections
Reflections are the geometric mirror. Pupils explore this concept as they discover the properties of reflections. They focus on the coordinates of the reflections and look for patterns. This is the third lesson in a seven-part series.
Statistics Education Web
The United States of Obesity
Mississippi has both the highest obesity and poverty rate in the US. Does the rest of the data show a correlation between the poverty and obesity rate in a state? Learners tackle this question as they practice their skills of regression....
Statistics Education Web
Text Messaging is Time Consuming! What Gives?
The more you text, the less you study. Have classes test this hypothesis or another question related to text messages. Using real data, learners use technology to create a scatter plot and calculate a regression line. They create a dot...
National Security Agency
Multiple Representations of Limits
After an introductory activity to demonstrate the theory of a limit, additional activities approach a limit from graphical, numerical, and algebraic methods. The activity looks at the multiple ways of understanding and evaluating a...
Alabama Learning Exchange
Building Functions: Reverse to Inverse
Reverse the wrapping to get to the gift. Using the idea of unwrapping a gift, the activity introduces the concept of inverses. Pupils first determine the order needed to evaluate a function at a point, then use the reverse to find the...
National Research Center for Career and Technical Education
Depreciation (Double Declining)
Have you ever been told that your new car begins to lose its value as soon as you drive it off the lot? Aspiring accountants take on the concepts of depreciation and book value through an easy-to-deliver career and technology...
National Research Center for Career and Technical Education
Break-Even Point
How do companies determine the prices of their products? Marketing maestros discover the concepts of cost and break-even point through discussion, independent practice, and a collaborative assessment. The career and technology-oriented...
American Statistical Association
Confidence in Salaries in Petroleum Engineering
Just how confident can we be with statistics calculated from a sample? Learners take this into account as they look at data from a sample of petroleum engineer salaries. They analyze the effect sample size has on a margin of error and...
Gwinnett County Public Schools
Analysis of the Tuck Everlasting and The Birchbark House Text Exemplars
Looking to introduce some text-based questions into your ELA lessons? Practice the kinds of skills the Common Core demands with the seven text-based questions and the essay prompt provided here. Designed to be a three-day instructional...
Teach Engineering
How a Hybrid Works
Work with your class to connect series and parallel circuits to hybrid cars. The lesson introduces basic circuit diagrams before having scholars apply the understanding of the difference between parallel and series circuits to...
Curated OER
Kinzi Deaf Alumni
Students use data of school alumni to create a database. The instructional activity uses technology and access to a computer lab is essential. The concepts of graphing statistics is also used to help teach across the curriculum.
Teach Engineering
Exploring the Forces of Tension
Let the resource stretch the minds of your young scientists with a lesson about tensile strength and stiffness of materials. Groups consider how easily materials stretch and relate this property to engineering design.
Teach Engineering
The Advantage of Machines
Show your students how to make their work easier. The first lesson in a series of 10 introduces the class to work and the way simple machines can be make work easier. The simple machines scholars can find in everyday items are...
Teach Engineering
Discovering Phi: The Golden Ratio
Fe, phi, fo, fum. This activity leads pairs to find the ratio of consecutive terms of the Fibonacci sequence. The pairs find that the Fibonacci sequence can be found in many places. A discussion with the class shows that the ratios...
Curated OER
Money Math: Lessons for Life
Students develop a budget for a college student using all of the influences that the student would have. In this budgeting lesson plan, students use real life examples to create a budget spreadsheet. Students read and study...
Curated OER
Data, Data, Everywhere... and What Am I To Think?
Students demonstrate good random sampling techniques for data collection, select and develop graphic presentations of data and analyze the data to solve a problem presented.
Curated OER
Money and health
Students write a proposal with an appropriate budget to establish a health day at school. They design this day to educate and promote good health. They educate other students about health care, inform students of health concerns, and...
Curated OER
Bunny Cakes and Graphing
Third graders graph and analyze data relating to the book "Bunny Cakes" by Rosemary Wells. They listen to and discuss the book, vote on their favorite cake using Excel computer software, and discuss the results.
Curated OER
Wheels for Jack and Jill
Students design, make and appraise a model wheeled vehicle that is capable of carrying a small load. This activity is part of the unit `Wheels in motion'.
Curated OER
Shapes and Colors All Around
Students tour their school in a scavenger hunt to find primary colors and two and three-dimensional shapes. Students take digital pictures of the colors and shapes they find and create a class book of the pictures.
Curated OER
Data Analysis and Measurement: Ahead, Above the Clouds
Students explore and discuss hurricanes, and examine how meteorologists, weather officers, and NASA researchers use measurement and data analysis to predict severe weather. They plot points on coordinate map, classify hurricanes...