Curated OER
Proportion Problems
Seventh graders explore the concept of proportions. For 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...
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The Corner Problem
Students explore the concept of the corner problem. In this corner problem lesson, students use the TI-NSpire to determine the maximum length a rod can be and still pass horizontally around a corner. Students use similar triangles to...
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Misleading Graphs
Students explore number relationships by participating in a data collection activity. In this statistics instructional activity, students participate in a role-play activitiy in which they own a scrap material storefront that must...
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Currency and Exchanges Rates
Seventh graders examine currency rates. In this exchange rate lesson, 7th graders visit selected websites to determine the exchange rates between specified currencies.
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Triangle Exterior Angles Theorem
Students identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Calibrating a Roverbot
Pupils build and program a Lego Mindstorms Roverbot to travel for a given amount of time. They gather data on time versus distance traveled to determine a calibration constant for their robot, which relates time to distance.
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Follow the Pattern
Students survey patterns and relationships and then predict outcomes in real-world situations.
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Functions
Students explore a variety of functions. They recognize and describe functions and use linear functions to describe situations. Students find the domain and range of linear functions and graph rational expressions.
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Help Wanted: A Lighting Engineer For Popular Rock Group
Students are assigned to groups, and determine each member's role in the group. They will design an experiment to determine a way to produce the three primary and five secondary colors. Students discuss color and mood. They listen to a...
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Snell's Law (And Then Some)
Students conduct an experiment to test Snell's Law using a block of lucite and a ray box. They measure the light rays as they impinge upon the block. Students are also asked to draw the situation of the lab or create a model of the...
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Functions and Logarithms
For this function and logarithm worksheet, students use functions and logarithms to find the sum of digits in a given series. They determine the value of an expression and find the distance between the points of intersection. This...
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Punch Mix-up
Fifth graders discuss the relationship between equivalent fractions, ratios, and proportions. In this fraction lesson, 5th graders answer questions about a punch mixture in order to find the ratio of ingredients.
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Cups and Cubes
Third graders explore the use of cups and counters as a model to analyze the effects of operations. They create and use a rule to create a sequential pattern and use cups and cubes to model the relationship.
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Points in a Complex Plane -- Lecture
Learners review plotting points on a coordinate plane. Individually, they add and subtrace complex numbers and graph them in a complex plane. They follow along a worksheet while their teacher lectures on the new material and solve...
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Combined Gas Law
Students learn the combined gas law, undersand how it incorporates all of the different relationships that they have already learned, and manipulate it to solve numberical problems.
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Parabola
Students complete a worksheet and explore the parabola conic section during a web based activitiy. They answer questions based on their work as they make changes in the features of the parabola.
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Polygonal Strings
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...
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Nested Requests
Students apply the problem solving skill of Request-Response-Result in word problems where the requests are nested. They practice using the technique and determining when it is appropriate to be used.
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Square Milk Bottle Crates
Students attempt a problem that Students has the potential to have more than one solution. Hence the problem is accessible to a wide range of students. The problem is essentially about finding patterns and this is typical of a number of...
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Points in the Complex Plane -- Lab
Students review the lecture portion of this lesson. Individually, they graph various points on a complex plane and identify conjugates based on their location on the graphs. They complete a worksheet and review their answers to end the...
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Problem Solving in Mathematics
Seventh graders discover that there are multiple strategies to be used in problem solving. They explain a problem solving situation in their own words and determine a possible strategy for solving the problem.
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Introduction To Data Analysis
Seventh graders investigate the concept of looking at the data put in a variety of ways that could include graphs or data sets. They analyze data critically in order to formulate some sound conclusions based on real data. Students graph...
Alabama Learning Exchange
The Composition of Seawater
High schoolers explore the concept of finding the composition of seawater. In this finding the composition of seawater instructional activity, students make a saturated salt water solution. High schoolers discuss why there is...
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Virtual Field Trip / Route, Mileage and Gasoline Cost Graphs
Pupils use a spreadsheet program to graph and compare milage, gasoline costs and travel time for two travel routes in their virtual field trip in Michigan. They determine the most economical route based on the graphs and calculations.