Curated OER
Perimeter Patterns
Sixth graders calculate perimeter of rectangles with different dimensions. In this perimeter instructional activity, 6th graders define length, width and perimeter. Students complete a perimeter activity using a web tool to...
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Set Design
Young scholars explore proportional reasoning. In this middle school mathematics lesson students investigate scale drawings as they create a proportional representation for the carvings on Mt. Rushmore.
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Perpendicular Bisector of a Line Segment
High Schoolers investigate the perpendicular bisector of a line segment. They use Cabri Jr. to construct the perpendicular bisector of a segment. The dynamics capabilities of Cabri Jr. allow your learners to observe the lengths of the...
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This Is a Stick Up
Students create a sundial and track the movement of the sun throughout the day. Modifications to the lesson are provided for both lower and upper elementary students.
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Making Simple Conversions
Fourth graders explore unit conversions. They create visual models of measurement units, identify tables of equivalent units and make simple conversions with in a measurement system. Students produce charts that identify units of measure...
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Egg Hunt
Students make detailed qualitative and quantitative observations. They are introduced to the process of developing repeatable procedures. Students practice collecting data. They review measurement skills. Students become familiar...
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Frog and Toad are Friends
Learners view a 30-minute video lesson to discover information about the characteristics of frogs and toads. They then transform themselves into frogs and participate in a Jumping Frog Jubilee. They work in groups of three to measure and...
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Triangle Conjectures
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry instructional activity, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles...
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Swimmy's Friends
Students solve problems using various strategies. In this problem solving lesson, students read the book Swimmy by Leo Lionni. Students make fish swimming patterns, measure how many goldfish crackers it takes to make a handprint and...
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Periodic Motion - The Pendulum
Students experiment to determine the period of a pendulum. In this periodic motion lesson, students use different pendulums to determine their periods. They use various amplitudes to determine its effects on the period.
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Eating Through the Metric System
Seventh graders convert measurements in recipes to metric measurements and prepare the food items. They create a metric measurement cookbook.
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Timekeeping by the Sun
Students measure shadows to learn about the Sun-Earth relationship. In this astronomy lesson, students create a shadow stick of a Pokemon character and record measurements of its shadow in a data chart. Follow-up discussions guide...
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The Law of Sines
Students define the laws of sine as it relates to a right triangle. In this trigonometry lesson, students identify the properties of sine to help then find mixing sides of a right triangle. They also solve for the missing angles.
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Area: Algebra/Geometry Institute Summer 2009
Learners compute the area of a rectangle. In this area lesson, students measure the sides of rectangles and squares. They cut figures, measure them, and determine the area of each given figure. Learners justify their...
Pennsylvania Department of Education
Volume of Regular and Irregular Objects
Fifth graders examine patterns and relate to equations to solve math problems. In this patterns lesson, 5th graders diagram, graph, use models and use tables to solve equations for real world problems.
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Ratios in Right Triangles
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...
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Can You Carry a Tune in a Bucket?
Students use water filled pipes to play a tune and consider the mathematics behind the sound waves. In this sound wave instructional activity, students play a tune with water filled pipes. They create a mathematical model to evaluate the...
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Triangle Midsegment
Learn how to calculate the length and midsegments of triangles. Students differentiate between similar and congruent triangles. They create a spreadsheet with their findings.
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Design Your Dream Room
Students determine length, width, perimeter, and surface area, and work with two-dimensional representations of three-dimension objects to design and write descriptions of their dream bedrooms.
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Discovering the Magical Pi
Young scholars calculate pi using data on the circumference and diameter of various objects. They define key vocabulary terms, measure the circumference and diameter of various circular objects, organize the data on a table or chart,...
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Who's got the fastest legs?
Learners use a stopwatch to collect information for a scatterplot. In this fastest legs lessons, students collect data through the taking of measurements, create and find a median number. Learners develop an equation and...
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Safe Driving Solutions
Young scholars act as commissioners researching needed safety standards for vehicles and highways. They then draft recommendations to be included in a new highway safety bill. They cite reasons a particular measure would reduce fatal...
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Stories from Africa
Students discuss the size of adult African elephants after a demonstration on their height. They try to guess the animal of discussion based on clues given about their size and characteristics. As a class, they try to identify other...
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Secants, Tangents and Arcs
Students identify chords and angles. In this geometry instructional activity, students calculate the length of the chords inside and outside of-the circle. They differentiate between tangent and secant lines.