Curated OER
Pythagorean Theorem
Eighth graders draw right triangles and identify the parts of a right triangle: right angle, interior and exterior angles, hypotenuse and legs. They predict and identify any relationships that exist between the sides of a right...
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Similarity
Students find the factor of proportionality in similar polygons. In this similarity of polygons lesson plan, students measure the sides and angles of polygons and derive a factor of proportionality between corresponding pairs of sides...
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Build a Weather Vane
Third graders measure wind direction. In this weather lesson, 3rd graders build a weather vane from a straw, skewer, spool, and flag. Students measure wind direction using their weather vane.
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Cooking Cranberry Pudding
Young scholars explore colonial cooking. In this cross curriculum George Washington and colonial America history lesson, students follow a recipe for cranberry pudding, a possible favorite of George and Martha Washington. Young scholars...
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Algebra 2 & Trigonometry Practice: Law of Sines
In this law of sines worksheet, students solve 9 multiple choice and short answer problems. Students use the law of sines to missing side lengths and angles of triangles.
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Perpendicular Segments in a Circle
High schoolers explore the concept of circles as they construct a circle using a program such as Cabri Jr. Learners construct a chord and a diameter that are perpendicular, then measure the bisected chord and notice that both sides of...
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Investigating Segments in a Right Triangle
High schoolers explore the concept of right triangles as they construct a right triangle using Cabri Jr. Learners find the midpoint of the hypotenuse and construct a line from the midpoint to the vertex of the right angle. They then...
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Weather Dot Com
Students examine the need for a standard unit of temperature and measure temperature with a thermometer. They discuss the details of a thermometer and the calibrations used, record temperature data for inside and outside, explore...
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Telling Time
Students estimate, measure, and compare the passage of time using minutes, half hours, and hours. They read the book 'It's About Time, Max!' with the teacher and draw an analog clock face. They show the time and 30 minutes later, 15...
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Exploring the Centroid of a Triangle
Pupils examine the centroid of a triangle as they use Cabri Jr. to construct a triangle and its medians. The dynamic nature of the software allows learners to measure the lengths of the segments in the triangle and conjecture and verify...
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Proportions
Middle schoolers perform mathematical operations to create proportional measurements, after listening to the David Schwartz book, If You Hopped Like a Frog.
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Scaling Down the Pyramids
Students construct three-dimensional models of the three pyramids at Giza. They research the building of the pyramids and record the height, base and angle measurements of each pyramid. They create a file of facts regarding the pyramids.
Discovery Science Center
Kindergarten Observing, Comparing and Contrasting
Although this is a science lesson, it can be adapted to help meet Common Core standards in math as well. Starting scientists describe physical properties of objects and explore three forms of water. To address the Common Core, they can...
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Hop To It!
Young scholars explore grasshoppers. In this grasshoppers lesson, students measure the jumping distance of live grasshoppers. Young scholars then record the jumping distance of people in their group. Students record the distances and...
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A Day to Remember!
Students study math. In this real-life problem solving lesson plan, students work on their skills dealing with time and money. They work in small groups on various time and money word problems and by the final day they have a final...
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Earthquake Patterns
Students identify and interpret the cyclical nature of the Parkfield, California earthquakes. They then investigate and graph earthquake occurrences on the Mojave segment of the San Andreas fault and then on the Hayward fault in order to...
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Lesson 9-3 Practice B: Composite Figures
In this composite figures worksheet, young scholars solve 11 short answer problems. Students find the area of figures composed of various polygons. Young scholars find the area of each figure given a sketch of the figure with various...
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Congruent Trianges - Is This Enough Information?
Seventh graders determine whether two triangles are congruent and provide an explanation to why they are not. They apply concepts of measurement of angles and collect evidence of congruent angles in the world.
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Making/Building Kites
Students explore kite making. For this cross curriculum fine arts and ancient Chinese history lesson, students activate prior knowledge about how kites were used in ancient Chinese culture. Students sketch an original kite design, then...
Texas Instruments
Investigating Segments in a Quadrilateral
Investigate the properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral. In this properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral lesson, young...
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Investigating Area Relationships
Learners investigate the area of various figures. They construct triangles and quadrilaterals using Cabri Jr. and discuss the relationships between different angles, side lengths, and figures.
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Study Buddies: Perimeter
In this math worksheet, students will work with a coach to solve a story problem in which they must find the perimeter of two gardens. Students will follow a step-by-step process and notes are provided for the coach.
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Shapes (Geometric)
Second graders explore geometric shapes. In this lesson plan about geometry, 2nd graders create their own vest using geometric shapes. Students work with a partner and fit their partner for the vest they design. Students understand...
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The Difference of 2 Squares
Students factor a difference of two squares. For this factoring a difference of two squares lesson, students use manipulates cut from a piece of paper to illustrate the difference of two squares. Students illustrate the concept by...