Curated OER
Angles and Arcs
Learners discuss the sum of central angles and use string to create them on circles. They find the measure and length of both minor and major arcs.
Students give examples of concentric, similar, and congruent circles and congruent arcs.
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Investigating Pot Sherds
Sixth graders measure pot sherds and use their knowledge of Pi to infer possible uses of pottery. They also infer possible functions of ancient ceramics. After tracing rounded pottery pieces onto paper, 6th graders use compasses to...
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Sir Cumference and the Dragon Pi
Geometry adventurers study circumference of a circle as they listen to Sir Circumference and the Dragon Pi, by Cindy Neuschwander. In groups, they use string to measure the diameter and circumference of circular objects and...
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Math: Arcs and Chords
Students draw diagrams demonstrating how it is possible to two central angles to be congruent and their minor arcs are not congruent. In groups, they illustrate theorems with their constructed circles, create diameters of circles that...
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Inscribed Angles
Pupils analyze inscribed angles and intercepted arcs and explore the relationships between the two. They investigate the properties of angles, arcs, chords, tangents, and secants to solve problems involving circles.
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Investigation of Pot Sherds
Fourth graders review their prior knowledge on the concept of pi. Using broken pieces of pottery, they calculate the circumference from a section of the circle. In teams, they compete against one another to get the most accurate...
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Bill's Badge
Learners explore the making of circles and concepts related to them in geometry. The project is inquiry based will focus upon students making their own nametags. The construction is ideal for hands on learners.
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Geometric Figures
Students compare, classify and calculate the area of geometric figures such as rectangles, squares, circles and triangles.
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IS A BLUE WHALE THE BIGGEST THING THERE IS?
First graders explore measurement in relation to size of objects.
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Mystery Card 2
Pupils make a circuit on a mystery card. They then use an electrical tester to determine where electricity flows between circles on the card. They will connect wires, bulbs, and a battery to form an electrical tester.
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Mystery Card 1
Pupils test their knowledge of electrical conductors and circuits by constructing an electric tester and using it to determine where electricity flows between circles on a mystery card.
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William Grant Still: "Afro-American Symphony"
Students learn basic improvisation of a four beat measure through a game using a four quarter note pattern. NOTE: The idea in this instructional activity is to teach the student to create something on the spot.
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William Grant Still: "Afro-American Symphony"
Students learn basic improvisation of a four beat measure through a game using a four quarter note pattern. NOTE: The idea in this lesson is to teach the student to create something on the spot.
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Basic Geometric Constructions
Students observe and demonstrate a variety of basic geometric constructions using the Triman Safety Compass. Using the compass, they draw circles, bisect a line segment, construct an angle, bisect an angle, copy an angle, and create...
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Making A Felt Pouch
Young scholars are engaged in the making of a felt pouch. They complete the project with the aid of the teacher because the instructional activity is meant for the Special Education population. Students answer the following focus...
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The Derivation of (Pi)
Seventh graders groups measure the diameter and circumference of each of the circular objects in the room. They record their results on their student worksheets and access a computer spreadsheet program to compile their results.
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Geometry: Lesson 2
Eighth graders engage in a lesson that is concerned with examining two dimensional figures with different properties that include circles, triangles, queadrilaterals, etc... They identify the types of figures that is identified as polygons.
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Timed Multiplication Test Graphs
Students use the tools of data analysis for managing information. They solve problems by generating, collecting, organizing, displaying histograms on bar graphs, circle graphs, line graphs, pictographs and charts. Students determine...
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Perimeter and Area of 2D Shapes
Students find the perimeter and area of circles, triangles, and rectangles. In this perimeter and area lesson plan, the teacher gives students formulas for each shape and measurement and works through examples on the board. While no...
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Flying Objects
Young scholars apply measurement techniques to create a flying object. They measure, draw, and cut out a flying wheel out of a six inch card.
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River Width
Students determine the level of accuracy needed for computations involving measurements and irrational numbers. They use the correct number of digits in computation to achieve an appropriate unit or level of accuracy when solving...
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Parachutes: Is it Surface Area or Shape?
Students investigate how to make a good parachute. In this physics lesson, students observe the motion of parachutes as it falls and measure the time. They collect data and calculate the average descent time for each canopy shape.
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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...