Curated OER
Arc Length and Sectors
Find the length of an arc. High schoolers relate central angles to the area and length of a sector and graph circles on the TI to make predictions.
Curated OER
Inequalities
In this inequalities worksheet, 10th graders solve and complete 23 various types of problems. First, they find the area of an inscribed square in a circle shown. Then, students find the total area of the inscribed polygon and deduce...
Curated OER
Peppered Moth Simulation
Learners investigate the process of natural selection in peppered moths. In this natural selection lesson plan, students simulate peppered moths in environments similar to those during the industrial revolution. Learners use white paper...
Curated OER
Geometric Figures
In this geometric figures worksheet, 10th graders solve and complete 18 different types of problems that include various figures. First, they find the area of the figures shown if consecutive sides are perpendicular. Then, students find...
Curated OER
Radian Measure
Young mathematicians identify central angles, arcs and radius of circles in this pre-calculus lesson. They identify the proportion of the circle based on its radius while they convert between degrees and radians measurements.
Curated OER
Real Numbers: Care Homework #8
In this real numbers worksheet, students perform the given operation with decimals, whole numbers, and fractions. They find the area and perimeter of circles. Students determine the volume of cylinders. This three-page worksheet contains...
Curated OER
The Theorem of Pythogoras
In this geometry worksheet, students solve right angle triangles using the Pythagorean Theorem. They calculate the area and sides of triangles and circles. There are 52 questions total.
Curated OER
Count and Trace the Shapes
In this counting and tracing shapes worksheet, students trace 13 shapes with specific colors. Students count how many ovals, rectangles, triangles, squares and circles there are and put their totals on the lines provided. A very good...
Curated OER
The Merry Go Round Problem
In this algebra worksheet, 9th graders analyze a concetric circle to determine the area a worker must paint in two different colors. They must decide from which angle he start painting because of the location of the merry go round. There...
Curated OER
Spitzer Sees a New Ring Around Saturn
In this Saturn's rings worksheet, students read about the Spitzer telescope that detected a new ring around Saturn. Students solve 6 problems including determining the formula for the area of a circle, finding the volume of the new ring...
Curated OER
Counting Craters on the Hubble Space Telescope!
In this Hubble Space Telescope worksheet, students are given a photograph of the radiator recovered after being in space on the Hubble Space Telescope since 1993. Students solve 6 problems about the impacts that left craters on the...
Center for Innovation in Mathematics Teaching
Trigonometry
This unit covers the basic trigonometry including understanding radians, how to convert between radians and degrees, the area of a circle subtended by an angle, basic properties and graphs of sine, cosine, tangent, and solving...
Curated OER
Hula Hoop Biodiversity
Learners determine the biodiversity in a variety of different areas. They record everything they can about their site- including drawing a picture of all the different plants they see in their hula hoop, in the circle on their page.
Texas Instruments
REAL LIFE REAL WORLD Activity - Surveyor
Learners investigate surveying in this secondary mathematics lesson. They will explore a real world application of geometry and trigonometry as they create a plot plan using a geometry utility and calculate the area of the land parcel.
Curated OER
Care Homework #7
In this care homework worksheet, students add, subtract, multiply and divide integers. They multiply and divide fractions. Students complete percent problems and determine the area of polygons. This three-page worksheet contains 24...
Curated OER
Abiotic and Biotic Factors
Learners examine abiotic and biotic factors. They define biotic and abiotic, categorize a list of items onto a Venn diagram, label various items from areas on the school grounds as biotic or abiotic, and diagram a magazine picture.
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Angles and Arcs
Students identify the relationship between angles and arcs. For this geometry lesson, students rotate and move the circle around to create different arcs on the TI-Navigator. They differentiate between major and minor arcs.
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Estimating Pi as a Length
In this pi learning exercise, students evaluate the curve of a quarter of a circle. They analyze the length of the curve, and explain that if the area under the curve is equal to pi, the length of the curve above is also equal to pi....
Curated OER
Around The Stop Sign
Young scholars analyze a drawing of a regular octagon inscribed in a circle to determine angle measures, using knowledge of properties of regular polygons and the sums of angles in various polygons to help solve the problem. They use...
Curated OER
Time for Technology Glyphs
Students create a time for technology glyph using Kidpix4. They complete a circle map on things they like to do on while on the computer and write about their favorite thing to do while on a computer.
Curated OER
Thanksgiving Acrostic Poems
Students watch streaming video, Holiday Facts and Fun: Thanksgiving, define and discuss acrostic poetry, complete circle map using words associated with Thanksgiving, and create acrostic Thanksgiving poems to be typed in Microsoft Word...
Curated OER
Composition of the Atom
Students investigate the structure of the atom and its composition. In this atom structure lesson, students find the area of cut out circles and drop pens into the circles. They count the number of marks in the circles and relate their...
Curated OER
Going into the Great North
Students observe and investigate the areas included in the Great North. In this geography instructional activity, students observe a documentary based on the Great North. Later the students will draw and identify countries within the...
Curated OER
Positive and Negative Angles and Arcs
To better understand that the intersection point of two lines lies inside a circle, learners use their keen measurement skills. They discuss arcs, rays, tangent lines, and reflex angles. Then, they put their skills to work as they...
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