Curated OER
Using Trigonometric Ratios
Pupils solve problems using sine and cosine. In this trigonometry instructional activity, students apply the properties of sine and cosine to solve triangular problems. They identify when to use law of sines using angle-side relationships.
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Tax, Tip and Discount Word Problems
Students solve problems involving tax, tips and discounts. In this algebra lesson, students convert between percents and decimals. They calculate commission using conversion from percents and fractions.
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Two Terrains
High schoolers compare two cell phone providers and relate those concepts to motion. In this algebra lesson, students identify the unknown in a problem using variables. They calculate the velocity, motion and displacement of different...
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Robot Sketcher
Students analyze and solve word problems. In this algebra lesson, students explore their reasoning skills as they analyze a problems and come up with the correct steps to solve it. They create a plan and execute it correctly.
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Graph Creator
Students rewrite equations using algebraic symbols. In this algebra lesson, students graph linear equations using the slope and y intercept. They make predictions about their graphs and analyze the results.
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Circle Packing
Students identify different parts and properties of circles. In this geometry lesson, students identify the radius, diameter, semicircle and inscribed angle of a circle. They identify the tangent lines to a circle.
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Light Bounce
Students solve problems involving triangles. In this geometry lesson, students apply properties of triangles to find the missing angles and sides. They identify angles of parallel lines cut by a transversal.
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Hexagon Island
High schoolers identify different polygons. In this geometry lesson, students name polygons using the number of sides. They calculate distance and slopes using the correct formula.
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Square Graphs
Students identify the different properties of quadrilaterals. In this geometry-lesson, students define parallel sides and diagonals of polygons as they compare to a quadrilateral. They identify the methods to find the angles in a...
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Soccer Problem
Students solve problems with triangles. For this geometry lesson, students use the properties of triangles to solve problems. They identify the median, altitude and side vs angle relationship.
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Trigonometric Graphing
Young scholars analyze graphs. In this trigonometric lesson, students identify the different graphs of sine, cosine and tangent. They graph the inverse of those trig values and identify their properties such as phase shift and period.
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Isosceles Triangle Investigation
Students solve problems with isosceles triangles. In this geometry lesson, students identify and use the properties of triangles to solve their problems. They find the median, altitude, and angles to the triangles.
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Median
Students solve problems involving triangles. In this geometry lesson, students use the properties of triangles to find the angles and side. They identify the median and altitude of the triangle.
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Mirror Tool
Students define properties of polygons. In this geometry lesson, students differentiate between similar and congruent polygons. They identify and use the properties of solids to solve problems.
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Revolving Shapes Around an Axis
Learners design a wheel that could be used on a CO2 car. In this engineering instructional activity, students investigate cylinders and volume as they perform rotation around an axis. They create patterns using circular turns about an axis.
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Tower of Hanoi
Pupils create a plan to solve word problems. In this algebra lesson, students identify important steps to take when setting up a word problem. They relate algebra to the real world.
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Simson Line
Stuednts identify triangles for the Simson Line. In this geometry lesson, students solve triangular problems using the properties of triangles.They differentiate between the height, congruency and similarity.
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Location, Location, Location
Learners investigate the properties of triangles. In this geometry instructional activity, students identify the location of different polygons. They identify the different properties of triangles and polygons.
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Power of a Point
Young scholars solve problems by finding the radius or diameter. In this geometry lesson, students identify the tangent line of a circle and use properties of circles to find the radius. They relate circles to the real world.
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Diagonals to Quadrilaterals II
Young scholars identify the properties of different polygons. In this geometry lesson, students find the slope of a line and calculate the distance between two lines. They differentiate between similar and congruent polygons.
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Line, Ray, Segment
Learners define vocabulary words. In this geometry lesson, students identify the graph as a line, ray or segments. They understand the properties of each and calculate the distance on a number line.
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Perpendicular Lines
Students differentiate between parallel and perpendicular lines. In this geometry lesson, students identify the different angles created by perpendicular lines and parallel lines. They name the angles that are form when parallel lines...
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Tube Viewer Simulation
Learners graph linear equations. For this algebra lesson, students discuss the effect the change in one variable has in an equation. They discuss the effect equations have if you chage the value of the variable.
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Angle Bisectors
Students identify different angles. In this geometry activity, students identify different properties of triangles. They find the altitude, median and angle bisector.