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Illustrative Mathematics
Finding an Unknown Angle
Teach your class how to apply their knowledge of geometry as they explore the unknown. In order to find an unknown angle, students must understand that rectangles have four interior right angles, that right angles have 90 degrees, and...
Curated OER
Building a Quadratic Function Form
Comparing the movement of graphs geometrically when small changes are made to the parent function motivates this collaborative discussion on the transformations of functions to their various forms. Vertical and horizontal shifts due to...
National Council of Teachers of Mathematics
Scale Factor
Does doubling mean everything doubles? Learners adjust the scale factor between two rectangles. Using the calculated measurements, pupils investigate the ratios between the lengths, perimeters, and areas of the rectangles.
Shodor Education Foundation
Incline
Study velocity while examining graphical representations. As scholars work with the animation, they discover the effect the height of an incline has on the velocity of the biker. They make conclusions about the slope of the...
Shodor Education Foundation
Overlapping Gaussians
Adjust the overlap to compare probabilities. Using sliders, learners adjust the shape of two Gaussian curves. The interactive calculates the area of the left tail for one curve and the right tail for the other. Pupils set the interactive...
Statistics Education Web
The Egg Roulette Game
Hard boiled or raw? Which egg will you get? A hands-on activity has scholars explore the impact of conditional probability. Based on a skit from the Tonight Show, pupils model the selection of the two types of eggs using beads. They...
Shodor Education Foundation
Graph Sketcher
Sketch graphs with the Graph Sketcher. Scholars graph functions on a coordinate plane. An interactive makes it as easy as inputting the function and clicking a button.
Curated OER
Investigating Velocity Effects at Takeoff
Students use, with increasing confidence, problem-solving approaches to investigate and explain mathematical content. They make and test conjectures. They use tables and graphs as tools to interpret expressions, equations, and inequalities.
Curated OER
Modular Mathematics
Middle schoolers are introduced to modular mathematics. They start by making clocks for different bases. They use their clocks to count, using the base, and then finding the mod or remainder. They explore both positive and negative...
Alabama Learning Exchange
Explore the Transformations of Linear and Absolute Value Functions Using Graphing Utilities
Students explore the concept of transformations. For this transformation lesson, students use an applet that is an interactive absolute value graph applet. Students manipulate the applet to examine the change in the function...
Curated OER
Estimation Lesson Plan
Students use four different computer estimation applets with several classroom estimation activities.
Curated OER
Area Lesson Plan
Learners manipulate a variety of materials and computer applets in order to explore area and the units used to measure it.
Curated OER
Fraction King Lesson Plan
Students combine imagination, block manipulation, and computer applets to investigate fractions.
Curated OER
Venn Diagram Lesson Plan
Young scholars use Venn diagrams in order to classify different objects and numbers. They then use "Venn Diagram Shape sorter" applets on the computer.
Curated OER
Mine Lesson #1: Slope slider
Eighth graders investigate linear equations. In this Algebra I lesson, 8th graders explore the effects that manipulating a linear equation has on the graph of the function through the use of a java applet.
Curated OER
Symmetry: Theory, Reality and Art!
Students explore the concept of geometric symmetry. In this geometric symmetry lesson plan, students walk around their school and take pictures of objects that demonstrate symmetry. Students use Microsoft Paint to draw the lines of...
Curated OER
Angles Lesson Plan
Students stud angles, and then play the "What's Your Angle?" game. They complete at least 10 computer generated problems from the Angles Applet.
Curated OER
Triangle Explorer
Students calculate the area of triangles using a variety of materials including computer applets.
Curated OER
Patterns in Fractals
Students explore the concept of fractal patterns. In this fractal pattern lesson, students use an applet about the Hilbert Curve to answer questions about rectangles and other polygons. Students derive the fractal pattern when dividing...
Curated OER
CEEnBoT Stories
Students identify the slope of a line as negative, positive, zero or undefined. For this algebra lesson, students identify the distance versus the time using graphs of linear equation. They use the robot and the CEENBoT program to...
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...
Curated OER
Interior/Exterior Polygon Angles and Tessellations
Students discover the sum of the interior and exterior angles of several polygons. In this Geometers sketchpad instructional activity, students work in groups to find the stated measurements of triangles, quadrilaterals, pentagons and...
Curated OER
Paper Plate Observation
Students analyze transits from previous scientists. They identify simple objects that could have been used for documentation in the science world. They also practice scientific inquiry using methodology.
Curated OER
Introduction to Quadratic Equations
In this quadratic equations worksheet, 8th graders solve and complete 7 various types of problems. First, they find the area for each rectangle with a given perimeter. Then, students describe the shape of the graph and use the equation...