Curated OER
Angle Measures
In this angles worksheet, students solve 20 problems pertaining to angle measurement and classification. This page is intended to be an online activity, but can be completed on paper.
Curated OER
Constructions and Loci
In this constructions and loci worksheet, students create a scale drawing of a running track. They identify the starting positions for a given race. Students bisect angles. They construct an angle trisector. This three page worksheet...
Physics Classroom
A Critical Lab
Physics lab groups finagle with laser lights to determine the critical angle of refraction for both water and Lucite. Because there are no detailed steps or an answer key for this enlightening exercise, an inexperienced physics...
Mathematics Vision Project
Module 6: Congruence, Construction, and Proof
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This unit...
Mathematics Vision Project
Circles: A Geometric Perspective
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
Curated OER
Clinometer
Seventh graders build their own Clinometer and using the tangent of angles, estimate the height of trees. Then these students develop and activity to show whole class and determine the tallest tree on school property.
Exploratorium
Peripheral Vision
Life science learners discover the range of peripheral vision. They compare the angles at which they can detect motion, colors, and detailed shapes.
Mathed Up!
Stratified Sampling
Young mathematicians learn how to solve problems involving stratified sampling. They review concepts of sampling and proportionality by watching a video and then they complete a activity of questions on this topic.
Curated OER
Relating Algebra to Geometry
Learners investigate the connection that exists between Algebra and Geometry. They classify two and three-dimensional figures. Pupils use formulas to solve problems in geometry and use appropriate measuring devices in the right contexts.
Curated OER
Toting the Log and Lifting the Babe
Students use simple machines that demonstrate force, friction, work and power. They investigate and explain simple machines.
Curated OER
Virtual Geologic Field Trip to Griffith Park
Students explore the geological processes and research methodology involved in the evolution and development of Griffith Park. They justify the selection of a geologic hypothesis based on observations.
Curated OER
An Archaeological Adventure in Athens
Students review map skills and practice finding locations on a map. In groups, they create maps with mystery locations identified by hidden stick-on magnets. Other groups attempt to find the mystery locations and then check their work...
Curated OER
Similarity
Students find the factor of proportionality in similar polygons. For 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...
Curated OER
Pan's Highway-Saturn's Rings
In this Pan's highway activity, students read about the Cassini spacecraft that discovered how Pan clears out the ring debris in the outer A-ring system of Saturn. Students use an image taken by the satellite to find the scale of the...
Curated OER
Automobile-Accident Reconstruction
Students investigate an accident and relate it to math. In this trigonometry instructional activity, students measure the accident scene, the friction produced, and the speed from the skid marks. They create a poster of their findings.
Curated OER
Building Congruent Triangles
Students differentiate between congruent and similar triangles. In this geometry lesson, students identify the lengths and angle measures of triangles. They use postulates to prove their answers.
Curated OER
Proving Triangles Congruent
Students examine Triangle Congruency. In this measurement comparison lesson, students use inductive, deductive and analytical thinking skills to prove triangle congruency. Students analyze and record their findings on activity worksheets.
Curated OER
The Laws of Sines and Cosines Made Simple!
Students explore the concept of law of sines and cosines. In this law of sines and cosines lesson plan, students construct a triangle tool from card stock and markers. Students use their triangle tool to aid in solving problems...
Curated OER
Strongest Polygon
Learners define and identify shapes by name. In this geometry lesson plan, students construct, identify and compare polygons based on the number of sides. They classify each shape based on their angle sum theorem.
Curated OER
Geometric Basketball Court
Students calculate the area and perimeter of a basketball court. In this geometry lesson, students differentiate between similarity and congruence of geometric objects. They test conjectures and use it to solve problems.
Curated OER
CSI Investigation
Students solve real life situation using the Pythagorean Theorem. For this geometry lesson, students calculate the length, midpoint and slope of segments. They solve word problems using properties of square roots.
Curated OER
Are you in Golden Shape
Students solve and verify the solution for unknown measures. In this geometry lesson, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.
Curated OER
Making Parallel Lines
Students differentiate between parallel and perpendicular lines. In this geometry lesson plan, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
Curated OER
Studying Special Segments in Triangles
Learners investigate special segments in triangles. In this geometry instructional activity, students graph, compare, estimate and predict findings based on their data. They differentiate between similarity and congruence of triangles.