Curated OER
Pattern Recognition
Students identify different patterns and sequence in a deck of cards. In this algebra lesson, students use reasoning and proof to solve problems. They create different steps to identify and solve their problems.
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The Sum of All Angles
Students add up the different angles using the angle addition postulate. In this geometry lesson, students differentiate between interior and exterior angles. They calculate the different angles for triangles and use proof to show their...
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Crystals: Geometry and Groups
Students discuss the importance of examining crystals and experiment growing them. In groups, they complete a project in which they use groups in geometry just like crystallographers. They practice solving the groups and proofs and...
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The Need For Shelter
Fifth graders build a shelter to protect themselves from rain. They perform durability and water proof testing on the shelters. They make observations of plants found in the Amazon rainforest.
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Acrostic Animal
Second graders listen as the teacher describes how an acrostic poem is written. They research an endangered animal of Puerto Rico. Students write an acrostic poem as a class, and then individually about the animal they research. Students...
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Writing First Drafts (Grades 3-6)
Young scholars examine, experience and practice strategies that assist students in writing an expressive essay. They outline and then write a first draft of an essay to be edited and proofed and then corrected. Each student adds a visual...
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Interesting Beginnings: An Autobiographical Sketch
Students discuss the characteristics of an autobiography. Individually, they complete a graphic organizer and a timeline of events about their life. In groups, students brainstorm ideas for an interesting sentence and write an...
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Primes and Prime Factors
For this primes and prime factors worksheet, 8th graders solve 21 different problems to include identifying each number as prime, composite, or neither prime nor composite and listing all the primes less than 200. Then they complete each...
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Geometry Concepts and Applications
In this concepts and applications review worksheet, 10th graders solve and complete 40 various types of multiple choice problems. First, they write the equation of a vertical line passing through a point. Then, students find the...
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Points, Lines and Planes
For this points, lines and planes worksheet, 10th graders solve and complete 9 various types of problems. First, they name the planes that intersect a figure shown. Then, students determine the points that are collinear and coplanar in...
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Inequalities and Triangles
Students prove and apply theorems of triangle inequality and hinge theorem. For this geometry lesson, students will discuss which triangle is bigger and why. They will use theorems, such as Exterior Angle Inequality or the Pythagorean...
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Challenge: Skills and Applications Lesson 1.3
In this skills instructional activity, learners explain the Segment Addition Postulate, provide examples and counter examples and determine congruent line segments. This one-page instructional activity contains 11 multi-step problems.
Illustrative Mathematics
Global Positioning System II
Intricate details of a modern technology that many of us take for granted in our phones, computers (and some cars) are laid bare in a short but deeply investigative activity. The math behind a seemingly simple GPS device...
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How Sharp Is Your Memory?
Students play a memory game as they explore reasoning. In this algebra lesson, students identify concepts using pictures and words. They model real life scenarios using hands on manipulatives.
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Visual Structures of Postulates and Axioms in Algebraic Operations
High schoolers investigate Axioms and Postulates. In this proof and linear transformation of equations lesson plan, students explore axioms and postulates to solve linear equations. High schoolers construct game cards to analyze the...
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Animal Track Mural
Students create a mural depicting who they are. They observe and describe animals in their local environment and relate themselves to an animal. They also discuss how animals show proof of them being in a certain area.
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Application of Delta-Epsilon Definition of the Limit
Students investigate the concept of a Limit and how it is used in a variety of problematic situations. They fold paper to help illustrate how to form equilateral triangles and explain how all the angles are the same. The lesson includes...
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Derivatives of Exponential Functions
Students listen as the teacher develops the derivative formula for if y=e^x, They find dy/dx by showing two proofs. Students determine the derivative of y=e^tan3x, and if y=e^2x they determine the hundredth derivative. Students listen as...
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Power Question 2
In this math worksheet, pupils determine the locus of points, M, in plane ABC, such that KMAB=KMAC. They also draw the triangle ABC. Then determine the proof of the interior angles determining the identity of the equilateral triangle.
Curated OER
Three for the Money: The Degree/Diameter Problem
Students explore the concept of vertex-edge graphs. In this vertex-edge graphs lesson, students try to construct a graph with a given diameter, number of vertices, size, and planarity. Students construct various vertex-edge...
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Science Mystery: The Vinland Map
High schoolers research proof regarding the authenticity of the Vinland map. In this geography lesson, students hold a debate based on their research findings. They discuss which side won and write a short essay about their opinion on...
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If-Then Statements and Postulates
In this if-then statements and postulates worksheet, 10th graders solve 16 various types of geometry problems that include identifying the hypothesis and conclusions of each conditional statement. Then, they write each conditional...
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If-Then Statements and Postulates
In this if-then statements and postulates learning exercise, 10th graders solve 6 different problems related to if-then statements and postulates in geometry. First, they identify the hypothesis and conclusion of each conditional...
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Right Triangles
In this right triangles learning exercise, 10th graders solve 6 various problems and figures related to right triangles. First they identify and describe the 3 theorems and 1 postulate stated that prove 2 right triangles congruent if one...
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