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Activity
Illustrative Mathematics

Slopes and Circles

For Teachers 9th - 12th Standards
An upper-level treatment of what is often presented as a basic concept (the right angle of an inscribed circle on the diameter), this activity really elevates the mathematical thought of the learner! Expected to develop formulas from...
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Lesson Plan
Virginia Department of Education

The Exercise Fields

For Teachers 8th - 10th Standards
Horses need exercise, too. Scholars create linear equations to model the perimeter of exercise fields for horses. They finish by solving their equations for the length and width of the fields.
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Lesson Plan
Curated OER

Investigating Segments in a Triangle

For Teachers 9th - 12th Standards
Pupils investigate segments in a triangle by constructing a triangle using Cabri Jr. They construct segments within the triangle that lie on the midpoints of the triangle's sides. Learners then compare the slope of base of the triangle...
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Lesson Plan
Curated OER

Midpoint of a Segment

For Teachers 9th - 12th Standards
Learners revisit midpoint and segments by graphing on the TI or computer. This activity can be done with pencil and paper, but is more interactive if it is done on a TI-navigator.
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Lesson Plan
Texas Instruments

Investigating Segments in a Quadrilateral

For Teachers 9th - 12th Standards
Investigate the properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral. In this properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral lesson, learners use...
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Worksheet
Curated OER

Right Triangles

For Students 10th
In this right triangles worksheet, 10th graders solve and complete 12 various types of problems. First, they solve for x given each of the right triangles shown. Then, students determine the length of the shorter diagonal given the...
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Lesson Plan
Curated OER

Area of Polygons

For Teachers 10th
In this area of polygons worksheet, 10th graders solve and complete 12 various types of problems. First, they find the area of a given square. Then, students find the length of an original square as illustrated. They also write an...
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Lesson Plan
Curated OER

Right Triangles

For Teachers 4th - 8th
Learners classify triangles and make connections regarding angle measurements and attributes of acute, right, and obtuse triangles. They listen to teacher define and explain triangles. Everyone imagines a place where a broken wing for a...
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Worksheet
Curated OER

Transfromations

For Students 10th
In this geometry worksheet, 10th graders solve questions that involve rotations, reflections, and dilations.  The one page worksheet contains ten multiple choice questions.  Answers are not provided. 
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Lesson Plan
Curated OER

Finding The Center Mass of a Triangle

For Teachers 9th - 10th
Students calculate the center mass of a triangle. In this geometry lesson, students use the median to find the center mass. They discuss the different characteristics of triangles and their center of mass.
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Worksheet
Curated OER

Geometric Transformations and Tessellations

For Students 10th
In this geometry worksheet, 10th graders create a polygon in the indicated quadrant of a graph and perform the indicated transformation.  Students create an Escher type transformation.  The one page worksheet contains four questions. ...
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Lesson Plan
Curated OER

A Perpendicular Pilgrimage

For Teachers 9th
Ninth graders design a safe passage through a 2-D obstacle. In this geometric math instructional activity, 9th graders engage in a hands on activity to better understand the concept of geometric and algebraic perpendicularity. Students...
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Organizer
Curated OER

Rectangular Prism Net

For Students 4th
In this geometry worksheet, students cut out a rectangular prism net. They cut along the dotted lines as indicated the scissors icon, and fold the piece along the solid lines to form the three-dimensional shape. There are no directions...
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Lesson Plan
Curated OER

Teachers Zine's TAKS 3rd Grade Daily Upkeep 5

For Teachers 3rd
In this TAKS (Texas Assessment of Knowledge and Skills) daily upkeep worksheet, 3rd graders solve three math problems from Texas objective six. They read story problems and then identify the multiple choice answer that describes the...
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Worksheet
Curated OER

Square- Pyramid Net- Learning Tool

For Students 4th - 6th
In this geometry worksheet, students cut out the net for a square pyramid. They cut along the dotted lines and fold the shape into at three-dimensional model.
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Organizer
Curated OER

Triangular- Pyramid Net Pattern

For Students 5th - 6th
In this geometry worksheet, students cut out the pattern for a triangular-pyramid net. They cut the pattern on the dotted lines and fold it to make a three-dimensional study model.
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Organizer
Curated OER

Learning Tool- Cone Net

For Students 4th - 5th
In this geometry worksheet, students cut out a net to make a three dimensional model of a cone. They cut along the dotted lines and make the proper folds to form the model.
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Worksheet
Curated OER

Learning Tool- Square Pyramid Net

For Students 3rd - 4th
In this geometry worksheet, students cut along the dotted lines of a pattern for a square pyramid. They make folds and glue the pattern together to make a square pyramid net.
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Worksheet
Curated OER

Area on a Coordinate Grid

For Students 7th - 8th
In this area on a coordinate grid worksheet, students solve and graph 10 different problems on a coordinate grid. First, they determine the area of the given figures in each. Then, students determine the length of each side of the...
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Worksheet
Curated OER

Quiz: Area of Sector and Segment

For Students 10th - 12th
In this area of sector and segment worksheet, students find the area of a shaded sector. Given the central angle of a segment and the radius, students identify the area of a sector. This one-page worksheet contains ten problems.
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Worksheet
Curated OER

Quadrilaterals

For Students 10th
In this quadrilaterals learning exercise, 10th graders solve 10 different problems that include the quadrilateral family and properties. First, they determine the area of a rectangle given the perimeter and length. Then, students...
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Worksheet
Curated OER

Pre-Proof Warm-Ups

For Students 10th
In this pre-proofs worksheet, 10th graders solve and complete 10 different problems that include various proofs and their definitions. They use the diagram shown and the given information to write the direct conclusion for each case....
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Worksheet
Curated OER

Hyperbolas

For Students 10th
In this hyperbolas activity, 10th graders solve 10 different problems that include various forms of hyperbolas. First, they write the equation for each given hyperbola using standard form. Then, students determine whether the hyperbolas...
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Worksheet
Curated OER

Congruent Triangles

For Students 10th
In this congruent triangles worksheet, 10th graders solve and complete 10 different problems to determine whether each set of triangles is congruent or not. First, they copy each diagram onto a piece of paper and mark up the paper with...

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