Worksheet
Curated OER

Measure Me

For Students 4th - 5th
In this math activity, students measure the different angles for the six problems. They use a protractor and also estimate the solutions.
Worksheet
Curated OER

Rotational Symmetry

For Students 5th
In this rotational symmetry instructional activity, 5th graders determine if the two figures have rotational symmetry. This instructional activity explains and provides examples of rotational symmetry.
Lesson Plan
Curated OER

How are Trig Ratios Used to Measure Triangle Sides

For Teachers 8th - 11th
Students identify the ratios of trig identities. For this geometry lesson, students solve the missing sides and angles of triangles using trig ratios. They relate the graphs and waves to real life scenarios.
Worksheet
Curated OER

Ten Trigonometric Review Problems - Calculator Required

For Students 11th - Higher Ed
In this trigonometry review worksheet, students convert between radians and degrees, sketch angles, evaluate trig. functions, solve for missing angles, and find the functions that satisfy the given conditions.
Worksheet
Curated OER

Exploring Similar Figures

For Students 10th
In this similar figures worksheet, 10th graders solve and measure 10 different angles that are similar. First, they determine which angel corresponds to each given angle. Then, students determine the scale factor of a particular...
Lesson Plan
Curated OER

Geometry w/o Figures - Week 7 (Basic Geometry Formulas)

For Teachers 10th - 12th
In this basic geometry worksheet, students use basic formulas of geometry to find the area of a polygons, the number of sides of a polygon, and sum of the angles of various polygons. This three-page worksheet contains eight problems.
Worksheet
Curated OER

More Congruent Triangles

For Students 10th
In this congruent triangles worksheet, 10th graders solve 6 various forms of problems that include a proof and a word problem. First, they draw and label triangles and indicate the additional pairs of corresponding parts that would have...
Lesson Plan
Curated OER

Measurement via Triangulation

For Teachers 6th - 12th
Learners utilize triangulation techniques to determine altitudes of objects. An altitude locator is constructed and used to determine the height of a building or a tree. Tangent tables and formulas provide the ratio for the formula to...
Worksheet
Curated OER

Drawing Triangles

For Students 6th
In this drawing triangles worksheet, 6th graders read the dimensions of four triangles, given the length or the angle, identify the type of triangle and draw it.
Worksheet
Curated OER

Angles and Parallel Lines Homework

For Students 9th - 10th
In this geometry worksheet, students identify the angles formed by parallel lines and a transversal. They differentiate between the angles of a transversal and that of a perpendicular line. There are 14 questions.
Lesson Plan
Curated OER

Sled Kites and Trigonometry

For Teachers 9th - 12th
Students study the history of kites and their fundamental properties.  In this kites lesson students divide into teams and build and fly kites. 
Worksheet
Curated OER

Quiz: Similarity

For Students 7th - 8th
For this similarity worksheet, students use the characteristics of similar figures to determine the length of one side of a polygon, the height of a tree, or the shortest side of a triangle. They also identify similar figures. ...
Lesson Plan
Curated OER

Intro To Quadrilaterals

For Teachers 1st - 3rd
Students engage in a lesson that is concerned with the concept of quadrilaterals and how they are used to create a rectangle for a door. They create a drawing of a quadrilateral while finding the sum of the angles. They practice problems...
Lesson Plan
Curated OER

Isosceles Triangles

For Teachers K - 2nd
Pupils investigate triangles. In this shapes geometry lesson, students define and state the attributes for equilateral, scalene, and isosceles triangles. Pupils locate the prefix "tri" in a variety of words and make connections with the...
Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 9th - 12th
Students identify a right angle and right triangle. They perform WebQuests searching for similar figures and solve for the length of one of the sides given the other two.
Lesson Plan
Curated OER

How Tall Is It?

For Teachers 1st - 3rd
Students identify how tall a tree is. In this measurement instructional activity, students use "luminometers" to measure a tree and complete a data sheet.
Worksheet
Curated OER

New York State Testing Program: Mathematics Test Book 1

For Students 7th - 8th
In this mathematics test bookelt, students solve problems studied during the year.  They solve problems covering topics such as probability, angle intersection, commission, percent, exponents, similar figures, and reading and...
Lesson Plan
Curated OER

Properties of Triangles

For Teachers 4th - 8th
Learners explore the relationship between how big a side of a triangle is and how big its opposite angle is by creating triangles using an interactive website.
Lesson Plan
Curated OER

Algebra/Geometry Measurement

For Teachers 5th
Fifth graders investigate units used to measure different geometric situations. In this geometry lesson, 5th graders measure length, mass, volume and temperature using units for measurements. They estimate the measurements before...
Worksheet
Curated OER

Sixth Grade Mathematics Test

For Students 6th
In this math worksheet, 6th graders complete multiple choice questions about number sentences, composite numbers, angles, and more. Students complete 30 questions.
Lesson Plan
Curated OER

Great Grams

For Teachers 4th - 12th
Young scholars measure objects effectively using standard units, They examine how consistency in the units used allows for easier and more accurate communication of mass measures.
Lesson Plan
Curated OER

Surface Area and Volume

For Teachers 6th - 8th
Middle schoolers are introduced to the notion of surface area and volume. Students review surface area and volume by finding the area of a two-dimensional shape. They practice using the computer to create different surface area shapes.
Lesson Plan
Curated OER

Composition of Reflections

For Teachers 9th - 10th
Young scholars perform reflections and translations of polygons. In this geometry instructional activity, students perform reflection in two parallel lines. They use Cabri to observe the transformation and rotations of each shape.
Lesson Plan
Curated OER

Mathematics in Art?

For Teachers 5th
Fifth graders view prints of M.C. Escher's work. They look at examples of geometric figures and polygons and discuss places they have seen them. Students create their own tessellations. They write a report about the process they used in...