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### We found 1,385 resources with the concept triangles

Videos (Over 2 Million Educational Videos Available)

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How to paint a watercolor and ink flower...

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Three-Dimensional Coordinates and the...

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Language and Creativity

Other Resource Types
(1,385)

Lesson Planet

#### Mathematics Vision Project: Interactive Applets

Ready, set, go! The Mathematics Vision Project provides a collection of 10 Interactive Applets that follow the progression of learning—to practice, develop, and solidify understanding. The interactives use engaging materials that include...

EngageNY

#### EngageNY Geometry Module 4: Connecting Algebra and Geometry Through Coordinates

Teach young mathematicians how to use coordinate geometry to program a robot that is bound in the room in which it sits . Help comes in the form of the 15 lessons in the Module 4: Connecting Algebra and Geometry through Coordinates...

EngageNY

#### EngageNY Precalculus and Advanced Topics Module 4: Trigonometry

Introduce advanced math students to the power of trigonometry! The 14 lessons in the Module 4 collection are divided into three topics: Trigonometric Functions, Trigonometry and Triangles, and Inverse Trigonometric Functions. Each lesson...

Lesson Planet

#### EngageNY Grade 8 Math Module 3: Similarity

The concept of similarity is the focus of a module designed to boost eighth grader's math skills. Scholars examine the Fundamental Theorem of Similarity, dilations, and the Pythagorean Theorem. The module consists of 14 lessons and two...

Lesson Planet

#### EngageNY Grade 7 Math Module 6: Geometry

Twenty-seven lessons make up a math module designed for seventh graders to focus on the concept of geometry. Topics include angles, triangles, parallelograms, three-dimensional figures, and measurement using volume and area. Two...

Lesson Planet

#### EngageNY Grade 8 Math Module 2: The Concept of Congruence

Eighth graders delve deep into the concept of congruence with a 16-lesson math module. Lessons plans offer guided practice, inquiry-based learning opportunities, and independent practice. A mid-module assessment gauges progress while an...

Lesson Planet

#### EngageNY Grade 6 Math Module 5: Area, Surface Area, and Volume Problems

Scholars take part in 20 lessons covering math concepts—area, surface area, and volume. Learning opportunities enforce knowledge of measurement and geometric shapes. A mid-unit exam challenges pupils to demonstrate what they know this...

Lesson Planet

#### Common Core Math: 8th Grade

Check out the Common Core with a collection that represents all the 8th grade math standards. Most resources engage multiple standards but the main one is listed on the notes section of each tab.

Lesson Planet

#### Farm Printables Collection

Teach your class about the farm with the ABCmouse.com! This collection includes coloring pages, a word search, and color-by-numbers pages. Access these and thousands of other resources for Preschool through 2nd grade at...

Lesson Planet

#### Review Sheets: Geometry

Full of problems with polygons, angles, lines, and triangles, your learners get a multi-page packet that provides all they need to know. It contains many of the standard problem types as well as some more challenging questions.

Lesson Planet

#### Math Stars: a Problem-Solving Newsletter Grade 7

Put on your thinking caps because middle school math has never been more interesting in this huge resource full of thought provoking questions. Written as a newsletter, the resource has 10 two-page newsletters with a variety of...

Lesson Planet

#### Study Jams! Classify Triangles

Jam on with this multi-faceted activity teaching triangle classification. Start with a learner-paced lesson describing the different qualities of triangles and follow with a fun karaoke session. Also provided are two types of...

EngageNY

#### Congruence, Proof, and Constructions

This amazingly extensive unit covers a wealth of geometric ground, ranging from constructions to angle properties, triangle theorems, rigid transformations, and fundamentals of formal proofs. Each of the almost-forty lessons is broken...

Lesson Planet

#### Saxon Math Course 2

Add some variety to your school or district's math curriculum with this comprehensive collection of materials. Offering over 900 pages of Saxon Math lessons, worksheets, and activities, this resource is a gold mine for any middle school...

Lesson Planet

#### Frog Garden Party! Toads and Triangles in the Math Garden

It's frog party time! With frog banners, frog juice, and a triangle hunt, your garden party is sure to be both entertaining and educational. The lesson connects geometry, earth science, and delicious snacks to teach kids about ecosystems...

Lesson Planet

#### Two Triangles' Area

Need an activity for teaching the Pythagorean Theorem? Geometry juniors apply the Pythagorean theorem to two triangles to determine a final calculation.

Lesson Planet

#### Triangle's Interior Angles

Given a pair of parallel lines and a triangle in between, geometers prove that the sum of the interior angles is 180 degrees. This quick quest can be used as a pop quiz or exit ticket for your geometry class.

Lesson Planet

#### Classifying Triangles

If you're looking for a presentation to assist you in your teaching of triangles, this one could be for you. In it, learners are shown how triangles are classified by the size of their angles and by their sides. These are tricky concepts...

Lesson Planet

#### SAT Prep: Test 2 Section 6 Part 2

Reviewing the last problem from the previous video because he feels that he "rushed it," Sal again explains the concept of ratios as it applies to problem 6 on the practice SAT (page 472 in The Official SAT Study Guide). Additional...

Lesson Planet

#### SAT Prep: Test 1 Section 9 Part 3

If it takes a long time to complete the problems on the math SAT, it doesn't matter if they are correct - the problems that are left over will count against the student's score. Sal takes care to show quicker ways to complete problems...

Lesson Planet

#### SAT Prep: Test 1 Section 6 Part 4

Number 11 in the practice section of The Official SAT Study Guide begins with finding the perimeter of a given triangle. Once students solve this multiple-choice question, they can find ways to solve the additional problems on the page,...

Lesson Planet

#### SAT Prep: Test 5 Section 9 Part 1

Reasoning through the methodology of a new set of problems from page 679 of The Official SAT Study Guide, Sal shows students how to find the ins and outs of increasingly difficult math problems. He advises them to thoroughly think over...

Lesson Planet

#### SuperShapes, Part 1; "Tri"ing Triangles

An outstanding lesson on triangles awaits your math scholars. Learners focus on the triangle, which is the strongest of all polygons. They see the role that triangles play in the design of buildings, and learn about triangle...

Lesson Planet

#### Colorful Triangles

Learners examine a figure made up of different types of triangles and then determine whether each triangle is right, acute, or obtuse. Next, they color each type of triangle a different color. Finally, pupils answer three fill in the...