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### We found 753 resources with the concept 2-d

Videos (Over 2 Million Educational Videos Available)

2:54

Phonics Song 2 (new version)

5:25

Language and Creativity

3:07

Who was Frederick Douglass?

Other Resource Types
(753)

Lesson Planet

#### Essence of Linear Algebra

The 15 videos in the Essence of Linear Algebra collection teach students how to understand the numerical operations of matrices as well as the geometric intuitions underlying them. The first video in the series details the rationale...

Lesson Planet

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

Scholars take part in 20 lessons covering math conceptsâ€”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

#### Linear Combinations, Span, and Basis Vectors | Essence of Linear Algebra, Chapter 2

What does it mean for two vectors to be linearly independent? The resource presents the basics of basis vectors and linear combinations. The third video in the 15-part series provides a definition of linear independence in terms of the...

Lesson Planet

#### 2D and 3D Shapes

What a great assessment to give young mathematicians in order to test their knowledge on two- and three-dimensional shapes. Learners name various shapes, identify the number of edges, faces, and vertices, match an unfolded version of a...

Lesson Planet

#### Lessons for Learningâ€”Kindergarten

KindergartnersÂ jump right into learning. Each lesson in this math unit is clearly outlined with materials, procedures, student outcomes, misconceptions, and solutions. AllÂ lessons and activities are aligned with Common Core math standards.

Lesson Planet

#### Why Do Honeybees Love Hexagons?

Float like a butterfly, think like a bee! Build a huge hive, hexagonally! Find out the reason that hexagons are the most efficient storage shape for theÂ honeybees'Â honeycombs. This neat little video would be a sweet addition to your life...

Lesson Planet

#### Partitioning a Hexagon

The task at hand is to partition a hexagon into two, four, and eight congruent figures. Make sure to give your wizards a sheet of triangle grid paper on which to decompose the hexagons. Have them explain which rotations, reflections, or...

Lesson Planet

#### What is a Trapezoid? (Part 2)

This collaborative activity investigates the meaning of a trapezoid and a parallelogram. It begins by presenting two different definitions of a trapezoid. Learners are to reason abstractly the difference between the two definitions and...

Lesson Planet

#### What a Square

Students examine the painting "Old Man With A Gold Chain" by Rembrandt. They identify geometric shapes in the painting, measure these shapes and compare the relationships of these measurements.

Lesson Planet

#### SAT Prep: Test 3 Section 2 Part 2

Problem number 6 on the practice SAT involves solving for a distance on a line, which Sal does in about 2 minutes. His method of efficiently (and correctly) solving problems is an excellent model for students who tend to panic at the...

Lesson Planet

#### SAT Prep: Test 8 Section 2 Part 3

Sal deftly solves the straightforward algebraic equation in problem 9 in under fifty seconds. Additional problems involve points on a plane, algebraic word problems, geometric angles, and fractions, some of which he takes more time to...

Lesson Planet

#### We Have Work to Do!

An excellent lesson awaits your young scientists! In it, learners are invited to explore the world of pulleys, levers, and planes; simple machines that make lifting heavy things much, much easier. They watch video, and engage in hands-on...

Lesson Planet

#### Visualizing and Naming Polygons

A really useful resource contains 116 slides covering basic geometric concepts related to 2-D or plane shapes. Shape properties, translations, reflections, congruence, symmetry, and grid work are all laid out in a comprehensive and...

Lesson Planet

#### Geometry Practice: Classifying Solids #2

In this solids worksheet, students identify the characteristics of solids. They name solids and determine the number of faces. This three-page worksheet contains seventeen problems. Answers are listed on the last page.

Lesson Planet

#### Looking Through the Algebraic Lens

Students work with rectangles to find generalizations for adding and subtracting odd and even numbers in part one of the lesson plan. In part two, students use geoboards to construct polygons, look for patterns, and find a general rule.

Lesson Planet

#### A World of Symmetry: Math-Geometry

Define and identify the three basic forms of symmetry translation, rotation, and glides with your class. They cut out and arrange paper pattern blocks to illustrate symmetry, create a Cartesian graph, and design a rug with a symmetrical...

Lesson Planet

#### Buoyancy and Viscosity

Some of these beautiful diagrams should help your students understand the connections between pressure and flight. Pressure and density are also discussed, and a number of links are included to give fantastic interactive examples of...

Lesson Planet

#### Thinking in the Three Dimensions

Discover different dimensions with paper folding. Pupils first read about zero, one, two, and three dimensions, and then learn about the fourth dimension, time. They then use origami to create models of shapes in three dimensions and use...

Lesson Planet

#### Lemonade Business - Investigating Surface Area and Volume of Containers

Boost lemonade sales by using the perfect container. For a given volume, future entrepreneurs design a container that will have the least surface area and by extension, the least cost of material. They create a two-dimensional net of...

Lesson Planet

#### What is a Constellation

Why do some stars in a constellation appear brighter than others? Using a get-up-and-move astronomy activity, scholars explore perspective and the appearance of constellations in the sky while developing an understanding of the...

Lesson Planet

#### Three Dimensions in Two Dimensions: Lesson

Slice up solids. A portion of a geometry playlist introduces two conventional ways to visualize 3-D figures in 2-D. The resource defines cross-sections and nets and provides examples of both.

Lesson Planet

#### I Built an Acoustic Levitator! Making Liquid Float on Air

Think of current acoustic levitator technology as a hover board for tiny things! Introduce young physicists to this emerging gadget using a video from an informative playlist touching on physics topics. Viewers watch as Physics Girl and...

Lesson Planet

#### Security Cameras

Catch them in the act of problem solving! Young scholars become security personnel for the day as they use their geometry skills to determine the best placement for security cameras. Given rooms of different shapes, learners must...

Lesson Planet

#### Triangle Classification

Oh triangle, where are the points that will make your type? Given a line segment, pairs determine the location of a third point to create the six different types of triangles. The teacher provides a jumping off point by leading a...