Build a solid foundation on which to develop future concepts. Through a guided exploration, learners compare and contrast the characteristics of points, lines, planes, rays, and segments. They measure lengths and practice notation for...

Your learners will be lining up for more. Young mathematicians use a graphing calculator to explore the concept of plotting points on a coordinate plane. They play a Bingo-like game where they win if their plotted points are in a...

Is it possible for a pair to be parallel and skew? The resource provides the class opportunities to find out by examining the properties of parallel and skew lines. Part of a playlist on basic geometry, the video includes a brief...

Build up the basics of geometry, one point at a time. The segment in an extensive playlist on basic geometry provides the definitions of the essential building blocks of geometry. Using drawings, the video shows examples and descriptions.

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...

It's a bird, it's a plane, it's a modern aircraft with cross-sectional areas taken into consideration. A short video in the Real Engineering playlist describes how cross-sectional areas of airplanes relate to their speeds. It shows...

More wings means more lift. Future engineers watch a video that explains why planes during World War I had multiple, stacked wings. It also describes the advantages and disadvantages of such a system and why modern airplanes are not...

Being backwards isn't always bad. Scholars view a short video in the Real Engineering series to see why airplane wings are not straight and are angled backwards. The video provides a brief timeline of how airplane wings have evolved over...

Don't let learning about airplanes be a drag. An instructional video explains how advances in technology led to planes that can fly higher, resulting in less drag, less fuel, and the need for a pressurized cabin. It also explains why...

Search high and low for geometry. Using cameras, groups scour the school campus looking for geometric figures. The goal is to collect the most points by finding the higher scoring geometric figures for each category.

Can you define that basic figure? Building upon the undefined terms in geometry, the lesson defines basic geometry figures. The resource defines line segment, ray, angle, perpendicular lines, and parallel lines.

Geometry begins with a point. The video introduces the concepts of points, lines, and planes. Using diagrams, the presenter includes how to name the objects along with how to write the names. Previewing the concept of 3-D space ends the...

How do you calculate problems in alternate dimensions? The interactive allows learners to manipulate points in 2-D as scholars explore the relationship the points must have to create a one-dimensional object. Pupils identify objects that...

How many different ways can three planes intersect? The interactive provides three movable planes. Pupils manipulate the planes to determine the number of solutions possible based upon their intersections.

Mathematicians use notation for efficiency, so make your classes more efficient! The instructor explains the definition and notation for key elements of geometry such as points, lines, and planes. This is the 37th lesson is a series of 40. 

Defining the undefined is the goal of this video. The instructor explains the important features of a point, line, and plane and how they work together. He also addresses the correct ways to name each and describes the correct notation —...

Who will be included in the freshman class? Learners work on a problem involving admissions to a popular university as a basis of solving functions that contain inequalities. The instructional activity cleverly introduces and applies...

How do 2-D properties relate in 3-D? Lead the class in a discussion on how to draw and see relationships of lines and planes in three dimensions. The ability to see these relationships is critical to the further study of volume and other...

A point is an exact location in space. This tutorial defines the concept of a point as it occurs in graphing, geometry, and algebra. A variety of examples are used to show how important points are and where they'll be seen in the world...

A wonderful resource just waiting to be used. Provide learners with a complete explanation on how to calculate the area of a rectangle. After this process is covered, they will see how they can use rectangles to calculate the area of...

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...

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...

Kids count shapes, corners, and sides. They locate the corners and sides of each given shape, then count and record them in the space provided. Here you will find a activity that provides a step-by-step process for how the problems...

I remember doing this activity when I was little. Learners color each shape the color indicated at the top of the page. Squares are blue, cubes are red, circles are green and so on. There are 30 shapes to identify and color.