New ReviewIs it possible to find the volume of a cone? Of course! Using the formula for the volume of a cone, the video shows how to calculate an exact and an approximate answer for a cone's volume. The worksheets challenge pupils to perform...

Quick, name that shape! Scholars learn the names and common properties of three-dimensional solids. They watch a short video that shows an example of each shape and identifies the two-dimensional faces that make up its surfaces.

Who knew there were so many parts to a geometric solid?! Well, you probably did, and your pupils will, too, after watching a video lesson on three-dimensional figures. Instruction includes a description of the parts of solids, naming...

There's a formula for that. An educational video shows viewers how to apply geometry formulas to solve problems. It covers the formulas for the circumference of a circle, volume of a cone, and the Pythagorean Theorem.

Just how much ice cream will the cone hold? The video provides the formulas to find the surface area and the volume of cones. Using example problems, the section of a geometry playlist shows how to use the formulas to find the surface...

If your electromagnetic spectrum lesson plan has you feeling a little blue, here's a resource that will have you tickled pink! A video from a vast physics playlist describes color from its humble beginnings as a wavelength to its...

Explore the difference between the two color wheels. The focus of the installment of a larger physics playlist is to explain the difference between mixing colored paints and colored lights. Viewers find that the components of their eyes...

Discover formulas for surface area by analyzing nets. Using graph paper and nets, young scholars work toward deriving the formulas. They first derive the formula for a pyramid and then connect their processes to finding a formula for cones.

Untangle a web of formulas. Using online resources, pupils learn how to calculate the volume and surface area for cylinders and cones. Learners work in groups to figure out the formulas needed to calculate the volumes and surface areas....

Scholars see cross sections come to life using an app to investigate cross sections of three-dimensional solids. They look at prisms, pyramids, cylinders, cones, and double cones.

Poor cones; they'll never live up to cylinders. Pupils learn how the volumes of cones relate to the volume of cylinders. The results of the activity show that the volume of a cone only amounts to a third of the volume of a cylinder with...

There's no need to mention Cavalieri's principle obliquely. Individuals investigate the relationships between the volumes of right and oblique three-dimensional solids. Application of Cavalieri's principle helps them calculate volumes of...

Wrap a 2-D figure around the y-axis to form a solid. Given two 3-D figures, pupils determine the 2-D figure that—when rotated around the y-axis—will generate the solid. The pupils then draw the 2-D shape on the coordinate plane in the...

Analyze the Cape Florida Lighthouse with a little mathematics! Combining different aspects of cones, pupils calculate the volume of the building materials needed to build the lighthouse and then the surface area of the outside. Because...

How can you better explain the standards? A collection of resources gives teachers the resources needed to teach topics within the eighth grade curriculum. Lessons provide engaging activities to use within the classroom. 

No matter how you slice it, this is an unparalleled resource. Scholars consider the two-dimensional cross section that results from horizontal slices of a cone. They also investigate how the height at which the slice is made affects the...

Turn up the volume in 3-D. The video introduces the concept of volume and the units used to measure it. Using a graphical representation of translating 2-D figures, the resource develops the formulas for finding the volume of prisms and...

No need to envelop a cone of silence around an informative resource on conic sections — share it with others. Future mathematicians adjust the position of a plane through a double cone using an interactive. By exploring different...

A mountain gets smaller as you get to the top, right? It depends on how you look at it, because in terms of surface area, it may actually get bigger. Learners consider this idea as they view the creative video lesson.

Where does the line of rotation need to be to get a cone? Pupils respond to three questions involving rotating a right triangle about different lines. The scholars describe the solid created along with providing details about its...

Five groups stand in four corners, with one group in the middle. When the coach says "go!" groups run across the gym to an open available cone before another group gets there. Groups do this all while holding hands, strategizing ahead of...

Your eye cells come in different shapes and serve different functions; rod-shaped cells see shapes and cone-shaped cells see color. Video 18 in the series of 47 teaches all about vision. Scholars see (no pun intended!) how vision works....

Learners consider the rate of filling a cone in the 23rd installment of this lesson series. They analyze the volume of the cone at various heights and discover the rate of filling is not constant. The lesson ends with a discussion of...