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...

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...

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

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 the honeybees' honeycombs. This neat little video would be a sweet addition to your life...

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...

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...

Learners 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.

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.

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...

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...

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...

How do they create those 3-D views on a 2-D surface? The video presents the history of the art of using anamorphic perspective. A review of perspective drawing provides background knowledge to the class. Pupils see different methods...

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...

Take a look at a prism after slicing and dicing it. Given a rectangular prism with all three dimensions, pupils draw the horizontal and vertical cross-sections and provide their dimensions. They also determine the dimensions of a...

But what happens if the matrix is not square? The ninth video in a series of 15 serves as a footnote to discuss non-square matrices. The resource presents them as transformations between two and three dimensions. The presentation...

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...

Turn 2-D into 3-D using a simple rotation. The resource contains two questions concerning the rotation of a rectangle about the x-axis and the y-axis. Pupils identify the resulting solid and provide information about the dimensions.

Assess the class' ability to solve problems involving area, surface area, and volume with a six-question assessment that presents problems covering aspects of calculating measurements of 2-D and 3-D figures. Class members use the...

Eleven problems provide pupils the opportunity to find the lines of symmetry or identify rotational symmetry. Scholars alter designs to make them symmetrical, learn to recognize signs that are symmetrical, and identify the type of...

Challenge mathematicians to examine and sort a variety of 2-D and 3-D figures with a 10-problem solid shapes activity.

Continue the journey into the world of physics as you lead your class on a winding road complete with vectors and scalers. Pupils learn more about motion, direction, and velocity as they use these concepts to explore two- and...

Young mathematicians combine their understanding of polygons and the coordinate plane in this short writing exercise. Looking at five points plotted on a graph, students must explain in writing how they can be used to create a trapezoid...

Four polygons each have a fraction with unlike denominators printed on them. Creative math minds select several shapes to create a design with and then write and solve a math problem involving the addition of all of the fractions...