Curated Video
Finding Volume: Multiplying Dimensions and Using the Volume Formula
In this video, the teacher explains how to compute the volume of a solid figure using its dimensions. They emphasize the importance of understanding the length, width, and height of an object and how to use them in the volume formula.
Curated Video
Computing Volume Using Dimensions and Formulas
In this video, the teacher explains how to compute the volume of a solid figure using different volume formulas. They demonstrate the traditional formula of multiplying length, width, and height, as well as a more efficient formula that...
Curated Video
Finding the Density of a Solid Sphere
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2H Q11, which involves finding the density of a solid sphere. Students will learn how to use the formula for the volume of a sphere to find its...
Curated Video
Identifying Geometric Figures in Two-Dimensional Shapes
In this lesson, students will learn how to identify and classify geometric figures in two-dimensional shapes. They will understand the properties of points, lines, rays, and angles and use them to analyze shapes. By recognizing parallel...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Similar Shapes - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Volume - Cone and Hemisphere - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: 3D Shapes - Surface Area - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
How to Determine the Volume of a Composite Solid
In this short math video we will learn how to determine the Volume of a Composite Solid. The composite solid is composed of two right rectangular prisms which we will visual divide into two right rectangular prisms. We will identify the...
Curated Video
How to Identify Vertices, Edges & Faces in Three Dimensional Figures
In this video lesson we will learn how to identify vertices, edges and faces on a three-dimensional solid. We will learn that the edges meet at the vertices. We will discover that each face is formed by edges. We will discover the...
Curated Video
How to Find the Volume of a Composite Figure
In this short video we will answer a standardized math test question where we are asked to find the volume of a composite figure. We will review that a composite figure is a solid made up of two or more three dimensional figures. We will...
Curated Video
Finding the Volume of an Irregular 3D Solid: Additive Property of Volume
In this video, the teacher explains how to find the volume of an irregular 3D solid by recognizing that volume is additive. They demonstrate this concept by breaking down the solid into two rectangular prisms and finding the volume of each.
Curated Video
Nets (Part 1) (Use a net to find the surface area of a solid formed by rectangles and triangles)
The three dimensions that form a solid are: length, width, and height.
Curated Video
Representing Three-Dimensional Figures with Nets
In this video, the teacher explains how to represent three-dimensional figures in two dimensions using nets. They define dimensions and give examples of one-dimensional, two-dimensional, and three-dimensional figures. They also...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Ratio of Volumes - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
Bounds: Finding the Upper Bound for the Value of an Algebraic Equation
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2HR Q19, which involves bounds. By using algebraic manipulation and rounding to the correct number of significant figures, we will work through the...
Curated Video
Visualizing Two-Dimensional Cross-Sections of Cones
In this video, the teacher explains how to visualize and identify the two-dimensional cross-sections of cones. They discuss the different shapes that result from slicing through cones at different angles, such as triangles, parabolas,...
Curated Video
How Many States Of Matter Are There?
Let’s talk about states of matter. You know your states of matter don’t you? We have solids, liquids and gasses, and plasmas, quark-gluon plasmas, nuclear matter, bose-einstein condensates, neutronium, time crystals, and sand. Come to...
Brian McLogan
Sketch a figure from a net
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which...
Brian McLogan
Sketch a net from a 3D figure
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which...
Curated Video
Visualizing Two-Dimensional Cross Sections of Cylinders
In this video, the teacher explains how to determine the shape of a cross section when slicing a three-dimensional solid. By analyzing whether the slicing plane intersects with straight or curved surfaces, students can visualize and...
Curated Video
Analyze Triangular Prisms to Find Surface Area
This video explains how to analyze triangular prisms by identifying and assessing pairs of congruent triangular faces. It discusses the concept of congruence and parallelism in 3D solids. The lesson highlights the different sizes and...
Curated Video
Understanding Square Units and Cubic Units
In this video, the teacher explains the difference between square units and cubic units by analyzing dimensions. Square units are used to measure area in 2D figures, while cubic units are used to measure the amount of space occupied by...
Curated Video
Calculating Volume Using Nets of Rectangular Prisms
In this lesson, students will understand that a net is a 2-dimensional representation that can be folded to create a 3-dimensional shape. By using multiplication and addition, students will calculate the volume of a solid by counting the...
Curated Video
Finding the Surface Area of Triangular Prisms
In this video, you will learn how to find the surface area of triangular prisms by calculating the area of the faces that make up the figure. The video provides an example problem and offers helpful tips and shortcuts for solving similar...