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Videos [1–100 of 2123 videos]

02:49

Understanding Magnetic Interactions

Parth Gharfalkar

01:50

Determining Whether Two Addition Expressions Are Equal

Kerrie Lynskey

01:49

Adding Two Numbers up to 99 by Estimation

Kerrie Lynskey

01:53

Adding Two Numbers up to 99

Kerrie Lynskey

02:17

Using Subtraction to Solve a Word Problem

Kerrie Lynskey

02:25

Adding Two Whole Numbers

Kerrie Lynskey

01:11

Subtracting 10 from Numbers up to 20

Kerrie Lynskey

01:05

Counting the Square Faces of a Given Three-Dimensional Shape

Kerrie Lynskey

01:43

Expressing Numbers in Scientific Notation

Rhodri Jones

03:06

Finding the Square of a Given Matrix

Chris O’Reilly

02:32

Solving Word Problems Involving Multiplication by 10

Kerrie Lynskey

01:47

Solving Word Problems Involving Multiplication

Kerrie Lynskey

01:15

Visual Representations of Data

Kerrie Lynskey

01:58

Identifying the Number Represented by a Given Point on a Number Line

Kerrie Lynskey

00:42

Checking the Congruence between Two Given Polygons

Kerrie Lynskey

00:49

Deducing Information about Patterns Involving Shapes

Kerrie Lynskey

01:27

Identifying Shapes

Kerrie Lynskey

00:32

Identifying Shapes

Kerrie Lynskey

01:46

Determining the Place Value of a Digit in a Number

Kathryn Kingham

01:56

Using Place Value to Write Numbers in Digits

Kathryn Kingham

02:36

Comparing Two Multidigit Numbers in Written and Numerical Form

Kathryn Kingham

00:47

Applying the Commutative Property of Addition

Kathryn Kingham

04:14

Finding a Side Length of a Right-Angled Triangle Inscribed in a Circle given Its Hypotenuse’s Length

Lauren McNaughten

03:27

Finding the Length of a Tangent to a Circle Using Tangent Properties

Lauren McNaughten

02:26

Finding Unknown Angles in Problems Involving Parallel Lines

Bethani Gasparine

04:38

Finding the Limit of a Rational Function at Infinity

Alex Cutbill

02:40

Finding the One-Sided Limits of a Piecewise-Defined Function

Alex Cutbill

04:07

Factorizing a Trinomial Using Guess-and-Check

Chris O’Reilly

05:12

Discussing the Existence of the Limit of a Piecewise-Defined Function at a Point

Alex Cutbill

01:23

Finding the Roots of a Parabola given Its Graph

Chris O’Reilly

02:46

The Equation of a Circle

Rhodri Jones

01:42

Determining Whether a Point Is within a Circular Region given Its Centre and Radius

Rhodri Jones

01:19

The Equation of a Circle

Rhodri Jones

01:20

Finding the Slant Height of a Cone given Its Height and Its Base Radius

Rhodri Jones

02:54

Using the Work-Energy Theorem to Find the Change in Kinetic Energy Done by a Variable Force given the Graph of the Force with Displacement

Ed Burdette

01:60

Finding the Velocity and Acceleration Vector of a Body given Its Position Vector in Three Dimensions

Ed Burdette

01:06

Factoring by Finding the Highest Common Factor

Bethani Gasparine

12:52

Products of Vectors

Ed Burdette

09:41

Mind Reading Number Trick

Tim Burnham

02:38

Using Bar Graphs to Report the Number of Observations

Kerrie Lynskey

02:57

Solving Word Problem Involving Subtraction of Numbers up to 999

Kerrie Lynskey

02:06

Solving Word Problems by Subtracting Numbers up to 999

Kerrie Lynskey

01:27

Subtracting Two Multidigit Numbers

Kerrie Lynskey

02:14

Subtracting Two Numbers up to 999

Kerrie Lynskey

02:29

Expressing a Pair of Simultaneous Equations as a Matrix Equation

Chris O’Reilly

00:36

Identifying Fractions of a Whole

Kerrie Lynskey

06:31

Finding the Current Density of a Proton Beam

Ed Burdette

01:38

Reading Data from Line Plots

Kerrie Lynskey

00:52

Identifying Shapes

Kerrie Lynskey

04:11

Solving for One of the Legs of a Right-Angled Triangle with Noninteger Solutions

Lauren McNaughten

04:17

Using Place Value to Order Numbers

Kathryn Kingham

02:15

Rounding Numbers to the Nearest Hundred

Kathryn Kingham

01:11

Adding Two Numbers up to 999

Kathryn Kingham

03:44

Using the Properties of Cyclic Quadrilaterals to Solve a Problem

Lauren McNaughten

04:17

Finding the Unknown in a Piecewise-Defined Function That Makes It Continuous at a Point

Alex Cutbill

03:32

Completing Squares

Chris O’Reilly

02:26

Converting Improper Fractions to Mixed Numbers

Kathryn Kingham

04:01

Simplifying Numerical Expressions Using the Properties of Square Roots

Chris O’Reilly

02:14

Simplifying Exponential Algebraic Expressions Using Laws of Exponents

Chris O’Reilly

02:50

Evaluating the Standard Deviation of a Discrete Random Variable

Rhodri Jones

01:59

Solving Word Problems Involving Addition of Numbers up to 99

Kerrie Lynskey

00:45

Subtracting Two Numbers up to 9 by Counting

Kerrie Lynskey

02:06

Finding the Length of the Arc given Its Measure in Radians and Its Circle’s Radius

Chris O’Reilly

03:03

Discussing the Continuity of a Rational Function over Its Domain

Alex Cutbill

02:49

Finding the Modulus of a Complex Number

Chris O’Reilly

01:03

Simplifying Algebraic Expressions Using Laws of Exponents with Negative Exponents

Rhodri Jones

01:46

Manipulating Quadratic Expressions by Completing the Square

Rhodri Jones

02:57

Solving Quadratic Equations by Factoring Perfect Squares

Rhodri Jones

02:13

Writing and Evaluating a Formula for the Perimeter of a Rectangle

Rhodri Jones

00:60

Simplifying Algebraic Expressions

Rhodri Jones

01:24

Expanding a Difference of Two Squares

Rhodri Jones

01:18

Expanding a Perfect Square

Rhodri Jones

04:06

Finding the Values of Unknown Terms by Equating the Coefficients

Rhodri Jones

03:50

Finding the Measures of the Angle and the Major and Minor Arcs Inscribed between Two Tangents

Lauren McNaughten

03:03

Factoring by Finding the Highest Common Factor

Rhodri Jones

03:05

Finding the Length of the Chords in a Circle Using the Properties of Chords

Lauren McNaughten

01:16

Simplifying Algebraic Expressions

Rhodri Jones

01:22

Simplifying Numerical Expressions Involving Square Roots

Rhodri Jones

01:16

Solving for the Hypotenuse of a Right Triangle

Rhodri Jones

04:57

Finding the Length of the Secant Using the Application of Similarity in a Circle

Lauren McNaughten

01:37

Using Right Triangle Trigonometry to Find an Unknown Angle

Rhodri Jones

01:29

Using Right Triangle Trigonometry to Find an Unknown Length

Rhodri Jones

04:01

Finding all the Unknowns in a Right Triangle

Rhodri Jones

01:44

Solving Equations with an Unknown in the Denominator

Rhodri Jones

01:25

Solving Word Problems by Adding or Subtracting Two-Digit Numbers

Kerrie Lynskey

05:41

Discussing the Continuity of the Composite Function of Two Piecewise-Defined Functions at a Given Point

Alex Cutbill

03:40

Finding the Centre of Mass of a System of Three Masses Placed on the Sides of a Square

Ed Burdette

15:04

Solving Cryptarithmetic Puzzles

Tim Burnham

04:45

The Intermediate Value Theorem

Alex Cutbill

10:21

Model Snail Racing Problem

Tim Burnham

11:43

Using Significant Figures

Ed Burdette

06:44

Dimensional Analysis

Ed Burdette

02:48

Evaluating a Matrix Using Operations on Matrices

Bethani Gasparine

01:27

Subtraction of Matrices

Bethani Gasparine

02:49

Solving a System of Two Equations Using Matrices

Bethani Gasparine

03:03

Finding the Area of a Triangle on the Cartesian Coordinate Using Determinants

Bethani Gasparine

00:34

Evaluating Algebraic Expressions after Solving One-Step Linear Equations

Bethani Gasparine

03:16

Multiplying Three Mixed Numbers

Bethani Gasparine

03:09

Evaluating Expressions Involving Division of Fractions and Mixed Numbers

Bethani Gasparine

12:47

Measurement Uncertainties

Ed Burdette

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