Math Videos - Concepts and Problem Solving

Lines and Angles

Polygon angle sum Pythagorean Theorem

Square Root operations

Triangle angle sum

Using a protractor

Plotting Points

Definition of Slope

Finding the Slope of a Line

Graphing Lines

Calculating the midpoint

2D and 3D Shapes

Area of a triangle Area of a trapezoid

Area and perimeter

Area of circles

Area of trapezoids

Circumference

Surface Area of cones

Surface Area of cylinders

Surface Area complex

Surface Area of prisms

Surface Area of pyramids

Volume of cones

Volume of cylinders

Volume of prisms

Volume of pyramids

Numbers and Properties

What is a prime number? What is prime factorization?

What are divisibility rules?

How do you round numbers?

How do you find GCF and LCM?

Word Problem - GCF

Whole Number Operations

How do you subtract by regrouping? How can I learn my times tables?

How do you do long division?

What is a quotient?

Fractions

How do you add fractions? How do you simplify fractions?

Change fractions into decimals

How do you divide fractions?

Find a fraction of a number

Compare and order fractions

Ratio and Proportion

What is a ratio? What are equal ratios?

Solving ratio word problems

Ratios

Proportions

Measurement and Data

More than one mode? Milliseconds in 1 day?

What's the metric system?

Reading a stem and leaf plot

Word problem - changing averages

Percent

How do you find the sale price? Convert fractions to percents

Calculating the tip

Percents

Percent Change

Prealgebra

What is PEMDAS? Order of Operations

Defining Variables

Additive and Multiplicative Inverses

Solving Single-step Equations

Solving Two-step Equations

Algebraic Equations

Solving a variable equation How do you solve 5(2x + 7) = 45?

How do you solve an inequality?

Simplifying Like Terms

Solving Multi-step Equations

Variable on Both Sides of the Equation

Thinking Blocks - Multiplication

Multiply Divide

Mixed Operations

Compare A

Compare B

Critical Thinking

Thinking Blocks - Fractions

Fraction of a Set A Fraction of a Set B

Fraction of a Set C

Add and Subtract A

Add and Subtract B

Multiply and Divide

Thinking Blocks - Ratio and Proportion

Decimals A Decimals B

Percent of a Number

Taxes, Tips, Sales

Percent Challenge A

Percent Challenge B