K–12 Math Lessons | CoolMathTime

Warp to Grade:

Grade 1

Numbers to 100

Place Value (Tens & Ones)

Add within 20

Subtract within 20

Word Problems Basics

2D Shapes

3D Shapes

Measurement Tools

Time to the Hour

Money (Coins)

Grade 2

Numbers to 1,000

Place Value (H/T/O)

Two‑Digit Addition

Two‑Digit Subtraction

Intro to Multiplication

Intro to Division

Fractions (1/2, 1/3, 1/4)

Measurement (cm/in)

Telling Time (Quarter & Half)

Word Problems A/S

Grade 3

Multiplication Facts (0–12)

Division Facts

Area & Perimeter (Rects)

Equivalent Fractions

Decimals (Tenths)

Rounding (10s/100s)

Mult/Div Word Problems

Bar Graphs

Time to the Minute

Fraction Word Problems

Grade 4

Multi‑Digit Add/Subtract

Multiplication (2–3 digits)

Division with Remainders

Factors & Multiples

Fractions Add/Subtract

Multiply Fractions

Decimals (Tenths/Hundredths)

Geometry (Angles/Lines)

Measurement Conversion

Graphs & Data Tables

Grade 5

Long Division

Multiplying Fractions

Dividing Fractions

Add/Subtract Decimals

Multiply/Divide Decimals

Volume (Cubic Units)

Surface Area (Cubes)

Order of Operations (PEMDAS)

Coordinate Plane (Q1)

Intro to Percentages

Grade 6

Ratios & Proportions

Unit Rates

Percent Problems

Integers: Add/Subtract

Integers: Mult/Div

Absolute Value

Expressions & Equations

Area (Triangles/Parallelograms)

Volume (Rectangular Prisms)

Statistics (Mean/Median/Mode)

Grade 7

One‑Step Equations

Two‑Step Equations

Inequalities

Proportional Relationships

Percent Applications (Interest)

Circles (Area & Circumference)

Surface Area (Prisms/Cylinders)

Probability (Simple)

Sampling & Distributions

Linear Relationships (Intro)

Grade 8

Multi‑Step Equations

Systems of Equations

Functions & Graphs

Pythagorean Theorem

Exponents (±)

Scientific Notation

Transformations

Volume (Cones/Spheres/Cylinders)

Probability (Compound)

Intro to Quadratics

Grade 9 (Algebra I)

Expressions & Polynomials

Factoring Quadratics

Solving Quadratic Equations

Systems of Linear Equations

Functions & Relations

Graphing Linear & Quadratic

Exponential Functions

Radicals & Rational Expr.

Inequalities & Abs. Value

Applications & Modeling

Grade 10 (Geometry)

Points, Lines & Planes

Congruence & Transformations

Proofs (Two‑Column)

Similar Triangles

Right Triangles & Trig

Circles (Chords/Tangents/Arcs)

Volume & Surface Area

Coordinate Geometry

Geometric Probability

Constructions

Grade 11 (Algebra II / Pre‑Calc A)

Complex Numbers

Polynomial Functions

Rational Functions

Exponential & Logarithmic

Sequences & Series

Probability & Statistics

Trig Ratios & Graphs

Law of Sines & Cosines

Transformations of Functions

Intro to Limits

Grade 12 (Pre‑Calc B / Calc Intro)

Trig Identities

Inverse Trig Functions

Polar Coordinates

Parametric Equations

Vectors (Intro)

Derivatives (Basics)

Applications of Derivatives

Integrals (Basics)

Area Under a Curve

Intro to Differential Equations

Kindergarten

Counting to 10

Counting 11–20

Shapes & Colors

Comparing Sizes

Simple Patterns

Introduction to Zero

Counting by 2s

Days of the Week

Picture Addition

Sorting Objects

Old CoolMathTime lessons

Counting & Numbers

Addition & Subtraction

Multiplication & Division

Fractions & Decimals

Basic Geometry

Measurement & Time

Money Math

Algebra Basics

Graphing & Coordinates

Probability & Statistics

Word Problems

Patterns & Sequences

Exponents & Roots

Integers & Rational Numbers

Ratios & Proportions

Angles & Shapes

Perimeter & Area

Volume & Surface Area

Graphing Equations

Linear Functions

Math Games

Math Maze

Math Maze

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Fraction Frenzy

Fraction Frenzy

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Shape Sorter

Shape Sorter

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Math Memory

Math Memory

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Time Traveler

Time Traveler

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Equation Escape

Equation Escape

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Graph Genius

Graph Genius

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Money Madness

Money Madness

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