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# Combinations

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Practice Combinations
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Levels are CK12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Combinations

by CK-12 //basic

Use the formula for combinations.

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## Combinations

Given a set, learn how to calculate its number of combinations.

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## Combinations

by CK-12 //basic

Determine all the possible combinations in a probability problem.

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## Combinations

by CK-12 //basic

Recognize and identify combinations

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## Define and Apply Combinations

This lesson covers how to define and calculate combinations of objects and recognize the difference between a combination and a permutation.

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## Recognizing Combinations

by CK-12 //basic

Recognize combinations in situations where order does not matter.

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• Video

## Combinations Principles

by CK-12 //basic

This video gives more detail about the mathematical principles presented in Combinations.

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• Video

## Combinations Examples

by CK-12 //basic

This video shows how to work step-by-step through one or more of the examples in Combinations.

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• Video

## Combinations: An Introduction

by CK-12 //basic

Introduces combinations and explains how to evaluate combinations as well as solve counting problems using combinations.

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• Video

## Combinations

by CK-12 //basic

Introduces the formula for combinations in order to find how many subsets of a certain number we can take out of a set of a given number.

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• Video

## Combinations - Example 1

by CK-12 //basic

Word Problems - Find the number of combinations of n elements taken r at a time

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• Video

## Combinations: An Introduction

by CK-12 //basic

Introduces combinations and explains how to evaluate combinations as well as solve counting problems using combinations.

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• Video

## Combinations - Example 2

by CK-12 //basic

Finding the Number of Combinations Given One Event

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• Video

## Combinations: A Sample Application

This video demonstrates a sample use of combinations.

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## Combinations - Example 3

by CK-12 //basic

Multiplying Combinations Given Multiple Events

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• Video

## Combinations: An Explanation of the Concept

This video provides an explanation of the concept of combinations.

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• Lesson Plan

## Combinations Lesson Plan

by CK-12 //basic

This lesson plan covers Combinations and includes Teaching Tips, Common Errors, Differentiated Instruction, Enrichment, and Problem Solving.

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• Practice

## Combinations Practice

by CK-12 //basic

Practice Combinations questions

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• Critical Thinking

## Combinations Discussion Questions

A list of student-submitted discussion questions for Combinations.

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To organize ideas, increase comprehension, synthesize learning, demonstrate understanding of key concepts, and reinforce vocabulary using a Quickwrite.

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To activate prior knowledge, make personal connections, reflect on key concepts, encourage critical thinking, and assess student knowledge on the topic prior to reading using a Quickwrite.

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Come up with questions about a topic and learn new vocabulary to determine answers using the table

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## Define and Apply Combinations Double Entry Diary

To have students generate connections between specific points in the concept’s reading and their own personal experiences using a Double Entry Diary.

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## Recognize and Identify Combinations Post Read

Develop understanding of concepts by studying them in a relational manner. Analyze and refine the concept by summarizing the main idea, creating visual aids, and generating questions and comments using a Four Square Concept Matrix.

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## Combinations Four Square Concept Matrix

Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.

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## Recognizing Combinations

Summarize the main idea of a reading, create visual aids, and come up with new questions using a Four Square Concept Matrix.

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• Real World Application

## Blue Eyes or Brown Eyes?

You can calculate the chances of you having your eye color with a bit of combinations and genetics knowledge.

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• Real World Application

## Combinations

Students will analyze their chances of winning the lottery, using Combinations.

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• Real World Application

Students will analyze their chances of winning the lottery, using Combinations. Answer Key.

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• Real World Application

## Betting on Combinations

Learn how combinations factor into the game of poker.

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• Study Guide

## Probability Study Guide

This study guide reviews the probability of simple events, non-simple events, complementary events, compound events, conditional events, independent events, and mutually exclusive events. It also looks at tree diagrams and counting, combination, and permutation.

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• Flashcards