This page provides a list of educational videos related to Lesson 11. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Lesson 11.

Video for Lesson 11: Basic Division

By mathwithlarry

This is a video for basic division. Division is nothing more than repeated subtraction and multiplication is repeated addition. Examples are solved and explained on a piece of paper. He explains that division is the opposite of multiplication in his example.

Grade 9 Chemistry, Lesson 11 - Ionic Compounds Part 2

By Lumos Learning

An overview of ionic compounds with multivalent elements and polyatomic ions

Adding Mixed Numbers - YourTeacher.com - Pre Algebra Help

By yourteachermathhelp

For a complete lesson on adding mixed numbers go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn to add mixed numbers by first adding the fractions then adding the whole numbers. For example to add 4 2/5 + 7 4/5 first add 2/5 + 4/5 to get 6/5 then add 4 + 7 to get 11. So 4 2/5 + 7 4/5 = 11 6/5. Notice however that the answer 11 6/5 contains an improper fraction 6/5 which is the same as 1 1/5 so 11 6/5 can be rewritten as 11 + 1 1/5 which simplifies to 12 1/5. So 4 2/5 + 7 4/5 = 12 1/5. Note that some of the problems in this lesson also require the student to find a common denominator for the fractions. For example 5 1/4 + 6 3/8.

Children`s: Spelling 8 - Numbers 11 to 20

By xoaxdotnet

This children's educational video teaches kids how to spell the numbers from 11 to 20: eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty. Each number words is spelled slowly and a picture is shown of the number. Lesson Page: http://xoax.net/childrens/Spelling8.php

Multiplying Mixed Numbers - YourTeacher.com - Pre Algebra Help

By yourteachermathhelp

For a complete lesson on multiplying mixed numbers go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn to multiply mixed numbers by first rewriting the mixed numbers as improper fractions then multiplying the improper fractions together then rewriting the resulting improper fraction as a mixed number if necessary. For example to multiply 1 8/15 x 1 1/4 first rewrite the mixed numbers as improper fractions to get 23/15 x 5/4. Next cross-cancel the 15 and 5 to 3 and 1 and we have 23/3 x 1/4. Next multiply across the numerators and denominators to get 23/12. Finally rewrite 23/12 as the mixed number 1 11/12.

Figures of speech

By Snap Language

This video introduces some basic figures of speech such as similes and hyperbole. It distinguishes literal, denotative meanings from figurative, connotative interpretations

Maths Questions - MathHelp.com - 1000+ Online Maths Lessons

By MathHelp.com

Perimeter Word Problems | MathHelp.com

By MathHelp.com

This lesson covers the area of a trapezoid. Students learn that a trapezoid is a quadrilateral with one pair of parallel sides, and the formula for the area of a trapezoid is 1/2 times (base 1 + base 2) times height. For example, the area of a trapezoid that has bases of 10 centimeters and 12 centimeters and a height of 8 centimeters is 1/2 times (10 + 12) times 8, which simplifies to 1/2 times 22 times 8, or 11 times 8, which is 88 square centimeters.

Parallel Lines | MathHelp.com

By MathHelp.com

This lesson covers imaginary numbers. Students learn that the imaginary number "i" is equal to the square root of -1, which means that i^2 is equal to (the square root of -1) squared, which equals -1. Students also learn to simplify imaginary numbers. For example, to simplify the square root of -81, think of it as the square root of -1 times the square root of 81, which simplifies to i times 9, or 9i. To simplify 11/8i, the first step is to get rid of the "i" in the denominator by multiplying both the numerator and the denominator of the fraction by i, to get 11i/8i^2, and remember that i^2 = -1, so we have 11i/8(-1), or 11i/-8, or -11i/8.