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8th Grade Math | MathHelp.com
By MathHelp.com
This lesson covers estimating products. Students learn to estimate a product or quotient by first rounding each number to one non-zero digit. For example, to estimate 8,291 x 27, first round 8,291 down to 8,000, and round 27 up to 30, then multiply 8,000 x 30 to get 240,000.
Imaginary Numbers | MathHelp.com
By MathHelp.com
This lesson covers estimating quotients. Students learn to estimate a product or quotient by first rounding each number to one non-zero digit. For example, to estimate 8,291 x 27, first round 8,291 down to 8,000, and round 27 up to 30, then multiply 8,000 x 30 to get 240,000.
08 - Solving Exponential Equations - Part 1 - Solve for the Exponent
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Learn multiplication tables in a structured manner (grade 3 math) - very effective!
By Math Mammoth
This method (I call it a structured drill) allows children to learn the multiplication tables in grade 3 or 4 faster and much more effectively than random drilling!
My book Math Mammoth Multiplication 1 at http://www.mathmammoth.com/multiplica... uses this method also. The book covers both the concept of multiplication and the practice of all the tables. It is available both as an instant download and as printed copy.
See a free example lesson from the book:
http://www.mathmammoth.com/preview/Mu...
In the video, I use the table of 3 as an example and go through this three-step method.
In the first step, children memorize the skip-counting list. For the table of 3 this is: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36. They also practice saying it backwards, from 36 to 3.
In the second step, we work with the table itself, but it is written in order so the child can see its structure. The " randomness " comes from me (the teacher) pointing to various problems in a random order. I also like to point out certain benchmark facts to students: 10 x 3 is 30 and 5 x 3 = 15 are such facts because they're in the 10s table and in the 5s table, which the children probably have learned first.
We also practice the tables " backwards " where the " answers " are written and the student tells how many times 3 they are. For example, I point to ___ x 3 = 24, and the child is supposed to say " 8 " . This type of practice makes children learn basic division facts at the same time without realizing it! This really helps third grade students because division is also a topic for third grade math.
01 - Simplify Rational Exponents (Fractional Exponents, Powers & Radicals) - Part 1
By Math and Science
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AE Live 7.2: Integrated Skills - Combining Listening, Speaking, Reading, Writing and Grammar
By
This session is part of the American English Live! teacher professional development series. The webinar will address an integrated approach to teaching speaking, reading, listening, writing, and grammar skills. First, we will identify some challenges associated with combining language skill areas, and we’ll discuss ways to overcome these challenges. Next, we will explore how to develop and implement a variety of multi-skill instructional options including meaningful grammar activities, dynamic reading relays and jigsaws, interactive writing games, engaging speaking activities, and high-interest listening tasks. By the end of the session, participants will have developed a toolkit for conducting more interactive, learner-centered lessons that motivate students and hold their interest—teachers will be ready to adapt and use these innovative ideas immediately!
Calculate Exponents & Learn to Use Exponents in Math - [5-7-15]
By Math and Science
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04 - Solving Logarithmic Equations - Part 1 - Equations with Log(x)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
05 - Simplify Irrational Exponents, Part 1 (Radical Exponents, Powers, Pi & More)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Using Parenthesis in Math - Order of Operations - [5-7-3]
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
07 - The Geometric Sequence - Definition & Meaning - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!