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Math Mammoth

Enjoy learning math or learning HOW to teach math! I always emphasize conceptual understanding & number sense, because I feel that is how students learn math best. Check out also the accompanying Math Mammoth books at my site www.mathmammoth.com.

posted by iuhegrz

Power of a power - exponent law (8th grade/algebra) by Math Mammoth 56 views 20 hours ago 4 minutes, 21 seconds

More on negative exponents by Math Mammoth 46 views 1 day ago 5 minutes, 33 seconds

Zero and negative exponents (8th grade/algebra lesson) by Math Mammoth 51 views 1 day ago 9 minutes, 4 seconds

Using a number line to find elapsed time (3rd grade math) by Math Mammoth 97 views 2 days ago 4 minutes, 54 seconds

Elapsed time: time intervals to the minute (3rd grade math) by Math Mammoth 89 views 4 days ago 4 minutes, 11 seconds

Using till and after in telling time (3rd grade math) by Math Mammoth 115 views 9 days ago 5 minutes, 36 seconds

Partial products or how to break a multiplication problem into two (3rd grade math) by Math Mammoth 129 views 10 days ago 6 minutes, 39 seconds

Powers with negative bases (exponents are positive; 8th grade math) by Math Mammoth 75 views 2 weeks ago 6 minutes, 43 seconds

Laws of exponents 1: product of powers by Math Mammoth 66 views 2 weeks ago 6 minutes, 4 seconds

Zero and one in multiplication by Math Mammoth 134 views 3 weeks ago 3 minutes, 40 seconds

Order of operations - multiplication, addition, subtraction (3rd grade math) by Math Mammoth 125 views 3 weeks ago 4 minutes, 21 seconds

Multiplication as an array (3rd grade math) by Math Mammoth 96 views 3 weeks ago 4 minutes, 29 seconds

Meaning of multiplication: Many times the same group (2nd/3rd grade math) by Math Mammoth 147 views 1 month ago 4 minutes, 27 seconds

Volume word problems (7th grade math) by Math Mammoth 158 views 1 month ago 4 minutes, 27 seconds

Volume of prisms and cylinders by Math Mammoth 69 views 1 month ago 4 minutes, 18 seconds

Surface area word problem: Cover a box with wrapping paper by Math Mammoth 134 views 1 month ago 1 minute, 42 seconds

Surface area word problem: Painting a water tank by Math Mammoth 59 views 1 month ago 3 minutes, 40 seconds

Surface area basics: tetrahedron and prism by Math Mammoth 83 views 1 month ago 3 minutes, 59 seconds

$Comparing fractions: generic practice (3rd grade math) by Math Mammoth 206 views 1 month ago 4 minutes$

Comparing fractions: generic practice (3rd grade math) by Math Mammoth 206 views 1 month ago 4 minutes

$Comparing fractions: the same kind of parts or the same amount of parts by Math Mammoth 168 views 1 month ago 5 minutes, 22 seconds$

Comparing fractions: the same kind of parts or the same amount of parts by Math Mammoth 168 views 1 month ago 5 minutes, 22 seconds

$Comparing fractions: are the wholes the same size? by Math Mammoth 125 views 1 month ago 3 minutes, 26 seconds$

Comparing fractions: are the wholes the same size? by Math Mammoth 125 views 1 month ago 3 minutes, 26 seconds

Regrouping with zero tens, part 2 (3-digit subtraction) by Math Mammoth 207 views 1 month ago 2 minutes, 57 seconds

Regrouping with zero tens, part 1 (3-digit subtraction) by Math Mammoth 130 views 1 month ago 4 minutes, 2 seconds

How to use rounded numbers to estimate the answer to word problem (3rd grade math) by Math Mammoth 160 views 2 months ago 1 minute, 51 seconds

Rounding two-digit numbers to the nearest ten by Math Mammoth 166 views 2 months ago 5 minutes, 28 seconds

How to check addition problems by Math Mammoth 331 views 2 months ago 4 minutes, 54 seconds

Write an equation with an unknown for a word problem, part 1 by Math Mammoth 274 views 2 months ago 4 minutes, 11 seconds

Write an equation with an unknown for a word problem, part 2 by Math Mammoth 188 views 3 months ago 3 minutes

Telling time using 'past': how many minutes past/after the hour (2nd grade math lesson) by Math Mammoth 2,446 views 10 months ago 3 minutes, 8 seconds

$Divide fractions: how many times does it fit? (5th grade math) by Math Mammoth 1,596 views 10 months ago 1 minute, 55 seconds$

Divide fractions: how many times does it fit? (5th grade math) by Math Mammoth 1,596 views 10 months ago 1 minute, 55 seconds

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