Area Multiplication: Teaching Multiplication with Understanding

Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
Area Multiplication: Teaching Multiplication with Understanding
File Type

PDF

(3 MB|12 pages)
Standards
  • Product Description
  • StandardsNEW
This activity shows students what multiplication is and why it works. It is a great alternative to the more common multiplication algorithm and addresses Common Core Standard 4.5 in Numbers and Operations in Base Ten. Area multiplication leads into the my extended activity, Mental Multiplication, and also can be used to multiply polynomials in algebra.
Includes journal prompts, homework master, extensions, Common Core standards addressed, and answer key.
Log in to see state-specific standards (only available in the US).
Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.
Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.
Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ÷ 70 = 10 by applying concepts of place value and division.
Total Pages
12 pages
Answer Key
Included
Teaching Duration
45 minutes
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