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Multiplication

Multiplication. Jared and Jessie. Critical Thinking. How do patterns in our place value system assist in comparing whole numbers ? (Whole numbers are numbers that do not have a decimal) How might the most commonly used number system be different if humans had twenty fingers instead of ten ?

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Multiplication

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  1. Multiplication Jared and Jessie

  2. Critical Thinking • How do patterns in our place value system assist in comparing whole numbers? (Whole numbers are numbers that do not have a decimal) • How might the most commonly used number system be different if humans had twenty fingers instead of ten? • Why was multiplication invented? Why not just add?

  3. Warm-up Memory Game • Rules • There will be two stacks, do not mix up the stacks. • Mix each stack separate and neatly spread each stack out with cards facing down. • Then begin to flip one card from each stack over and play memory.

  4. Lessons • Multiplication rules • Even x Even • Odd x Odd • Even x Odd • Using a multiplication table • Handy tricks for certain numbers • The zero • The ones • The twos • The fives • The nines • The tens • The elevens

  5. Multiplication Table

  6. Other Practice • To do at home or with extra free time in class • http://www.multiplication.com/games/play/snowys-friend • Play together as a class, groups of 2 to 4 • http://www.multiplication.com/games/play/grand-prix

  7. Standard • Content Area: MathematicsGrade Level Expectations: Third GradeStandard: 1. Number Sense, Properties, and Operations • Concepts and skills students master:1. The whole number system describes place value relationships and forms the foundation for efficient algorithms

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