We have spent time doing math talks around multiplication strategies. Outside of math class, students should continue to find fun ways to practice understanding numbers, ways of representing numbers, and relationships among numbers. Please encourage your child to use strategies that will help ensure that they are developing fluency with basic number combinations for multiplication.
Common Multiplication Fact Strategies
Students need strategies for deriving multiplication facts. Many of these strategies use the associative and distributive properties. Although facts do not need to be learned in any particular order, here are some strategies students use when deriving facts.
Helpful and Fun Greg Tang Math Games
Math Websites******Throughout the year please consider visiting the following websites for extra practice:
Math MAP Test Practice
Math Magician Games
MCA Math Test Sampler
http://www.mnstateassessments.org
Click on the link for Student/Family. (This website works best using Mozilla Firefox as your web browser.) Once on that page, click On-Line Student Samplers. Sign in as a guest and choose your child's grade level math test (Gr 4 Math MCA Item Sampler). Once you log in you will get a message that you can't use text-to-speech because of not having a secure browser. Your child can still work through the sampler, to become familiar with the on-line format of this test.
Other Websites:
http://www.amathsdictionaryforkids.com/
This is a great math dictionary. Some definitions are interactive. Check it out!
http://illuminations.nctm.org/activitysearch.aspx?grade=2
Select a grade level and click "search."
Play games that are just right for you!
http://www.counton.org/games/
Play games like "Who Wants to be a Mathonaire" and "Sudoku."
http://www.funbrain.com/
Click on "Classic Funbrain" and scroll down to the bottom of the page. Play games with numbers, words, and more. Some fun games are "Math Baseball," "Math Car Racing," "Grammar Gorillas" and "Spellaroo." When you are done playing a game, click on the red hotlink at the bottom of the page titled "Kids & Games" to return to the game page.
If you visit the arcade, it will ask you to register. Do not register unless a trusted adult says it's okay.
http://www.hoodamath.com
http://www.mathplayground.com
www.mathpickle.com
www.playwithyourmind.com/online-brain/spatial-sense/spatialeyes
banana hunt (do a google search) – for practice finding angle measures
www.gamequarium.com/geometry.html (banana hunt can be found here, too)
www.ixl.com (requires a subscription—individuals about $30)
www.vectorkids.com/vkgeomatching.htm
www.oswego.org/ocsd-web/games
www.oswego.org/ocsd-web/games/BillyBug/bugcoord.html (practice with coordinate grid)
www.AAAmath.com
www.coolmath.com
www.mathcats.com
www.funbrain.com/numbers.html
www.bigbrainz.com (for Timez Attack—subscription required)
www.gregtangmath.com
http://nrich.maths.org/6267
http://www.asdk12.org/staff/hoppas_mary/pages/Everyday_Math_Parent_Support/Vocabulary_Cards.html
Common Multiplication Fact Strategies
Students need strategies for deriving multiplication facts. Many of these strategies use the associative and distributive properties. Although facts do not need to be learned in any particular order, here are some strategies students use when deriving facts.
- Relate multiplying by 2 to addition doubles
- Relate multiplying by 3 to doubling and adding one more set
- Ex. 3 x 8 is the same as (2 x 8) + 8
- Relate multiplying by 4 to doubling and doubling again
- Relate multiplying by 5 to skip counting by five
- Relate multiplying by 6 to multiplying by 3 and doubling
- Ex. 6 x 9 is the same as (3 x 9) x 2
- Relate multiplying by 7 to using known facts
- Ex. 7 x 8 is the same as (5 x 8) + (2 x 8)
- Relate multiplying by 8 to multiplying by 4 and then doubling
- Relate multiplying by 9 to multiplying by 10 and subtracting one set
- Ex. 9 x 8 is the same as (10 x 8) - 8
- Relate multiplying by 10 to place value knowledge of groups of ten
Helpful and Fun Greg Tang Math Games
- Kakooma gregtangmath.com/kakooma
- Breakapart gregtangmath.com/breakapart
- Place Value gregtangmath.com/placevalue
- Missing gregtangmath.com/missing
Math Websites******Throughout the year please consider visiting the following websites for extra practice:
Math MAP Test Practice
Math Magician Games
MCA Math Test Sampler
http://www.mnstateassessments.org
Click on the link for Student/Family. (This website works best using Mozilla Firefox as your web browser.) Once on that page, click On-Line Student Samplers. Sign in as a guest and choose your child's grade level math test (Gr 4 Math MCA Item Sampler). Once you log in you will get a message that you can't use text-to-speech because of not having a secure browser. Your child can still work through the sampler, to become familiar with the on-line format of this test.
Other Websites:
http://www.amathsdictionaryforkids.com/
This is a great math dictionary. Some definitions are interactive. Check it out!
http://illuminations.nctm.org/activitysearch.aspx?grade=2
Select a grade level and click "search."
Play games that are just right for you!
http://www.counton.org/games/
Play games like "Who Wants to be a Mathonaire" and "Sudoku."
http://www.funbrain.com/
Click on "Classic Funbrain" and scroll down to the bottom of the page. Play games with numbers, words, and more. Some fun games are "Math Baseball," "Math Car Racing," "Grammar Gorillas" and "Spellaroo." When you are done playing a game, click on the red hotlink at the bottom of the page titled "Kids & Games" to return to the game page.
If you visit the arcade, it will ask you to register. Do not register unless a trusted adult says it's okay.
http://www.hoodamath.com
http://www.mathplayground.com
www.mathpickle.com
www.playwithyourmind.com/online-brain/spatial-sense/spatialeyes
banana hunt (do a google search) – for practice finding angle measures
www.gamequarium.com/geometry.html (banana hunt can be found here, too)
www.ixl.com (requires a subscription—individuals about $30)
www.vectorkids.com/vkgeomatching.htm
www.oswego.org/ocsd-web/games
www.oswego.org/ocsd-web/games/BillyBug/bugcoord.html (practice with coordinate grid)
www.AAAmath.com
www.coolmath.com
www.mathcats.com
www.funbrain.com/numbers.html
www.bigbrainz.com (for Timez Attack—subscription required)
www.gregtangmath.com
http://nrich.maths.org/6267
http://www.asdk12.org/staff/hoppas_mary/pages/Everyday_Math_Parent_Support/Vocabulary_Cards.html