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Bar Modeling samples and practice can be found using "Thinking Blocks" on www.mathplayground.comNational Council of Teachers of Mathematics (NCTM) has a great website called Illuminations for lessons and activities organized by grade and topic.Chapter 1: Whole NumbersHow much is a trillion dollars? - This puts it in perspective!
usdebtclock.org - WOW! - See if you can wrap your brain around this!Chapter 2: Whole Number Multiplication and Divisionwww.multiplication.com - lots of games and strategies for learning factsaaamath.com - long division practiceChapter 3:Fractions - Adding/SubtractingBaseball Math - Take a swing at simplifying fractionsFootball Math - Find the receiver to add unlike fractionsFractotron - Quickly decide if the fraction is < or > 1/2 to boost your estimation skills.Coolmath.com - Adding and subtracting with whole numbers and fractionsKhan Academy - Fractions Everything you need to know!Chapter 4:Fractions - Multiplying/DividingMultiplication - fractions and mixed numbers - you enter the numbers, see the result, and make sense of the process.mathplayground.com - solve and simplify multiplication of fractionsWhat is the rule? See multiplying fractions using letters to gain insight into algebra.Multiplying mixed numbers- See it with pizza!1 or 2 player jeopardy game - multiplying and dividing fractions / mixed numbersChapter 5: Algebra(click on "Problems" tab in the lower right corner, then the Green tab in top right corner, followed by "Algebra" tab on left side)Coolmath.com - Mini-lesson on solving equationsKhan Academy - distributive property lessonKhan Academy - Commutative and associative propertiesChapter 8: Decimals (to the thousandths)(click on "Problems" tab in the lower right corner, then the Green tab in top right corner, followed by "Decimals and %" tab on left side)
mathisfun.com - addition and subtractionfunbrain.com - regrouping to the hundredthseclassroom - rounding decimals "Fling the Teacher" gameshodor.org - rounding decimals playing "connect 4" with a friendQuia - decimals and whole numbers jeopardy gameChapter 9: Multiplying and Dividing Decimals(click on "Problems" tab in the lower right corner, then the Green tab in top right corner, followed by "Decimals and %" tab on left side)math-play.com - Decimals jeopardy game (adding/subtracting/multiplying)ixl.com - estimating products with whole numbers reviewstudyzone.org - estimating products with decimalsmathplayground.com - dividing decimals by decimals videostudyzone.org - estimating quotientsvirtualnerd.com - review of estimating quotient with compatible numbersChapter 11: Graphs and Probabilitycommoncoresheets.com - review worksheets to download/printshodor.org - mini-lesson and interactive tool activitysoftschools.com - double bar graph makersciencekids.co.nz - mean, median, mode activitymathplayground.com - coordinate grid "Find the Aliens" gamepurplemath.com - using a T-chart to find plot pointsKhanAcademy - graphing lines tutorialsciencekids.co.nz - likelihood problemsmath-play.com - theoretical probabilityshodor.org - experimental probability(read a discussion about theoretical versus experimental probability)Studyjams.scholastic.com - Tree diagramsChapter 12: Anglesmathisfun.com - types of angles + interactive modelmathplayground.com - measuring with a half-protractorsciencekids.co.nz - Go ahead. Squirt the dog!mathisfun.com - vertical angles + interactive modelChapter 13: Properties of Triangles and Four-sided Figuresmathisfun.com - classifying triangles + interactive modelmathisfun.com - quadrangles interactive modelKhanacademy.com - triangle inequality theoremChapter 14: Three Dimensional Shapeseducation-portal.com - types of pyramids and moremathisfun.com - platonic solids (contains edges, faces, vertices, nets, and formulas for surface area and volume)Chapter 15: Surface Area and Volumenationalgeographic.com - 1 cubic foot video (more available at website)learner.org - rectangles and cylindersmathworksheets4kids.com - surface area worksheets for various solidsmathworksheets4kids.com - volume worksheets for various solidsChapter 6: Area of a Triangleflocabulary.com - music videoixl.com - online practicemathopenref.com - includes examples with decimalsshodor.org - change difficulty to include height outside of the triangleglencoe.com - use your knowledge of triangles and quadrangles to solve complex figuresChapter 7: Ratioaaamath.com - find the ratioaaamath.com - determine number based on ratiomath.rice.edu - word problems with visual aidsshodor.org - a thinker if you dare to follow the tortoise and the hare.articlesforeducators.com - challenging problem only for those who really want to think!Chapter 10: PercentThinking Blocks - Bar Models that you create
(click on "Problems" tab in the lower right corner, then the Green tab in top right corner, followed by "Decimals and %" tab on left side)mathplayground.com - Percent Shoppingmathplayground.com - Percent Invaders (you set the percentage to practice)math-play.com - percent/fractions/decimals jeopardy gamesciencekids.co.nz - design a park based on given numbers