Bridges to Algebra and Geometry -
3rd Edition

Chapter 1: Decimals and Problem Solving

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Some links are repeated for use with more than one lesson.

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http://www.aplusmath.com/Flashcards/rounding.html
This site has practice problems on rounding numbers.

http://www.scienceacademy.com/BI/round.htm
This site has practice problems on rounding numbers.

http://www.mathsisfun.com/operation-order-pemdas.html
This site presents the order of operations used when evaluating algebraic expressions, and links to some practice problems.

http://www.rootmath.org/algebra/commutative-and-associative-property
This site presents brief video tutorials on the commutative and associative properties.

http://www.rootmath.org/algebra/subtraction
This site presents brief video tutorials showing how many of the familiar properties do not apply to subtraction.

http://www.explorelearning.com/index.cfm?method=cResource.dspResourcesForCourse&CourseID=211
This site has examples and problems for the students to solve that involve adding, subtracting, and comparing decimals.

http://www.math.com/school/subject1/lessons/S1U1L4GL.html
This site shows how to add and subtract decimals and gives the rules.

http://www.mathsisfun.com/numbers/estimation.html
This site gives some useful guidelines for how and why to estimate, and a link to some helpful tips and tricks for estimating.

http://www.math.com/school/subject1/lessons/S1U1L4GL.html
This site shows how to add and subtract decimals and gives the rules.

http://www.scienceacademy.com/BI/decsub.htm
This site has practice problems on subtracting with decimal numbers.

http://www.purplemath.com/modules/numbprop.htm
This site presents and practices the commutative, associative, and distributive properties.

http://www.math.com/school/subject1/lessons/S1U1L5GL.html
This site shows how to multiply decimals and gives the rules.

http://www.mathsisfun.com/numbers/math-trainer-multiply.html
This site has a multiplication trainer, where you can measure and improve your speed and accuracy at multiplying numbers.

http://www.math.com/school/subject1/lessons/S1U1L5GL.html
This site shows how to multiply decimals and gives the rules.

http://www.math.com/school/subject1/lessons/S1U1L6GL.html
This site shows how to divide decimals and gives the rules.

http://www.math.wichita.edu/history/men/polya.html
Read about George Polya, a famous mathematician credited with developing and promoting the four-step problem solving strategy presented in the text.

http://www.wtamu.edu/academic/anns/mps/math/mathlab/int_algebra/int_alg_tut8_probsol.htm
This page provides extensive practice using the four-step problem-solving strategy presented in the text to solve a wide array of mathematics problems.