Key To Math (Gr. 4-12)

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The Key To... series is a very self-instructional, unintimidating, programmed learning series. Covering seven basic topics, students can work through these horizontally or vertically. They are ideal for "homework" or a more topical approach to the subject. Presentation is done in a simple, friendly manner, incrementally, and with examples to follow as needed. Workbooks are thin and consumable. Answer keys are recommended. Order by the book or in sets.

We like this series because it encourages children to tackle these subject areas in as much depth as they can, rather than working strictly within the confines of an age-graded math program. Starting in 4th or 5th grade, I purchased a complete set of student workbooks for each child. Book 1 in each topic was put on the school book shelf. When Key to... was assigned, my children were free to work on whatever topic they chose, and they worked as much as they wanted. As soon as Book 1 in any subject was completed, it was replaced by Book 2. My oldest daughter sometimes got so involved that she just kept going!

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Key to Algebra complete set workbooks + keys Item #: ALGCMP
Grades: 5-10
Retail: $81.96
Rainbow Price: $79.50

Key to Fractions Complete Set Workbooks + Keys Item #: FRACMP
Grades: 4-8
Retail: $31.08
Rainbow Price: $30.50

Key to Geometry complete set workbooks + keys Item #: GEOCMP
Grades: 5-10
Retail: $96.32
Rainbow Price: $93.95

Key to Algebra Book 3: Equations Item #: 006657
Grades: 4-12
Rainbow Price: $5.65

Key to Algebra Book 1: Operation on Integers Item #: 006655
Grades: 4-12
Rainbow Price: $5.65

Key to Percents complete set workbooks + keys Item #: PERCMP
Grades: 4-8
Retail: $25.44
Rainbow Price: $24.95

Key to Algebra Book 2: Variables, Terms, and Expressions Item #: 006656
Grades: 4-12
Rainbow Price: $5.65

Key to Algebra Answers and Notes for Books 5-7 Item #: 007111
Grades: 5-12
Rainbow Price: $8.52

Key to Algebra Answers and Notes for Books 1-4 Item #: 004601
Grades: 5-12
Rainbow Price: $8.52

Key to Decimals complete set workbooks + keys Item #: DECCMP
Grades: 4-8
Retail: $31.08
Rainbow Price: $30.50

Key to Fractions Book 1:Fraction Concepts Item #: 002679
Grades: 4-12
Rainbow Price: $5.65

Key to Fractions Book 2: Multiplying & Divide Item #: 006055
Grades: 4-12
Rainbow Price: $5.65

Key to Algebra Book 6: Multiplying and Dividing Rational Expressions Item #: 006660
Grades: 4-12
Rainbow Price: $5.65

Key to Fractions Book 3: Adding & Subtracting Item #: 006056
Grades: 4-12
Rainbow Price: $5.65

Key to... Complete set with keys Item #: KEYCMP
Grades: 4-12
Retail: $328.04
Rainbow Price: $309.95

Key to Algebra Book 5: Rational Numbers Item #: 006659
Grades: 4-12
Rainbow Price: $5.65

Key to Algebra Book 4: Polynomials Item #: 006658
Grades: 4-12
Rainbow Price: $5.65

Key to Fractions Book 4: Mixed Numbers Item #: 004597
Grades: 4-12
Rainbow Price: $5.65

Key to Measurement Complete Set Item #: MSRCMP
Grades: 4-8
Retail: $31.08
Rainbow Price: $30.50

Key to Geometry Book 1: Lines & Segments Item #: 002677
Grades: 4-12
Rainbow Price: $5.65

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