Math

Key To...

Sometimes a certain concept or area of math study just doesn't "stick" or needs more review. Sometimes you want to introduce an advanced student to more difficult topics. That's what the Key to...^®series is all about: inexpensive, sequentially-oriented and straightforward help on specialized topics.

The softbound student workbooks present concepts and problems in a friendly manner and allow students to work at their own pace. Vocabulary and reading level are simple; instructions are clear and direct; and only one concept is presented per page so students have time to understand new ideas without being overwhelmed.

Each topic comes with a softbound instructor book to help you anticipate and resolve special problems that may arise during teaching. All answers are written out just as if a student had worked them out, which is especially beneficial for students who can use the book to self-correct their work.

Use the Key To® programs:

As preparation for a larger, more intense program of the same subject.
As a supplement for a regular hardbound text.
As the text for an individualized course.

Vocabulary and reading level are simple; instructions are clear and direct; and only one concept is presented per page so students have time to understand new ideas without being overwhelmed.

These are consumable workbooks. We have found them very helpful with our own students.

Packages
Individual Items

Key to Algebra Set - Books 1-10 (w/Answer Keys)

Includes books 1-10 from the Key to Algebra program, plus answer keys.… more »

Recommended for ages: 10-18

10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Algebra Set - Books 1-10 (w/Answer Keys) package and recommended resources

$48.45

You could save $4.78

Item #RM100

Key to Algebra Set - Books 1-10

(Answer Keys NOT Included!)

Includes books 1-10 from the Key To Algebra Program. Answer keys not included!… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Algebra Set - Books 1-10 package and recommended resources

$34.50

You could save $3.40

Item #RM10X

Key to Geometry Set - Books 1-8 (w/Answer Keys)

Includes books 1-8 of the Key to Geometry Program, plus answer keys.… more »

Recommended for ages: 10-18

10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Geometry Set - Books 1-8 (w/Answer Keys) package and recommended resources

$55.60

You could save $5.50

Item #RM200

Key to Fractions Set - Books 1-4 (w/Answer Keys)

Books 1-4 of the Key to Fractions Program, plus answer keys. Included in Singapore Primary Math (U.S. Ed.) 3B/4A Kit and Singapore Primary Math (U.S. Ed.) 4A/4B Kit.… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Fractions Set - Books 1-4 (w/Answer Keys) package and recommended resources

$18.45

You could save $1.82

Item #RM300

Key to Fractions Set - Books 1-4

(Answer keys are NOT included!)

Consumable workbooks. Books 1-4 of the Key to Fractions Program. Does not include answer key! Included in Primary Math 3B/4A Kit and 4A/4B Kit and Saxon 8/7 Kit.… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Fractions Set - Books 1-4 package and recommended resources

$13.80

You could save $1.36

Item #RM30X

Key to Decimals Set - Books 1-4 (w/Answer Keys)

Books 1-4 of the Key to Decimals Program, plus the answer keys. Included in Singapore Primary Math (U.S. Ed.) 4B/5A Kit.… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Decimals Set - Books 1-4 (w/Answer Keys) package and recommended resources

$18.45

You could save $1.82

Item #RM400

Key to Decimals Set - Books 1-4

Answer Keys are NOT included!

Consumable workbooks. Books 1-4 of the Key to Decimals Program. Answer keys are NOT included. Included in Singapore Primary Math (U.S. Ed.) 4B/5A Kit and 5A/5B Kit.… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Decimals Set - Books 1-4 package and recommended resources

$13.80

You could save $1.36

Item #RM40X

Key to Percents Set - Books 1-3 (w/Answer Keys)

Books 1-3 of the Key to Percents Program, plus answer keys. Included in Singapore Primary Math (U.S. Ed.) 5B/6A and Singapore Primary Math (U.S. Ed.) 6A/6B.… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Percents Set - Books 1-3 (w/Answer Keys) package and recommended resources

$15.00

You could save $1.48

Item #RM500

Key to Percents Set - Books 1-3

Answer keys are NOT included!

Consumable workbooks. Books 1-3 of the Key to Percents Program. Answer keys NOT included! Included in the Primary Math 5B/6A Kit and 6A/6B Kit.… more »

Recommended for ages: 9-18

9 10 11 12 13 14 15 16 17 18

Learn more about the complete Key to Percents Set - Books 1-3 package and recommended resources

$10.35

You could save $1.02

Item #RM50X