Two Plus Two Is Not Five: Easy Methods to Learn Addition and Subtraction
Mastery of basic math facts is the goal of this 232-page reproducible book. Unlike other books, counting and the tricks taught here are to aid in the memory of the facts, not used as a substitute. You will need a set of math flash cards to implement the program, unless you want to make up your own. You can start at Tier 1 with a beginning student or begin wherever needed with a remedial student or one who already has mastered some of the facts. There are six tiers in the book; beginning with the second, all math facts from previous tiers are reviewed. Each tier section begins with a page of instructions and information for using the worksheets within. For each math "trick," corresponding math fact cards (flashcards) are assigned. Math fact cards should be added to and practiced daily. The tiers are not organized by number sequence (first introducing all +0, then all +1 facts, etc.), but by ease of learning for children. So, in Tier 1, the following "tricks" are presented: Number +1, Doubles (1's, 2's, 5's), Backwards 1; Doubles (1's, 2's, 5's, 3's); Zero; Doubles (1-5); Doubles Subtraction; Right Next to Each Other; Doubles Subtractions; 2 Ladder. In between pages that introduce and model the tricks are review pages, making the program very incremental and "fail-proof". Text is clean, problems nicely spaced, and both horizontal and vertical forms are practiced. A Record-Keeping Checklist allows students to track their progress through the tricks and tiers. The Math Facts Baseline Recorder lists all 81 addition and subtraction facts. As facts are mastered, they are circled on this sheet.
One of the major selling points of this book for me is that corresponding subtraction facts are introduced right alongside the addition facts, rather than treating the memorization of subtraction facts as a separate skill. In my experience, subtraction and division kind of just come along with memorizing addition and multiplication tables. The other is that it looks like it will accomplish the goal. Too often, kids don't quite master these tables and must resort to counting up, skip counting, using their fingers, or consulting a calculator. This adversely affects their computational speed which will increase their frustration and be a hindrance in timed tests. It's best to "bite the bullet" and commit these to memory. If your child is just starting into math facts, or struggling with them, I highly recommend this volume. Once you finish it, you'll be ready for Five Times Five Is Not Ten by the same author.
Math facts are the keys that open the doors to being able to solve harder computation and word problems.
Timed tests do not help children learn math facts, strategies do! After showing what addition and subtraction mean, students should memorize the math facts.
This 2006 Evvy Award Winning workbook is different because it gives students strategies to remember addition and subtraction facts, and provides written practice too!
- Teachers, homeschool parents, special education and math resource teachers can use this book to teach math facts to students in any grade level.
- Math facts are practiced by their trick or strategy names throughout the book.
- 232 workbook practice pages have a clean design to appeal to both younger students and older students, including those in remedial math classes.
- Students will see that they can be successful in completing pages without counting on fingers or using a chart!
- This book includes record-keeping pages and a certificate of mastery!
1 year ago