{"id":542058,"date":"2010-04-23T02:31:12","date_gmt":"2010-04-23T06:31:12","guid":{"rendered":"http:\/\/blog.richmond.edu\/openwidelookinside\/archives\/2718"},"modified":"2010-04-23T02:31:12","modified_gmt":"2010-04-23T06:31:12","slug":"second-grade-math-addition-and-subtraction","status":"publish","type":"post","link":"https:\/\/mereja.media\/index\/542058","title":{"rendered":"Second Grade Math: Addition and Subtraction"},"content":{"rendered":"

Introduction:<\/strong><\/p>\n

The mathematical topic for this post is meant for second graders who are recalling addition facts to sums of 20 or less and the corresponding subtraction facts.\u00a0 The focus is number relationships and is based on VA SOL 2.5.\u00a0 The following books are resources that children can use in order to sharpen their addition and subtraction skills.<\/p>\n

Recommended Books:<\/strong><\/p>\n

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Icky Bug Numbers 123<\/a> written by Jerry Pallotta and illustrated by David Biedrzycki and Rob Bolster is a book that takes children from zero to ten and on each number, there is a corresponding number of bugs.\u00a0 On 0, there are no bugs.\u00a0 On numbers 1 through 10, each number has a different bug.\u00a0 For example, there is one ant on the 1; there are two butterflies on the 2; there are seven spiders on the 7, and so on up to number 10.\u00a0 What’s neat about the next section of the book is that Pallotta mixes the bugs on the numbers so children will understand the idea of sets.\u00a0 On the number 7, there are four spiders, one dragonfly, one lady bug and one moth.\u00a0 Despite the fact that there are four separate bugs, the total number of bugs is still seven.\u00a0 The book also contains skip counting odd and even numbers to twenty and simple addition equations where the child will add groups of bugs together.\u00a0 The end of the book concentrates on subtraction.\u00a0 There is a spider that is capturing flies in its web. \u00a0 Pallotta introduces simple subtraction equations in reference to the bugs the spider has cocooned or eaten.\u00a0 I think second grade boys will really like this book.\u00a0 The illustrations of the bugs are amazing, and some are pretty creepy.\u00a0 The book is perfect for addition facts to 20 and corresponding subtraction facts.<\/p>\n

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Math for All Seasons<\/a> written by Greg Tang and illustrated by Harry Briggs is a book of 16 addition and subtraction riddles.\u00a0 Students can solve the riddles by counting objects or grouping objects on the page.\u00a0 The author encourages children to find quick ways to solve the riddles by grouping then adding or subtracting.\u00a0 The illustrations of objects such as, tulips, butterflies, umbrellas, dandelions, etc. are beautiful.\u00a0 Each riddle is a rhyme so the book could be considered cross-curricular as far as reading.\u00a0 Tang explains the best way to solve each riddle at the back of the book.<\/p>\n

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The Mission of Addition<\/a> by Brian P. Cleary and illustrated by Brian Gable is a book about adding sums.\u00a0 “6 yellow buses were parked in a line, 3 pulled behind them, and then there were 9.\u00a0 Along came 4 more, and that made13.\u00a0 If you got that right, you are an adding machine!”\u00a0 All of the scenarios in this book engage students in adding a sum, then adding more to that sum to get a total.\u00a0 It breaks down addition equations into simple terms.\u00a0 Examples are: “numbers climb from low to high,” “add means to increase,” “plus can be used just like and,” and “equals can be used like is, or totals, or makes.”\u00a0 Children learn how to add numbers together rather than counting objects.\u00a0 The book is well illustrated and easy to read.<\/p>\n

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The Grapes of Math<\/a> by Greg Tang and illustrated by Harry Briggs is a book of math riddles that encourages students to group like objects into sets, then add the sets together to forms sums or subtract groups in order to find the difference.\u00a0 Objects in this book are ants, strawberry seeds, camels humps, dice, etc., and the illustrations are wonderful.\u00a0 There are a total of 16 riddles in this book and answers are in the back.\u00a0 There are groups that total sums higher than 20 so it may be more a little complicated than the book Math for All Seasons<\/em> by the same author.\u00a0 The riddles are in a rhyme format and Tang gives clues to help the students group objects as opposed to counting.<\/p>\n

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Math Appeal<\/a> by Greg Tang and illustrated by Harry Briggs is another book that offers children great practice in addition and subtraction.\u00a0 Tang uses riddles to challenge children to see patterns in numbers.\u00a0 The patterns are located on beautifully illustrated objects such as, peas in pods, red hot chili peppers, clovers, geese, etc.\u00a0 Patterns can be determined by colors, shapes, or pure number of objects.\u00a0 Every riddle is a rhyme that challenges students to see the pattern, group the sets of objects, and then determine the sum or difference depending on what the riddle asks. Like his other books, each of the 16 riddles are different and the answers can be found in the back of the book.\u00a0 This book would be a great challenge for students who have mastered the VA SOL 2.5 because many of the sums and differences are above 20.<\/p>\n

Recommended Websites:<\/strong><\/p>\n

Countdown<\/a> and other games such as, Give Me Time and 20 Questions are excellent practice for students on need to brush up on their addition facts to 9+9. \u00a0 Simply scroll down to “Play” and choose any one of the three games.\u00a0 You can navigate from this page to practice subtraction facts and learn about inverse relationships of addition and subtraction.<\/p>\n

The Timernator<\/a> is a great site for addition and subtraction.\u00a0 Kids practice math against the clock.\u00a0 It helps them develop addition and subtraction skills without the pressure of being timed in a classroom environment.<\/p>\n

Addition Game-fishing<\/a> is a fun site where children get to catch the fish that equals the correct sum.\u00a0 There is also the Subtraction Game-fishing<\/a> where children get to catch the fish that equals the correct difference.<\/p>\n

Addition Concentration<\/a> is a fun game that is played just like Concentration.\u00a0 You select an addition problem from the left set of squares and then try to find the correct answer from the set of squares on the right.\u00a0 A smiley face pops up when you get the correct answer.<\/p>\n

Mathcar Racing<\/a> is a site where children can practice addition or subtraction.\u00a0 The child will race against another car by determining the sum or difference that provides the highest total out of the the choices of math facts on the board.<\/p>\n

Additional Resources:<\/strong><\/p>\n

Two Dice Sums<\/a> is an activity that can be played in the classroom or the home. \u00a0 It was a favorite activity developed by Marilyn Burns for the classroom.<\/p>\n

Math word problems<\/a> as well as several different lesson plans, activities and worksheets are listed on this site.\u00a0 The link is to the word problems page but there are links on this page that will navigate to other activities and worksheets.\u00a0 This would be a great site for teachers.<\/p>\n

Duck von Fly<\/a> is a subtraction game that specifically focuses on subtraction facts between 1 and 20. \u00a0 The objective is to keep Duck von Fly up in the air by choosing the correct difference of a subtraction problem.\u00a0 The answers are multiple choice.<\/p>\n

Hotchalk<\/a> is a site for lesson plans and activities for teachers.\u00a0 This link will send you to a list of plans and activities for addition and subtraction.<\/p>\n

Math Fact Cafe<\/a> is a website where teachers can build grade specific fact sheets or download pre-made grade specific fact sheets.\u00a0 It’s a good site for assessments and it also contains games for classroom activities.<\/p>\n","protected":false},"excerpt":{"rendered":"

Introduction: The mathematical topic for this post is meant for second graders who are recalling addition facts to sums of 20 or less and the corresponding subtraction facts.\u00a0 The focus is number relationships and is based on VA SOL 2.5.\u00a0 The following books are resources that children can use in order to sharpen their addition […]<\/p>\n","protected":false},"author":4215,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-542058","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/542058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/users\/4215"}],"replies":[{"embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/comments?post=542058"}],"version-history":[{"count":0,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/posts\/542058\/revisions"}],"wp:attachment":[{"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/media?parent=542058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/categories?post=542058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereja.media\/index\/wp-json\/wp\/v2\/tags?post=542058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}