Number sense is the basis of how students learn to count and understand how to use numbers! Through number sense students develop an understanding of not only how numbers are used in the classroom but also how to apply those numbers to computation. A child with a firm understanding of number sense can use numbers in their daily life outside of just counting objects, although that is where it all starts! The following books and resources are suited primarily for second grade.

Books

Are We There Yet, Daddy? by Virginia Walters. Illus. by S.D. Schindler. 1999. 32p. Viking, (978-0142300138). Gr.1-2.

This is a great book for counting backwards from 100 by 10. The story is about a father and his son taking a trip to visit his grandmother. They start 100 miles away and count down by 10s until they reach their destination. There is a nice map in the front and each page has the map on it showing the distance they have already traveled.

Even Steven and Odd Todd by Kathryn Cristaldi. Illus. by Henry B. Morehouse. 1996. 40p. Scholastic, (978-0590227155). Gr. 2.

As the title states, this adorable book is about Even Steven and his cousin Odd Todd. Each boy does things either with an even number or an odd number. We follow them through the day and ultimately as Steven gets frustrated with all his cousins odd numbers. There are even math activities at the end by our favorite math guru, Marilyn Burns.

One Hundred Is a Family by Pam Munoz Ryan. Illus. by Benrei Huang. 1994. 32 p. Hyperion Books, (978-0786811205). Gr. 2-3.

This is another great counting to 100 by 10's book. It starts out counting from 1-10 and then begins to count by 20's until they reach 100 families working in a garden. The illustrations are great and every page contains the exact number of images as the number listed.

The Crayon Counting Book by Pam Munoz Ryan and Jerry Pallotta. Illus. by Frank Mazzola, Jr. 1996. 32 p. Charlesbridge Publishing, (978-0881069532). Gr. 2.

This is a great book for skip counting by 2s. They start off with zero crayons and take you through skip counting all the way to 24. This book can also be used for odd/even as the back page directs you to go back and start with 1 and start skip counting odd numbers. They lots of fun rhymes to get through it all.

The M&M's Counting Book by Barbara Barbieri McGrath. 1994. 32 p. Scholastic Inc., (978-1570913686). Gr. 2.

This book is a fun counting book that you could incorporate actual M&M's with for students to use as manipulatives (with parent approval of course). This is a basic counting book up to 12 but could be used with assistance in skip counting as well as odd and even. They group them together in sets on the last few pages.

Two of Everything by Lily Toy Hong. Illus. by author. 1993. 32 p. Albert Whitman & Company, (978-0807581575). Gr. 2.

This is a Chinese Folktake about Mr. Haktak and his magic brass pot. Everything Mr. Haktak and his wife put into the brass pot comes back out doubled, including themselves! This is a great book for skip counting by two and doubling items up.

Web Resources

This is a fun YouTube video that takes students on a hike up a mountain while counting by 10's to reach 100.

I really liked this website as a resource for teachers. It lists several activities for teachers to help in teaching the odd/even number concept. There are songs and several different ideas to be used in the classroom.

This website has several links to different even and odd math worksheets. These could be used in class for reflection and assessment or for homework.

This is a great website for students to practice skip counting. There is a lot of review and several games.

This website takes you to a fun game where students can select which number they'd like to skip count by.

This website has several power points to be used for skip counting. There is a section for teachers and also a section for games for students.

For Teachers

*VA Standards of Learning*

2.4. The student will

a) count forward by twos, fives, and tens to 100, starting at various multiples of 2, 5, or 10

b) count backward by tens from 100; and

c) recognize even and odd numbers

*Background Information from Curriculum Framework*

- Skip counting by twos supports the development of the concept of even numbers.
- Skip counting by tens is a precursor for use of place value, addition, counting money, and multiplying by multiples of 10.
- Odd and even numbers can be explored in different ways (e.g., dividing collections of objects into two equal groups or pairing objects).

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