#### Unit Plan

## Measurement

### Alignments:

### Grade Levels

### Related Academic Standards

### Assessment Anchors

### Eligible Content

### Big Ideas

### Concepts

### Competencies

### Objectives

Students will develop strategies for measuring time, length of time, and length of objects. They will apply measurement strategies to estimate and calculate perimeter and area. Students will:

- identify time to the minute on digital and analog clocks.
- investigate the relationships between time on a clock and time on a calendar.
- relate time on a clock to length of time or elapsed time.
- select and apply appropriate standard and nonstandard units and tools to measure length and width.
- apply concepts of measurement and estimation to select appropriate tools and find perimeter of regular and irregular shapes.
- relate perimeter and area using concrete objects.

### Essential Questions

- What makes a tool and/or strategy appropriate for a given task?
- How are spatial relationships, including shape and dimension, used to draw, construct, model, and represent real situations or solve problems?
- Why does “what” we measure influence “how” we measure?
- How can recognizing repetition or regularity assist in solving problems more efficiently?

### Related Unit and Lesson Plans

### Related Materials & Resources

The possible inclusion of commercial websites below is not an implied endorsement of their products, which are not free, and are not required for this unit.

- AAA Math, http://www.321know.com/geo.htm, see the learn, practice, play, and explore activities related to perimeter and area.
*Carrie Measures Up*by Linda Williams Aber. Kane Press, 2001. A lower-level book that introduces measurement through sizing up everyday objects around the house.*Game Time!*by Stuart J. Murphy. HarperCollins, 2000. A MathStart book to teach time in weeks, days, hours, minutes, and seconds.*How Big Is a Foot?*by Rolf Myller. Yearling, 1991. A book that teaches a king that measurement by his foot and by the foot of the young apprentice result in very different outcomes.*How Big Is It? A Big Book All About Bigness*by Ben Hillman. Scholastic, 2007. A collection of amazing size comparisons to build an understanding of what*big*really means.*How Do You Know What Time It Is?*by Robert E. Wells. Whitman, 2002. A history of time measurement, including clocks, calendars, and time zones, written specifically for children.*How Long or How Wide? A Measuring Guide*by Brian P. Cleary. First Avenue Editions, 2009. A humorous approach to measuring length and using measuring tools.*How Tall, How Short, How Far Away*? by David Adler and Nancy Tobin. Holiday House, 1999. A book that introduces several measuring systems and presents the need for standard units of measure.*It’s About Time, Max!*and*The Long Wait*by Kitty Richards. Kane Press, 2000. When a young boy loses his digital watch, he replaces it with an analog watch that he must learn how to read; the partnered story in the book,*The Long Wait*, tells about estimating time while waiting in line for a thrill ride.- IXL Math Practice Site, http://www.ixl.com/math/grade/third/, free online practice questions for time, measurement, geometry, and other math concepts.
*Just a Minute!*by Jeff Szpirglas. Maple Tree Press, 2009. A fact-filled look at elapsed time of a minute, a day, a month, and a year.*Keep Your Distance!*by Gail Herman. Kane Press, 2001. In the context of sibling rivalry and sharing a room, sisters learn about measurements of distance and time.*Length (Measuring Up)*by Peter Patilla. Belitha Press, 2000. An interesting discussion of measuring systems past and present with examples of unusual lengths.*Take It to Your Seat Math Centers Grades 3–4*by Jill Norris. Evan-Moor, 2004. Practical ideas for learning centers including perimeter and area.*Racing Around*by Stuart J. Murphy. Steck-Vaughn, 2002. A story of racing around a perimeter.*Spaghetti and Meatballs for All!*by Marilyn Burns. Scholastic, 2008. A delightful way to compare perimeter and area as 32 chairs are arranged and rearranged at a family reunion.*Super Sand Castle Saturday*by Stuart J. Murphy. Steck-Vaughn, 1999. A tale of using nonstandard units of measurement to compare sizes of sand castles.*Telling Time*by Jules Older. Charlesbridge, 2000. A humorous look at what it means to tell time and to learn about smallest units of seconds, minutes, and hours to largest units of weeks, months, years, and more.- Telling Time, http://www.bbc.co.uk/wales/snapdragon/yesflash/time-1.htm, telling time to the hour.

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