Dominant or Recessive?
Students determine whether two mutations in fruit flies are caused by dominant alleles or recessive alleles. Assesses students' understanding of the inheritance of dominant and recessive alleles, Punnett squares, and probability. Scoring rubric and background notes included.Grade Levels: 6 - 10
Excerpted from
Pearson Prentice Hall
Excerpted from Prentice Hall Science Explorer Resources Pro CD-ROM © 2000 Pearson Education Inc., publishing as Pearson Prentice Hall. Used by permission.
December Events
Find educational resources for every day in December. Fill your December lessons with activities for Hanukkah (Dec. 21 -- Sundown), Winter Solstice (Dec. 21), Christmas (Dec. 25), Kwanzaa (Dec. 26), New Year's Eve (Dec. 31), Universal Human Rights Month (Dec.), World AIDS Month (Dec.).
Rulers & Number Lines
Take a look at our collection of printable rulers and protractors and number lines and place-value charts.
Letter-Writing Activities
Develop students' composition skills with these printables and activities. Students will learn about basic letter formats and practice writing formal, persuasive, and friendly letters.
Walden Forums
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2009 Educators' Calendar
There's something worth celebrating every day! Find fun and educationally relevant holidays, events, and celebrations for each day of the year.
Printable Maps
Enrich your lessons with our collection of printable world maps depicting continents, countries, capitals, political boundaries, lines of longitude and latitude, climate zones, oceans, land forms, and more. Plus, browse our collection of Unites States maps.
Daily Printables
Add a TeacherVision widget to your blog, personalized homepage (such as iGoogle or Pageflakes), or social networking sites (such as Facebook). Our widgets feature a different fifth-grade language arts printable or fourth-grade math printable for each day of the year.


