For Primary Teachers 
Here are some sites that might help in building your units on the following:
Butterflies
Butterfly World
Monarch Watch
Journey North
Butterflies at the Field Museum
Children's Butterfly Website
All About Butterflies information can be share with kids
Katerpillars and Mystery Bugs
The Butterfly Collection Lots of great links
Monarch listen to the answers
Butterfly and Moth Print Outs good pictures
Butterfly Math Coloring Page
Butterfly Pictures great photos of many kinds
Butterfly coloring pages The life cycle
Butterfly Optical Illusion Thsi would be a great activity to do with an older buddy class.
Symmetry Make a simple balancing butterfly.
Where Do Butterflies Come From This is a great visual art project that will ehlp children remember.
Other Insects
Arachnology for young ones
Arthropod Museum cool pictures
Entomology for Beginners
Bug Records trivia
Most Wanted Insects the bad ones
Bee Eye See the way the bee sees
Coloring Pictures
Insect Print Outs simple pictures
Spider concentration Game
Insect Clipart
Insect Dominoes
Print these out, cut and combine math with your insect study.
Teacher Stuff for Butterflies and Insects
Butterflies and Caterpillars - great learning songs and more
Going Buggy learning songs about insects
Symmetry
Monarch Butterfly a webquest for Kdg.
Where do Butterflies Come From? neat activity
Blooming Butterflies a very basic webquest to get them started
Caterpillars to Butterflies
Earth's Birthday: World of Butterflies lots of great activities
Life Cycle of a Butterfly good pictures and information to share with kids
Butterflies Take Wing kids did these activities
Butterfly Gallery lots of great pictures
Caterpillars, Butterflies great poems and song
Butterfly Center Almost everything you need to create on in your room
Monarch Butterfly Project ideas and examples from a second grade class
Now You See It print out the patter and create an optical illusion
Create Your Own Butterfly Picture Books Get an idea from the example.
Food to Grow On an interesting lesson with lots of tie-ins
Very Cool bugs great pictures to share with the class
Using Live Insects in the Classroom
UA Center for Insects
Butterflies a great idea for a unit
Three Basic Lessons about Insects for Young Children
What's Bugging You? ideas for lesson plan
Spider Art
Spiders: Activities from the Smithsonian Institution Traveling Exhibition Service
Insect/Spider Worksheets several really good ones for varying grade levels
Why Don't Spiders Get Caught in Their Own Webs? activities to help understand
Spider Unit
Spiders songs and poems about them
The Legend of the Christmas Spider
Make a Spider Glider
Spiders an integrated lesson
Bug Fun art projects and more
The Hungry Caterpillar goes with the book
Bug Jester fun things to share with the kids
Minibeast Folklore
Kids Domain
Celebrate Earth Day with Lorax
Happy Earth Day Activities Book - needs Adobe Acrobat Reader - It is a great coloring and activities book that you can print out.
Color Your World many pages are environment related.
The Kids' Page - lots of things to explore - it requires Adobe Acrobat reader and has good ideas to print out.
Crafts - the mother Earth one might be fun
Grocery Bag project This was a national thing last year, but it might be a good art project
Recycle for the Birds how to make bird feeders from simple things found around the house
Earth Dog - a story some can read or you can read to them if the monitor is hooked to the computer
Crabby Kathy - a story about the environment
Sharon Finds the Environment - a cute story
Plants and Our Environment - done by students as a Thinkquest project
Charlie Was Just a Chipmunk - an easy to read story
Freddie and Malachi - an easy story about the dangers of lead pollution
Endangered Species Coloring Book Scroll down to find the pictures and then print those you might like.
Woodsy Coloring Sheets - cute coloring pictures
Nature Recyclers Coloring Book - Adobe Acrobat Reader needed
Litterbug Mini Poster free to print
Kids Poems These might be fun to share as they are written by kids not much older than the ones you teach
Birds at Our Feeder - a simple but fun lesson and activity
Experiments lots of things to do to promote recycling
Earth Day Cards You could send them to parents if the kids had their email address - you might need a parent volunteer to help with the typing.
Rain Bird Rainforest Activities - good activities by grade level
Weather Experiments and Activities
Make a Thermometer
Weather in a Box - demonstrates the water cycle
What's the Weather? - record the weather
Wind Affects People - explore the effects of wind on humans and make wind socks to explore wind scales
Leaky Water Bottles - learn about condensation
Background and More
Weather Coloring Books for Children - print them out to help students learn
Clouds and Precipitation - good pictures
Cloud Boutique - picture and information
Weather Map -lots of real time maps available
Lesson Plans
Cloudy with a Change of Meatballs - goes along with the book
Cloud and Sky Watcher - become aware of the different colors of the sky and clouds
Weather Unit - activities integrate into various subjects
Observing Clouds - a good excuse to go or look outside
Observing the Weather Outside - a Kidpix activity
Windy Things to Make - would be a good activity with an older buddy class or home project
Animal Homes - an enrichment unit
Bat Homes - a primary lesson plan
Bat Research - a primary lesson plan
Animals and Their Habitats - a basic lesson plan
Animal Communities -find out about an animal community in Africa
Animal Houses - from Dragonfly magazine
Habitat Design Project - design your own project for older students could be adapted
Neighborhoods - lots of links
Habitat Sweet Habitat - activities
Habitats - explore
Animal Omnibus - an on-line animal encyclopedia
Animal Picture Archive
Animal Information Database - from Sea Wold
Animals, Myths & Legends - easily adapted
Backyard Animal Habitats
Information Sheets - on using live animals in the classroom
Animal Snapshots great information from the San Diego Zoo
Animal Habitats - habitat pools: Marine Mammals and Sea Birds
Arthropods at Home design a healthy habitat and observe
Biome, Habitat, and Ecosystem Resources - links to lots of sites
Animals - the animal web page of this site has great coloring pages and more
Antarctic Penguins - great photos
The Penguin Page good background
Pete & Barb's Penguin Pages - there are more than 150 of them packed with good information
Some Pictures of Penguins great pictures
Penguin Picture to Color a good one
Penguin Cam from Sea World Florida
Penguin Links lots of information and a live cam too
Penguin Capers a lesson plan
Penguins a lesson plan
Tacky the Penguin a lesson to go with the book
Penguin Activity Sheets There are many varied ones from which to choose.
Penguins songs and poems about them
Mrs. Bee's Antarctic Pages activities and links
Penguins a first grade unit with examples and activities
Penguin Adaptation background and ideas
How to Draw a Penguin in easy steps
Draw and Color a Penguin with Uncle Fred easy to follow
Penguin picture to color
Penguin Mask Download and print this mask of a Rockhopper Penguin.
Penguin information sheet to color
Paper Mache Penguin the directions
Penguin Craft activity to combine with a book
Penguin Graphics good for worksheets etc.
Penguin Poems most are short and easy
Antarctic Outline Map a blackline master to print
Count the Penguins
Penguins in Education - lots of age appropriate ideas for the classroom
Fairy Tales activities, lesson panes, links and more
Primary Resources fun activities for several including twisted tales
Fairy Tale Units mini units to use on some of the classics
Fairy Tale Unit One of the really good sources - is in word doc. format
Big Bad Wolf activity where the "police" interview the wolf.
Rules Can you tell which rule matches which tale?
Children's Story The classic tales might be hard for the students to read, but they will enjoy it when an adult reads to them.
Little Red Riding Hood Project all kinds of variations
The Three Little Pigs basic activities
Fairy Tale Headbands and Dramatics fun activities with the Three Little Pigs
Story Telling Ideas 20 activities that you can use or adapt
Cooperative Fairy Tale Project Parts of this would be great to do with "big buddies".
Tales Activities many ideas to use and enjoy
Fairy Tale Links to lots of the classics
Tales of Wonder stories from around the world
Primary Math - great lessons on geometry and measurement
Teachers First
Teachers.net
A to Z Teachers Stuff
Blue Web'n Learning Library
Teacher Files.com
Project Primary
Baltimore Curriculum Project Lesson Plan Index
Learn NC Lesson plans from the North Carolina Teachers Network
First Grade Science... - from the State of Utah
Perfect images for newsletters, fun worksheets, web pages, and more.
School Related Graphics animated and non-animated images
Download Gallery - This is a huge searchable gallery from Microsoft with many appropriate pieces of clip art.
Teachers Net Clipart basic images
Bry-Back Manor Clipart lots of categories and good for holidays
Teacher Files: Clipart by category
Kid's Domain Clipart Index many great images for young kids and school
Surf Madison Library huge collection of black and white images
GEWIS Clipart Library Index varied black and white images
Paper Tiger ClipArt vintage black & white images
Image Attic some good holiday graphics and more
Image Library various categories
Creative Insanity lots of fun graphics
Graphics for Teachers cute and colorful
Hobo's Country Graphics enjoyable and different
Coop's Teacher Graphics original and colorful
Back to School Clipart - varied and colorful
Paint Pots cute and varied collection
School Daze graphics are arranged by subject
Grandma George's Graphics cute country images
My Creations kids and school images
Softseek.com - Clip Art a large collection of varied images
Microsoft's Clip Gallery Live huge collection for those who use Microsoft Products
Graphics for Teachers small collection with other things on the site too
Holiday Graphics huge list of links organized by holiday
Kids Domain:Holidays There is a link to great clip art for each of the holidays and activities
Lynne's Library Graphics well organized
Library Graphics many from which to choose
Web Page Creation Graphics small but different collection
Discovery School Clipart well organized
Clips Ahoy: School - categorized for ease of use
D & W's Educational Clip Art the quality of pictures vary, but may are good
Flowers, Tree, and Plants links to sites
Animal Clipart images and links to sites
Earth Science Clipart arranged by subject
Graphic Man's USA Images all kinds of US maps and state maps
PageWorks superior animated graphics for web pages
Thank You awards to be given at Thanksgiving
You're Special for lots of choices for Valentine's Day
Christmas Certificates over a dozen
Official Santa's Helper just one
Certificates for different occasions
Good Citizen Certificate free to print
Awards great pictures from Discovery School
Award Maker create your own
Awards a few cute ones
Certificate Creator many choices
Awards for Children lots of great choices
Success Award Certificates great and large collection
Certificate Maker adult-like certificates to customize
Cyber Certificate Maker Create them on-line.
Kids Awards some are appropriate to send from BlueMountain Arts
Black Dog's Awards and Congratulations more good awards to send
Awesome Awards to send to a friend
Printable Award Certificates - cute certificates from Billy Bear
Awards and Certificates - from Teachervision
Awards and Certificates nice primary ones from raising a daughter.com
Not Just for Kids Certificates cute ones
Certificates and Memories Many choices with some good for the little ones
Certificates mostly math-related cute certificates
Resources Certificates, labels, and posters in PFD format
Did you know? Great for Award templates
Best Dad Ever Award send this award email
World's Great Dad Award perfect to give
Coupons for Mom great as a gift
World's Greatest Mom Award just right for Mother's Day
Greatest Mom Award print this out
Promise Coupons for Mother's day
BumperStickers great desk top reminders for printing, colors, name tags, and more
Dinosaur Writing Paper Cute
Snowman Writing Paper black and white and easy to print and reproduce
Pages on Line pages from Copycat Magazine - Be sure to check the archives!
How to Make a Pop Up Card great for an award message
Personal Educational Press Here is a place where you can make your own personalized flash cards, bingo cards, and much more.
Activity Pages - over 200 from which to choose
Tutorial World - organized by grade level
Activity Pages - excellent large and varied assortment
On-line Worksheet Project - several areas of choice
Printable Worksheets - many different choices
Dositey Wroksheets - for math and language arts
Quality Teacher Resources - organized by year and subject
Internet Educational Workbook - in both interactive and hard copy formats
Structured Curriculum - lots of reproducibles in PFD format from the Chicago Public Schools. (Also use the k-2 handbook section.)
Lessons and Reproducible - organized by grade level from Scholastic
Superkids Worksheet Creator - choose from various types
Grade 1 Worksheets - choose from math and spelling which you can use or create your own
The Flashcard Exchange - links to lots of kinds
Print and Learn Worksheets - Learn about math and numbers
MathWork Worksheets - create your own
Math Worksheets - from Bry Back Manor
Mathematics - Many worksheets from the UK
One Million Math Sheets - tailor them to you specifications
A+ Math Worksheets - covers the basics
Flash Card Creator - design and print your own
Kids Math Word Problems and Practice - many activities are appropriate here.
Rick's Math Web - there are many appropriate ones here.
Educate the Children: Numeracy - many activities in PFD format are appropriate
Math Stories - great story problems by subject and grade level.
Math Fact Cafe - choose from a variety of types of worksheets.
Addition Worksheets - many for use
Free Worksheets for Whole Number Arithmetic - some are appropriate
Making Numbers - good beginning activities
edHelper - lots of worksheet by grade and topic
Week by Week Essentials - excellent worksheets and strategies in PFD format
Teaching Time - great UK site with lots of ideas.
Clock Worksheets - a few from which to choose
Money Activity Sheets - many activities
Probability and Statistics - lots of activities and sites to use for graphing etc.
Phonics Activity Index many excellent activities
Phonics Worksheets - good for the beginning reader
Sight Words - various Dolch lists and much more
Educate the Children: Literacy - many PFD format materials are appropriate
Tampareads - lots of worksheets
Reading Vocabulary Word Lists - organized by grade and sound
Reading Comprehension - choose your grade level for a short passage and questions to answer
Writing Vocabulary Index - very well organized
Alphabet Memorizing Activity Sheets - cute and effective
Lined Printing Paper - Choose from small, medium, and large.
Handwriting Worksheets - several types available from Tampa Reads
Handwriting Worksheets - trace each of the letters on great paper
Six Trait Assessment for Beginning Writers - print and use
Handwriting Page Maker - create your own page for students to trace.
Alphabet Sheets - This one is D'Nealian, but they also have Zaner Bloser
D'Nealian - dotted trace letters
Index - you will not believe all the great worksheets available at this site.
Free Activity Page for Kids - some might be good
The Learning Page - hundreds of beginning worksheets and free books to download
Flash Cards - print letters, numbers, and more
Shape Books - lots of kinds to print and color
Color Me - many coloring and worksheets
Theme Sheets - a different organization of the above site makes it easy to find great worksheets on lots of subjects.
Templates by Donovan - templates for cards, birdhouses, and lots more
Puzzlemaker- you choose and make your own
Classroom Forms and Testing Dolch word lists and skip-a-line writing paper for download
Personal Education Press - create and print worksheets in the form of a bingo game, flash cards or many other formats
Fonts - free trace fonts, color fonts, and more to download
The Fonts - many different types of fonts to download
ABC fonts - Be sure to check out "worksheet"
Fontage - various kid's fonts
Print Clearly - dashed manuscript font
Primer Print - matches Zaner Bloser font
Free School Fonts - various types for download
Neal Font - dashed font similiar to D'Nealian
The Teacher's Parking Lot: Fonts There are manuscript and cursive types here.
Billy Bear's Fonts - several from which to choose
Fonts for Kids - fun fonts and more
Back to School Fonts - in both PC and Mac format
Handwriting Fonts - some are in manuscript and others are not
007 Fonts - scroll down to primer
Rosie's Alphabets - artistic and cute fonts in graphic format
Writing Paper - great for practice
Activities with KidPix - many great ideas
Kid Pix - great links to excellent ideas, templates, and more
Zoom Craft Projects - some are great
Spooky Crafts - fun for Halloween
Printable Paper Keyboard - click on the thumbnail for regular paper sized picture.
Launching K-3 Reading - discussions, assessments, and so much more
Educate the Children: Literacy - many PFD format materials are appropriate
Comment Ideas for Report Cards gives many ideas
Report Card Comments - lots of links to ideas
Assessment Coments - great comments from the UK - There are also some good certificated here.