Apangea is an online math resource partially funded by the state of Indiana. It is primarily geared towards high school students taking the Algebra I ECA, but can be used for grades 3-12 with varying content. I use Apangea as part of my math lab.
My students were getting bored with just completing basic worksheets or problems from the book; so i went looking for something a little more fun that wold not take me forever to create. In my search I ran across these PDF sheets. This is a collection of math worksheets where your answers solve a puzzle or riddle. My students like having these puzzles to solve and though they may act disinterested, they are always proud when they are the first to solve the riddle. This is just a simple way to make practice a little more fun.
Khan Academy has great video clips with detailed explanations of every middle and high school math topic (including linear algebra and statistics!) It's great for giving some variety in INM for students and having students practice note-taking skills by watching short video clips. It's also a great place to figure out how to explain complicated math topics.
Sejin, this is one of my favs! Science teachers and social studies teachers there are also excellent short clips on chemistry, biology, physics, economics and money and banking. Sal Khan's story is worth a look. He's a Ted talk presenter, has been featured on several news programs. This resource is excellent.
I love how this website provides lessons that make math more relevant to our students. I haven't used any of the lessons from start to finish, but I've used bits and pieces of each lesson and love the ideas I get from this website.
This is a great resource to allow students to work at their own pace. It reinforces quick recall of addition, subtraction, multiplication, and division problems. It is great for both elementary and middle school students.
great worksheets and activities for students in Elementary grades. This website has both math and ELA activities as well as many holiday and seasonal activities.
Great resource for math teachers...this website provides all different templates for graphs, numbers lines, etc. I use it on a daily basis--it's super easy to copy and paste these blank graphs into worksheets, and they are super clear when you copy them in.