Teachers First - Thinking Teachers Teaching Thinkers

This fabulous collection of lesson plans, activities, and web links from NCTM is a professional treasury for math teachers. The two menu selections at the top, Lessons and Interactives, are actually drop down menus to find lessons by grade levels, Brain Teasers, Mobile Apps, a Web Sketchpad, and more. The interactives are a challenging practice for concepts ranging from basic fractions and graphing to congruence theorems. Narrow your search with keywords. Each activity includes a description and grade level recommendation. Highlighted activities and Lessons on the home page change often. Many lesson plans also include technology links, but others are low-tech or no-tech. Illuminations is created by NCTM.

This is a collection of science and math lessons and web resources ranging from how the Internet works to nanoscience, engineering, biology, and principles of physics and chemistry. The content is predictably detailed, "real science" based on topics and phenomena that will interest students. These are the best of the best lessons and resources with applicability to lots of settings.

This site allows you to create and print different types of graph paper in a PDF format. The site is easy to use and takes you through each step needed. First choose the type of graph paper from the eight different offerings including Cartesian (the most popular) and hexagonal. Next choose paper size, measuring units (inches or millimeters), then choose the paper created from the list offered. Just print after the graph paper is created.
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Have fun exploring Pi with this math site! Play Pi Trivia to test your knowledge of Pi, use the Pi Trainer to test your memory, or discover poems, photos and more all representing Pi. The site is divided into three sections - fun activities, aesthetics, and nerd stuff- making it easy to explore.

This applet is perfect for practicing finding the area and perimeter of regular and irregular shapes. After a shape is shown, there are boxes to input the answer to the area and perimeter of the provided shape. Options are also provided to adjust the size of shapes, to allow only rectangular shapes, and to allow scoring. The learner portion of the site provides an overview of area and perimeter. Be sure to check out the instructor section for links to standards, information for classroom use, standards addressed, and links to similar resources. There is also a printable exploration questions worksheet that can be used in the classroom.