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"What it is: Any time students can dig in and discover learning for themselves, I consider it a success.  Recently I ran across the BBC's DIY build a catapult.  The site lets students explore the history behind the catapult, learn how to build one step by step and then discover principles of velocity, acceleration, force, distance and math.  With the popularity of games like Angry Birds, I think a lesson in the science and math behind the catapult is in order.  I like the step-by-step nature of this site and the way that kids are guided through a series of directions. How to integrate BBC Build a Catapult into the classroom: Begin with a time of inquiry where students can inquire into how catapults work, what they can launch, what they have been used for in the past and the science and math behind the catapult.  This site will help answer a lot of their questions and even prompt some additional questions.  Students can follow the step-by-step directions for constructing their own catapult.  Give students the opportunity to test their catapults, using the science and math concepts behind the catapult to predict where object will land based on angles and mass.  The science section of the site does a fantastic job of illustrating vertical velocity, horizontal velocity, the circumference of a circle, acceleration, force and mass.  These can be hard to understand concepts on paper (or in textbooks) but when students can see the concept illustrated and apply it, they will begin to build a framework of understanding. After students understand the concepts of building a catapult, ask them to try building a catapult out of different types of supplies, do some energy sources work better than others?  Ask students to think about objects in our modern-day lives that use the principles or science used in a catapult. Students can access this site from classroom computers as a learning/building center or go through the steps as a class using a projector-connected compu

Kathy Schrock has put together iPad apps that connect with Bloom's Taxonomy. It would be interesting to see if any of these are available for iPod as well 

 Learning Box has a virtual version of base 10 blocks that builds in a fun practice game.  Students are given a target number and drag base 10 blocks onto the paper to represent that number.  As students add blocks, a counter at the bottom of the page shows how many blocks are currently on the paper.  This is a great way for students to digitally practice place value, counting by hundreds, tens and ones.  The Learning Box Base 10 blocks are a great example of a virtual manipulative.  They help students visually represent numbers and place value.  I like the way the slider and cups on the bottom of the page help track student progress as they drag blocks to the paper. When students get the target number, they don't start with a blank slate, instead a new target number is given and students have to figure out which blocks to add or subtract. You can adjust the level of difficulty and place values practiced by clicking on the 1, 10, and 100 circle to the left of the paper.Learning Box Base 10 would make a great center activity in the one or two computer classroom.  Students can use the digital manipulatives with the built in game or to help them represent real-world problems.Start a whole-class game with the Learning Box Base 10 blocks using a projector-connected computer or interactive whiteboard.  Students can take turns at the board solving the problem and "phone a friend" if they need some additional support. iLearnTechnology

How to integrate the NOVA Design a Parachute interactive into the classroom: In this activity, students assume the role of engineer as they design a parachute that will slow the Mars Explorer Rover as it lands on the surface of Mars.  I like the authentic feel of this activity, students are led through the thinking process of an engineer as they consider all of the requirements the chute must meet before they begin designing. Approach this interactive as a class using an interactive whiteboard or projector-connected computer.  As a class, get "briefed" on the requirements for the parachute design.  Discuss how these requirements may impact the parachute design.  Treat this like an actual briefing and encourage discussion (all ages like to pretend!).  Before students access the interactive, ask them to sketch their thoughts about parachute design.  This lets them think through the design apart from the pre-determined categories presented in the interactive. Students can design and test their parachutes individually in a one to one computer lab setting or take turns designing and testing in a computer center lab on classroom computers. Debrief after the interactive to discuss the parameters that were the most successful and what students learned about volume, drag, strength and stability. Extend this activity by creating a mock-up of the parachute they designed online.  Find a high place on the playground or in the building where students can test these parachutes.  What did they have to adjust for an Earth bound parachute? Tips: The NOVA page has a great introduction paragraph about how engineers approach a problem.  Be sure to read it with your students!  Encourage students to learn more about the Mars Explorer Rover before designing the chute.  It may adjust their thinking!From I Learn Technology blog

Moon Zoo actually lets your students take part in science.  They are contributing to actual lunar research in real and meaningful ways while learning about the moon.  Moon Zoo would be a great activity to complete as a whole class in the elementary classroom.  Tell your students that they are going to be astronauts and complete a "launch" to the moon.  If you have time, students can create official astronaut badges to wear for the big launch.  Using a projector-connected computer or an interactive whiteboard, launch one of the shuttles here.  When you "land" on the moon, let students explore the surface together by hunting for craters in Moon Zoo.  Help students mark craters, look for boulders and map the lunar surface.  Each student should have a chance to make a discovery.  While students wait for their turn, they can track the crater/boulder count on a table to create a graph.  Categories can be small, medium, and large craters found and number of boulders.

A site with idioms listed in alphabetical order and by groupings: i.e Animal Idioms. Also includes quizzes

Images of buildings in Alberta that reflect the architecture of cultures in India, Ukraine and Tunisia

designed to help students practice recognizing scams and dangers online. That game is appropriate for elementary school students.