My Name is 6 x 7 ...and like any great idea it was stolen from another teacher (Mrs P-W, two rooms down) who found it on a web-site somewhere. For the day, all kids in Year 4 were given a sticky label with a multiplication fact written on it - this became their new name for the day. Here's 48 and 64.... ...and 108 having a chat with 56.... ...and 63 with 144! We all had to use our new "names" for the whole day. Teachers also participated - I became Mr 42 (or 6 x 7). GraphSketch mental_floss Blog & Ugly Bugs Advances in macro photography and the development of the electron microscope have shown us a world nature never intended for us to see. Over the years, they've shown us how very ugly insects can be if you take a close look! Mosquitos are considered ugly even when we don't get a closeup view. Our model seems to have lost one antenna before posing for a portrait. This picture is from Lehigh University, where you can get a short course on electron microscopy. A wolf spider looks much more menacing when you stare him in the face. Continue reading for bugs that take prizes for ugliness. The Oklahoma Microscopic Society has an annual Ugly Bug Contest. This Carolina Sphinx Moth was one of the Grand Prize winners in the 2007 Ugly Bug Contest. This prizewinning photo of a Spiny Assassin Bug was submitted to the Oklahoma contest in 2007 by Community Christian School in Norman, Oklahoma. Male seed beetles have penises covered with sharp spikes that can cause injuries to the females.
Math Trainer - Times Tables Get in some serious math training. Responds to your answers, so it trains your weaknesses. Train yourself to remember, don't count (the cutoff time helps with this) New Version! Features of the Math Trainer Cutoff Time The Cutoff Time is there to help you! It means you only have a few seconds to answer each question. At first it seems hard, but as you start to remember you get better and better. (Without the cutoff time you can count to get each answer and never truly learn your tables.) Choose 4 seconds for best effect. Timing You can make good progress by having 3 sessions of 5 minutes every day.
Mathletics.com - Love Learning - USA's Number 1 Math Website Resources Maths - Resources Maths Investigations Games Test Yourself Revise Other Stuff Resources Feedback Updates Links Source File Types PDF file. You might need to install Acrobat Reader to view and print these files. Open Document An open standard for office documents. Microsoft Office These may or may not be compatible with the version of Office you have installed. Zip archive A zip archive is a convenient way of combining and compressing several files into one single file. WWW link Link to another site. Stationery | Starters & Puzzles | Worksheets: Number | Worksheets: Geometry | Worksheets: Statistics | Miscellaneous Stationery This section contains printables that you might find useful. Links Graph paper generator (incompetech.com) Make your own graph paper! Statistical graph papers (weibull.com) More downloadable graph papers Starters & Puzzles Worksheets - Number Worksheets - Geometry Worksheets - Statistics & probability Miscellaneous
Yoda How much Force power can Yoda output? —Ryan Finnie I’m going to—of course—ignore the prequels. There’s a great SMBC comic exploring the geopolitical consequences of having Superman turn a crank to provide an unlimited source of energy. We could imagine Yoda using the Force to run a similar generator. But how much power could he really supply? Yoda’s greatest display of raw power in the original trilogy came when he lifted Luke’s X-Wing from the swamp. The energy it takes to lift an object to height h is equal to the object’s mass times the force of gravity times the height it’s lifted. First we need to know how heavy the ship was. m_{x} = m_{f22} \times \left(\frac{12.5}{19}\right)^{3} \approx 5,600\mathrm{kg} Next, we need to know how fast it was rising. Lastly, we need to know the strength of gravity on Dagobah. Nope. \frac{5,600 \mathrm{kg} \times 0.9\mathrm{g} \times 1.4 \text{ meters}}{3.6 \text{ seconds}} = 19.2\mathrm{kW} That’s enough to power a block of suburban homes.
How to Make a Simple Electric Motor Energy comes in many forms. Electric energy can be converted into useful work, or mechanical energy, by machines called electric motors. Electric motors work due to electromagnetic interactions: the interaction of current (the flow of electrons) and a magnetic field. Problem Find out how to make a simple electric motor. Materials D battery Insulated 22G wire 2 large-eyed, long, metal sewing needles (the eyes must be large enough to fit the wire through) Modeling clay Electrical tape Hobby knife Small circular magnet Thin marker Procedure Starting in the center of the wire, wrap the wire tightly and neatly around the marker 30 times. What is this? Ask an adult to use the hobby knife to help you remove the top-half of the wire insulation on each free end of the coil. Thread each loose end of the wire coil through the large eye of a needle. Lay the D battery sideways on a flat surface. Use electrical tape to secure the needles to the ends of the battery. Give your coil a spin. Results Why?
Free Fractions Tools | Conceptua Fractions Conceptua Math includes interactive, visual tools that are ideal for teacher-facilitated, whole-class instruction, "Number Talks" and for parents supporting their students at home. These tools, available free of charge, are located under the Tool Library tab in our full curriculum. The full Conceptua Math curriculum includes integrated teacher supports, adaptive teaching, student investigations, and much more. Teachers Build Instructional Expertise with Supports Teachers start with scripted Lesson Openers to introduce concepts and generate fraction Number Talks with the whole class. Sample Opener > Students Learn through Guided Lessons The Guided Lessons form the foundation of the program. Sample Guided Lesson > Students Apply Knowledge through Investigations Real World Investigations provide opportunities for students to use authentic data and apply their mathematical knowledge. Sample Investigation > Interested in learning more about the Conceptua Math breakthrough visual curriculum?
Build a Touchless 3D Tracking Interface with Everyday Materials Combine low-tech materials with some high-tech components and build a completely Touchless 3D Tracking Interface. Explore capacitive sensing by using several panels of cardboard lined with aluminum foil. These panels, when charged, create electric fields that correspond to X, Y, and Z axes to create a 3D cube. With the aid of an Arduino microcontroller and some supplied code, movements inside the cube are tracked as your hand moves around inside the field. For Weekend Projects makers looking for an introduction to Arduino, this is a great project to learn from. Once your touchless 3D tracker is up and running, what you do with it is only limited by your own imagination! Make an RGB or HSB color pickerControl video or music parameters; sequence a beat or melodyLarge, slightly bent surface with multiple plates + a projector = “Minority Report” interface More: See all of the Weekend Projects posts Related