This is Part 2 only. This complete topic comprises 7 by 1-hour lessons, broken down into two parts Part 1 - The fascinating History of Numbers tally marks, Sumerians & Babylonians Egyptians and Romans Mayans and Hindu Part 2 - Binary numbers the binary number system - how it evolved and how it works how computers use binary numbers, looking at text and images Each lesson comprises: a fully animated PowerPoint with explanatory slides loads of embedded videos (to extract, click here) worksheets and self-evaluation documents I have used it very successfully with students in years 5 through to 7 (with slight modifications), and all have absolutely loved the topic. Let me know if you have any questions or suggestions, and a BIG BIG thanks for looking (as a full time practising teacher, I KNOW how time consuming this process can be). ALL my postings are FULLY “classroom-tested” - before I publish, my lessons are tested by both myself and colleagues, rigorously evaluated and discussed, and continually updated to maximise their effectiveness. But there is always the possibility of error and room for improvement, so do please provide constructive feedback. Teacher/Author: Barrie James Search words: numbers, binary, ascii, bitmap, transistor, computer, programming, coding, algorithm, digital, image

The entire series of lessons on Micro-organisms provides enough material for over 10 one-hour lessons, but you can be selective. (bundle available) The series covers: Introduction to Micro-organisms The Microscope and Microscope Art Bacteria, The Immune System and Antibiotics Viruses, Vaccines and Virus Art Fungi & Fungi Art Additional misc. activities The lessons have proven extremely popular with both teachers and students and comprise: self-contained PowerPoint lessons packed with thought provoking material loads of painstakingly selected, embedded videos (if you need to detach the videos, see here) Worksheets (with answers) in Word providing individual and class activities. Note that there is no Preview File to download. Instead, Session 1 (Introduction) is FREE to give you a feel for the material - you won’t be disappointed. Let me know if you have any questions or suggestions, and a BIG BIG thanks for looking (as a full time practicing teacher, I KNOW how time consuming this process can be). ALL my postings are FULLY “classroom-tested” - before I publish, my lessons are tested by both myself and colleagues, rigorously evaluated and discussed, and continually updated to maximize their effectiveness. But there is always the possibility of error and room for improvement, so do please provide constructive feedback. Teacher/Author: Barrie James Search words: quarantine, vaccinate, pasteurisation, germ, antibiotic, inoculate, immune, yeast, immunize, pathogen, inhalation, microbe, virus, bacteria, fungus, organism, disease, microscope, electron, contaminate, epidemic, pandemic, electron, light, metric, lens, convex, concave, optical, symbiotic, exponential, infectious, infect, antiseptic, plaque, toxin, toxic, compost, mucus membrane, quarantine, vaccinate, pasteurization, germ, antibiotic, inoculate, immune, yeast, immunize, pathogen, inhale, habitat, spore, parasite, mushroom, toadstool, species, volva, gills, mycelium, disperse, mould, mildew