Our learn to solder pack is the ideal low cost solution for teaching soldering in the classroom/after school club. The pack provides all of the parts and PCBs required for a class size of 25 and also includes a 9V battery for testing purposes. Each pack comprises 25 x PCBs, 100 x 100 ohm resistors, 25 x LEDs, and a 9V PP3 battery.We have also produced a step by step guide to soldering, which covers equipment, solder, tinning & cleaning, soldering in 8 steps, de-soldering in five steps, wire preperation, examples of good and bad solder joints, basic PCB repair, resistor information, LED information, full step by step build information for the kit, and how the learn to solder kit works. This guide covers everything that you might need to discuss with students and can form the basis of your lesson plan.Using the kits and the step by step guide, each student will solder four resistors and one LED to their PCB before pressing it to the terminals of the 9V battery to check that their board works. Using the guides they will be able to examine their own work and troubleshoot problems. The battery pads on the PCBs have been shaped inline with the battery terminals on a PP3 battery making it straightforward to see which way around it should be placed on the battery.Features Purpose built PCBs that can be tested, once built, with the supplied 9V PP3 battery. Low cost classroom pack for 25 students. Easy build kit. Full teaching resources and step by step guides available for this kit below.Contents 100 x 100 ohm Resistors. 25 x Red 5mm Diffused LED – 275mCd. 25 x Learn To Solder PCBs. 1 x 9V Zinc Chloride PP3 Battery.