Khan Academy offers free online courses, learning resources, and test prep on STEM and history topics for toddlers through young adults. The former are comprised of highly accessible readings, video lectures, and interactive quizzes; some are taught by founder Sal Khan, while others are led by...
Here is :When I jumped and reviewed again my second round quiz part after the class, I followed and chose again the correct answer which the system told me from the first round quiz , but the system still reminded me it was a wrong answer. I even chose all answers one by one when ...
Infrastructure: Networking Devices Part 2 This week, we continue to explore further the topic of week 1. Please be aware that the quiz of this week will cover both week 1 and 2. WEEK 3 Infrastructure: Physical Infrastructure and Wiring (Part 1) ...
For example, I took 2 courses and for the first one (Creative Problem Solving) I have the discount but for the second (Science of Exercise) I need to pay for the certificate and to submit my answers on quizzes. Reply sajawal 4/7/2020 at 1:26pm just refresh the main page and a...