What's the best way for me to turn my edtech idea into a functioning web app to gain traction and raise seed round?

It's really ill-advised to solicit your vision from anyone. In my 20 years of building, investing and supporting tech companies, I don't know of a single success story that has it's origins in someone with your approach. Running a tech startup is incredibly hard. It demands sacrifices few are truly able to make and come with it tremendous risks that most people are unwilling to take. It sounds to me as if you want the startup life because you have an impression of what it's about but haven't yet experienced it first-hand. I'd encourage you to first join an early-stage startup. Developers are incredibly in-demand. Find an entrepreneur who has some experience, funding and a compelling vision that you believe in and get to know what the journey is really like.

Convertible notes are by no means "earned." They are often easier to raise for early-stage companies who don't want to or can't raise an equity round. Equity rounds almost always require a simultaneous close of either the whole round or a defined "first close" representing a significant share of the raised amount. Where there are many participants in the round comprised mostly of small seed funds and/or angel investors, shepherding everyone to a closing date can be very difficult. If a company raises money on a note and the company fails, the investors are creditors, getting money back prior to any shareholder and any creditor that doesn't have security or statutory preference. In almost every case, convertible note holders in these situations would be lucky to get pennies back on the dollar. It would be highly unusual of / unheard of for a convertible note to come with personal guarantees. Happy to talk to you about the particulars of your situation and explain more to you based on what you're wanting to know.

Whoa, start by reading the Lean book again; you're questions suggest you are making a classical mistake made by too many entrepreneurs who live and breath Lean Startup. An MVP is not the least you can show someone to evaluate whether or not building it is a good idea; an MVP is, by it's very definition, the Minimum Viable Product - not less than that. What is the minimum viable version of a professional collaboration network in which users create a professional profile visible to others? A website on which users can register, have a profile, and in some way collaborate with others: via QA, chat, content, etc. No? A minimum viable product is used not to validate if something is a good idea but that you can make it work; that you can acquire users through the means you think viable, you can monetize the business, and that you can learn from the users' experience and optimize that experience by improving the MVP. Now, that doesn't mean you just go build your MVP. I get the point of your question, but we should distinguish where you're at in the business and if you're ready for an MVP or you need to have more conversations with potential users. Worth noting, MOST entrepreneurs are ready to go right to an MVP. It's a bit of a misleading convention to think that entrepreneurs don't have a clue about the industry in which they work and what customers want; that is to say, you shouldn't be an entrepreneur trying to create this professional collaboration network if you don't know the market, have done some homework, talked to peers and friends, have some experience, etc. and already know that people DO want such a thing. Presuming you've done that, what would you present to potential users BEFORE actually building the MVP? For what do you need nothing more than some slides? It's not a trick question, you should show potential users slides and validate that what you intend to build is the best it can be. I call it "coffee shop testing" - build a slide of the homepage and the main screen used by registered users; sit in a coffee shop, and buy coffee for anyone who will give you 15 minutes. Show them the two slides and listen; don't explain, ONLY ask.... - For what is this a website? - Would you sign up for it? Why? - Would you tell your friends? Why? - What would you pay for it? Don't explain ANYTHING. If you have to explain something, verbally, you aren't ready to build your MVP - potential customers don't get it. Keep working with that slide alone until you get enough people who say they will sign up and know, roughly, what people will pay. THEN build your MVP and introduce it first to friends, family, peers, etc. to get your earliest adopters. At some point you're going to explore investors. There is no "ready" as the reaction from investors will entirely depend on who you're talking to, why, how much you need, etc. If you want to talk to investors with only the slides as you need capital to build the MVP, your investors are going to be banks, grants, crowdfunding, incubators, and MAYBE angels (banks are investors?! of course they are, don't think that startups only get money from people with cash to give you for equity). Know that it's VERY hard to raise money at this stage; why would I invest in your idea when all you've done is validate that people probably want it - you haven't built anything. A bank will give you a loan to do that, not many investors will take the risk. Still, know not that your MVP is "ready" but that at THAT stage, you have certain sources of capital with which you could have a conversation. When you build the MVP, those choices change. Now that you have something, don't talk to a bank, but a grant might still be viable. Certainly: angels, crowdfunding, accelerators, and maybe even VCs become interested. The extent to which they are depends on the traction you have relative to THEIR expectations - VCs are likely to want some significant adoption or revenue whereas Angels should be excited for your early adoption and validation and interested in helping you scale.

Generally speaking, Yes. I say this for a couple primary reasons. 1) If you do not place value in your product, why should the customer? And if you are not charging for it you are not placing value on it. 2) the customer will be more "invested" in the success of something that has cost them something. If it was free and it fails, "who cares"? if it cost them resources they may be more interested in making it work. There could be overriding factors, but this is where I start with a question of this nature.

Before I get to your question, let me give you a tip: always aim settle questions of payment before the work happens. It is ten times easier to agree on a price beforehand, and having done that doesn't stop you from changing it by mutual agreement later. The problem with paying cash is pretty obvious: you don't have a lot of it. The problems with paying equity are subtler. The first one is that early-stage equity is extremely hard to value. A second is that equity transactions require a lot of paperwork. Third is that entrepreneurs tend to value their equity much higher than other people would; if not, they wouldn't be starting the company. And fourth, people like designers are rarely expert in valuing businesses or the customs of of startup equity valuation. In the past, I've both given and received equity compensation, and it's a lot more of a pain than I expected. In the future, what I think I'd try is convertible debt. That is, I'd talk with the designer and agree on a fair-market wage. E.g. 100 hours x $100/hr = $10k. The next time we take investment, the $10k turns into stock at whatever price we agree with our investors, plus a discount because he was in before the investors. Note, though, that this will increase your legal costs and your deal complexity, so I'd personally only do this for a pretty significant amount of work. And I'd only do it for somebody I trusted and respected enough to have them around for the life of my business.