Some 20% of families reliant on the internet for their children's education have found they cannot access online resources because of poor broadband connection, a report has found.
Research carried out by insurers NFU Mutual found one in five of 1,600 parents quizzed were having to make more phone calls because of poor broadband connection.
Tim Price, rural affairs specialist for NFU Mutual, said: "As more educational resources become internet-based, country children risk falling behind their urban counterparts.
"Studying via the internet is now a key part of children's education and it's unfair that learning opportunities are being affected by slow internet speeds."
The announcement of small business grants for high speed broadband coincides with the Small Business Saturday initiative promoting the firms Mr Cameron described as the "lifeblood of our economy".
Up to £3,000 of broadband vouchers for small business in these cities is not only a massive boost for growth in the UK, but also has the potential to bring China to Cardiff, Brazil to Bristol and the Emirates to Edinburgh in an increased export market.
To do that we are working on a complete overhaul of the UK's infrastructure; high speed broadband is a vital part of this. And on Small Business Saturday, what better way to support small businesses - the lifeblood of our economy - than to help kit them out for the 21st century.
Small businesses in 10 cities across the UK will be able to apply for grants to install high speed broadband as part of a £100 million scheme to boost growth and exports.
Firms in Belfast, Salford, Portsmouth, Cardiff, Derby, Bristol, Edinburgh, Newport, London and Manchester will be able to access grants worth up to £3,000 to improve their connections, with the scheme due to be extended to 12 more cities next year.
Prime Minister David Cameron said he wanted to give firms the ability to set up or locate anywhere in the UK.
Network Rail is to roll out "high speed mobile broadband" across the country's busiest lines, Transport Secretary Patrick McLoughlin has announced.
The plans will be industry funded, and if successful will make it feasible for passengers to watch streamed videos on their mobiles.
70% of passengers should have access to the faster internet by 2019, according to the Department for Transport.
The move was announced at the Conservative party conference in Manchester.
A BT spokeswoman said the company was "disturbed" by an MPs' report that claimed the government's rural broadband scheme was mismanaged and left the internet provider with a near monopoly.
We are disturbed by today's report, which we believe is simply wrong and fails to take on board a point-by-point correction we sent to the committee several weeks ago.
We have been transparent from the start and willing to invest when others have not.
It is therefore mystifying that we are being criticised for accepting onerous terms in exchange for public subsidy - terms which drove others away.
The taxpayer is undoubtedly getting value for money.
BT faces a payback period of around 15 years on its rural broadband investments in spite of the subsidies available.
The DCMS (Department for Culture, Media and Sport) has imposed a rigorous auditing process that ensures every penny is accounted for.
The government's £1.2bn rural superfast broadband scheme has been mismanaged and has left sole provider BT in a "quasi monopolistic position", the chairwoman of the Commons spending watchdog has said.
Margaret Hodge, Public Accounts Committee Chair, said: "Overall, BT is supposed to provide at least 90% coverage in rural areas but it is preventing local authorities from publishing proper information on the areas the company will and will not cover.
"Details of speed and coverage in each local project are also being kept confidential, preventing other suppliers from developing schemes aimed at reaching the remaining 10% of premises and stopping communities and others from identifying alternative ways of providing superfast broadband."
Britain faces dramatic variations in broadband speed within cities, according to a new report, with Birmingham home to the biggest gap between fast and slow.
A study by uSwitch.com found that many consumers are also left in the slow lane in London, Bristol, Northampton and Glasgow.
The difference between fastest and slowest broadband speeds in Birmingham is 89%, while London’s slowest postcode district is EC2Y, which covers Barbican.
Telecoms regulator Ofcom said its auction of 4G airwaves raised £2.3 billion, well below the government’s £3.5 billion target.
The Chancellor George Osborne had mentioned the projected income as part of his claim in the Autumn Statement that borrowing could be reduced.
ITV News Consumer Editor Chris Choi reports:
The Chancellor will be disappointed with the amount raised by the auction, but it is good news that we can now get on with implementing 4G.
Consumers will benefit from the good number of competitors in the 4G market, and we must now encourage investment to get the necessary infrastructure put in place nationally.