Richard Hilary, 66, is accused of committing 15 offences while he was a teacher at the Wavell School in Farnborough.
The alleged victims were under the age of 16 at the time.
Mr Hilary, of Northend Lane, Droxford, has been bailed to appear before Basingstoke magistrates on 2 May.

Postal slips in Ceredigion, Preseli Pembrokeshire and Carmarthen West and South Pembrokeshire have been re-printed on tan-coloured paper to correct an error in the instructions.
Voters must discard the grey slips.
A Green Party source said its "Vote Green on Grey this May" leaflets and video were now useless as a result.
The party had printed leaflets and created a video for social media.
The source said: "As you can imagine, we've been really shocked by this muck up. You've seen the film we've made, fortunately we haven't begun sharing it yet. It's now useless.
"We've also had a new batch of Green on Grey leaflets printed. At least we can use them in other parts of the region."
Tom Marshall, the party's campaign manager for Mid and West Wales said: "We are extremely disappointed to hear of the error with the ballot papers.  'Vote Green on Tan' just doesn't have the same ring about it."
Regional returning officer Mark James said: "It appears that a computer error by printers who prepare papers for Ceredigion and Pembrokeshire led to an unfortunate misprint."

Manning, 39, has described the allegations, made by broadcaster Al Jazeera, as "complete garbage".
Its source - Texas-based pharmacist Charlie Sly - has since recanted.
The allegations surfaced in an Al Jazeera report that said Manning's wife received deliveries of HGH, which is banned by the NFL, at their home.
At the time, Manning was recovering from neck surgery suffered during his spell with the Indianapolis Colts.
The NFL does not expect to reach a verdict before Manning's Denver side play the Carolina Panthers in the Super Bowl on 7 February.
Manning holds the records for most passing yards and touchdown passes and has been voted the NFL's most valuable player on a record five occasions.
The 39-year-old been plagued by injury and there is speculation that the Super Bowl - his fourth appearance in American football's showpiece event - could be the final game in his illustrious career.

In a rain-reduced game of 46 overs per side, a 93-ball unbeaten 101 from Adam Hose and Jim Allenby's 90 off 110 balls helped Somerset post 294-6.
Chasing a revised target of 297, the hosts slipped to 62-4 with Craig Overton (2-39) amongst the wickets.
Jack Taylor's explosive 68 stemmed the flow of wickets, but Gloucestershire fell short and were all out for 215.
Gloucestershire have won only two of their six matches and their hopes of qualifying for the knockout stages are hanging by a thread.
Somerset's total owed much to the fourth-wicket partnership of 123 between Hose and Allenby.
The home side never got going in reply and lost Phil Mustard to the first ball of the second over.
Taylor's 50-ball knock gave Gloucestershire some momentum and contained three sixes and eight fours, but once he fell to Jamie Overton (3-53), the innings fell away.
Max Waller finished with 3-37 as Somerset moved onto 10 points from their six matches.
A man has been charged with sexually attacking girls while he worked at a secondary school in Hampshire in the late 1970s and early 1980s.
[NEXT_CONCEPT]
The Green Party in Wales has been forced to abandon its "Vote Green on Grey" assembly campaign after an error meant postal slips will not be grey.
[NEXT_CONCEPT]
The NFL has opened an investigation into allegations that Denver Broncos quarterback Peyton Manning had human growth hormone sent to his house.
[NEXT_CONCEPT]
One-Day Cup South Group leaders Somerset beat Gloucestershire by 81 runs to secure a fifth win in six.