Thousands of people marched through the streets gucci handbags Paris on Monday evening in memory of the victims.
All schools in France will observe a minute's silence on Tuesday morning at 11:00 (10:00 GMT).
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BBC News, Paris
It is now established beyond doubt that the three incidents in Toulouse and Montauban were the work of the same man. He used the same gun, rode the same 500cc Yamaha scooter, and acted with the same cold-blooded brutality.
But why the widely differing choice of targets: soldiers and Jewish children? One theory is that the man is a deranged far-rightwinger. It is noted that the three dead soldiers were of North African origin, and a fourth who was injured is from the French Caribbean.
The killer has a clear affinity with guns. Could he be a neo-Nazi type - maybe an ex-soldier or a member of the criminal underworld - with a hatred of all minorities, Jews and Muslims?
Some have gone further - indirectly pointing the finger at President Sarkozy for recently raising sensitive issues such as halal and kosher meat in the run-up to the presidential election. This tactic, they say, gives credibility to the far-right and 'delegitimises' the Muslim and Jewish communities.
The problem with this theory is that it is not yet established that the killer deliberately targeted Muslim soldiers.
Who was behind Toulouse shootings?
Investigations are pursuing two main lines of inquiry - an Islamist motive or the far right.
President Nicolas Sarkozy, who flew to Toulouse after the attack, described it as a "national tragedy". He said a single person had carried out all three attacks and that an "anti-Semitic motive" seemed obvious.
Guards are to be posted outside all faith-based louis vuitton scarves schools, as well as all Jewish and Muslim religious buildings, he said.
Mr Sarkozy has also placed south-west France on the highest level of terrorism alert.
A teacher and three children were shot dead at the Ozar Hatorah school in Toulouse, and a teenage boy was seriously injured.
The shootings took place as parents were taking their children to the school on Monday.
"This man alighted from his moped and, as he was outside the school, he shot at everybody who was near him, children or adults," local prosecutor Michel Valet told journalists.
The scooter - a black Yamaha - was stolen in Toulouse five days before the first shooting. Its number plate was picked up by closed-circuit TV cameras at the school, police sources said.
The dead were Jonathan Sandler, a 30-year-old rabbi and teacher of religion originally from Jerusalem, and his two sons, aged three and six.
The fourth person killed was a seven-year-old girl, Myriam Monsonego, daughter of the head teacher. She died in her father's arms.
Mourners in Toulouse gathered at the school for an overnight vigil, while in Paris, thousands took part in a silent march to show their sympathy for the victims. There was also a remembrance service at the Nazareth synagogue in the French capital.
All the dead were dual French-Israeli nationals and will be buried in Israel, the Israeli foreign ministry said.
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Attacks in south-west France
11 March: Off-duty airborne sergeant shot dead in Toulouse while waiting to see man about selling his motorbike
15 March: Two paratroopers shot dead and a third seriously injured while waiting at a cash machine in Montauban
19 March: Three children and a teacher shot dead, and a youth injured, at a Jewish school in Toulouse
French shootings: What we know
A 17-year-old boy was seriously hurt. Initially, the killer used a 9mm gun, but when it jammed, he switched to a .45 calibre weapon.
Police say the .45 was the same gun used to kill three soldiers in two separate shootings in Toulouse and nearby Montauban last week. All three were of North African or Caribbean origin.
The BBC's Hugh Schofield in Paris says not since the early 1980s have there been lethal attacks like this in France on Jewish targets. And even then, children were never the primary victims, he says.
All the candidates in the French presidential election have suspended campaigning.
Mr Sarkozy said his campaign would remain suspended until Wednesday at the earliest, when he is due to attend the soldiers' funerals.
As well as Mr Sarkozy, opposition Socialist candidate Francois Hollande visited Toulouse to offer his condolences. Far-right candidate Marine Le Pen called on the black gucci belt authorities to do everything to prevent another such attack.