To plant a seed: What a surprising small seed dad showed Christopher this morning. So tiny but nevertheless full... bit.ly/txLR1X

Advent calendar: Another one month in the expectation of Christmas ! In order to help Christopher to wait, dad b... bit.ly/tjtID1

To visit an airport: Today, dad is going to visit an airport with Christopher, in order to show him the ballet o... bit.ly/rVSoLQ

To see the infinite: The section of wall in front of our apartment entrance is nearly completely covered with a ... bit.ly/rK8hHT

Alphabet letters: This morning, Christopher has difficulty in waking up. Once out of his bed, he stretches his a... bit.ly/sGm6Y4

Perpendicular rights: Christopher really likes war weapons. Dad bought a sword and a shield to his knight. Armed... bit.ly/tLAxom

To climb a double spiral staircase: When visiting Chambord castle in France, dad suggests Christopher going up t... bit.ly/xaCP6w

To eat fractals: What is this strange green vegetable mum brought from the market today ? It is a Romanesco cabb... bit.ly/zSzLgt

To observe the moon: Christopher often observes the moon with mum or dad, when the sky is not clouded over. Toda... bit.ly/xRwKJm

To measure the temperature: Winter is at our door. Mum wants to make Christopher discover temperature variations... bit.ly/ymWuxU

To discover classical music: Mum switches on the hi-fi system to listen to the 4th movement of the New World sym... bit.ly/weVCsR

To sink or to float ?: Mum fills the bath for Christopher to see if an object plunged into water sinks or floats... bit.ly/z35vnO

To learn to swim with baby swimming: Dad and Christopher are going to participate in their first session of baby... bit.ly/y9mEo6

To learn to count while jumping: Christopher recently learnt to jump : he bends his legs then springs skywards b... bit.ly/AdzzMd

To collect dead leaves: The forest slowly drapes itself with autumn colors. Dead leaves which fall from trees wi... bit.ly/VqjUVl