diff --git a/eo/tutorial/Lesson1/exercise3.cpp b/eo/tutorial/Lesson1/exercise1.3.cpp
similarity index 95%
rename from eo/tutorial/Lesson1/exercise3.cpp
rename to eo/tutorial/Lesson1/exercise1.3.cpp
index 64ca5df01..c0c248c80 100644
--- a/eo/tutorial/Lesson1/exercise3.cpp
+++ b/eo/tutorial/Lesson1/exercise1.3.cpp
@@ -91,18 +91,18 @@ void main_function(int argc, char **argv)
   //                             comment out the eoDetTournament lines
 
   // The well-known roulette 
-  // eoProportional<Indi> select;
+  // eoProportionalSelect<Indi> select;
 
   // could also use stochastic binary tournament selection
   //
   //  const double RATE = 0.75;
-  //  eoStochTournament<Indi> select(RATE);     // RATE in ]0.5,1]
+  //  eoStochTournamentSelect<Indi> select(RATE);     // RATE in ]0.5,1]
   // The robust tournament selection
   const unsigned int T_SIZE = 3; // size for tournament selection
-  eoDetTournament<Indi> select(T_SIZE);       // T_SIZE in [2,POP_SIZE]
+  eoDetTournamentSelect<Indi> select(T_SIZE);       // T_SIZE in [2,POP_SIZE]
 
   // and of course the random selection
-  // eoSelectRandom<Indi> select;
+  // eoRandomSelect<Indi> select;
 
   // The simple GA evolution engine uses generational replacement
   // so no replacement procedure is needed
diff --git a/eo/tutorial/Lesson2/exercise3.cpp b/eo/tutorial/Lesson2/exercise2.3.cpp
similarity index 94%
rename from eo/tutorial/Lesson2/exercise3.cpp
rename to eo/tutorial/Lesson2/exercise2.3.cpp
index daff8e639..489956985 100644
--- a/eo/tutorial/Lesson2/exercise3.cpp
+++ b/eo/tutorial/Lesson2/exercise2.3.cpp
@@ -95,10 +95,13 @@ void main_function(int argc, char **argv)
   ////////////////////////////////////
 // SELECT
   // The robust tournament selection
-  eoDetTournament<Indi> selectOne(T_SIZE);       // T_SIZE in [2,POP_SIZE]
+  eoDetTournamentSelect<Indi> selectOne(T_SIZE);       // T_SIZE in [2,POP_SIZE]
   // solution solution solution solution solution solution solution 
-  // modify the rate in the constructor
-  eoSelectMany<Indi> select(selectOne,2, eo_is_an_integer);//  rate is second arg.
+  // modify the nb offspring / rate in the constructor. 2 ways:
+  // second arg treated as integer
+  eoSelectMany<Indi> select(selectOne,2, eo_is_an_integer);
+  // second arg treated as a rate (default behavior)
+  //  eoSelectMany<Indi> select(selectOne,0.1);
 
 // REPLACE
   // solution solution solution solution solution solution solution 
diff --git a/eo/tutorial/Lesson3/exercise1.cpp b/eo/tutorial/Lesson3/exercise3.1.cpp
similarity index 99%
rename from eo/tutorial/Lesson3/exercise1.cpp
rename to eo/tutorial/Lesson3/exercise3.1.cpp
index a01226ca9..66532bb96 100644
--- a/eo/tutorial/Lesson3/exercise1.cpp
+++ b/eo/tutorial/Lesson3/exercise3.1.cpp
@@ -186,7 +186,7 @@ void main_function(int argc, char **argv)
   ////////////////////////////////////
 // SELECT
   // The robust tournament selection
-  eoDetTournament<Indi> selectOne(tSize);       // tSize in [2,POPSIZE]
+  eoDetTournamentSelect<Indi> selectOne(tSize);       // tSize in [2,POPSIZE]
   // is now encapsulated in a eoSelectPerc (entage)
   eoSelectPerc<Indi> select(selectOne);// by default rate==1