diff --git a/lostplaces/lostplaces_app/tests/models/test_place_model.py b/lostplaces/lostplaces_app/tests/models/test_place_model.py
index 9b19df6..4f719cf 100644
--- a/lostplaces/lostplaces_app/tests/models/test_place_model.py
+++ b/lostplaces/lostplaces_app/tests/models/test_place_model.py
@@ -23,9 +23,16 @@ def mock_place():
     return place
 
 class ModelTest:
+    '''
+    Base class for Lostplaces models
+    '''
     model_name = None
 
     def _test_field(self, field_name, field_class):
+        '''
+        Tests if a field exists under the given name and
+        if the field is of the right type
+        '''
         field = self.place._meta.get_field(field_name)
         self.assertTrue(
             field,
@@ -45,6 +52,10 @@ class ModelTest:
 
 
     def _test_char_field(self, field_name, min_length, max_length):
+        '''
+        Tests if the given field is a char field and if its max_length
+        is in min_length and max_legth
+        '''
         field = self._test_field(field_name, models.CharField)
         self.assertEqual(
             type(field), models.CharField, 
@@ -64,6 +75,14 @@ class ModelTest:
         )
     
     def _test_float_field(self, field_name, min_value=None, max_value=None):
+        '''
+        Tests if the field is a floatfield. If min_value and/or max_value are passed,
+        the validators of the field are also checked. The validator list of the field should
+        look like 
+        [MinValueValidator, MayValueValidator], if both values are passed,
+        [MinValueValidator] if only min_value is passed,
+        [MaxValueValidator] if only max_value is passed
+        '''
         field = self._test_field(field_name, models.FloatField)
         if min_value:
             self.assertTrue(
@@ -143,6 +162,10 @@ class PlaceTestCase(ModelTest, TestSubmittable, TestCase):
         self._test_field('tags', TaggableManager)
 
     def test_average_latlon(self):
+        '''
+        Tests the average latitude/longitude calculation of a list
+        of 10 places
+        '''
         place_list = []
         for i in range(10):
             place = mock_place()
@@ -163,6 +186,10 @@ class PlaceTestCase(ModelTest, TestSubmittable, TestCase):
         )
 
     def test_average_latlon_one_place(self):
+                '''
+        Tests the average latitude/longitude calculation of a list
+        of one place
+        '''
         place = mock_place()
         avg_latlon = Place.average_latlon([place])
         self.assertEqual(avg_latlon[0], place.latitude,
@@ -177,6 +204,10 @@ class PlaceTestCase(ModelTest, TestSubmittable, TestCase):
         )
 
     def test_average_latlon_no_places(self):
+        '''
+        Tests the average latitude/longitude calculation of 
+        an empty list
+        '''
         avg_latlon = Place.average_latlon([])
         self.assertEqual(avg_latlon[0], 0,
             msg='%s: (no places) average latitude missmatch' % (