diff --git a/02_production.ipynb b/02_production.ipynb
index 9b45cea..f8c7940 100644
--- a/02_production.ipynb
+++ b/02_production.ipynb
@@ -734,7 +734,7 @@
     }
    ],
    "source": [
-    "dls.valid.show_batch(max_n=4, rows=1)"
+    "dls.valid.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -765,7 +765,7 @@
    "source": [
     "bears = bears.new(item_tfms=Resize(128, ResizeMethod.Squish))\n",
     "dls = bears.dataloaders(path)\n",
-    "dls.valid.show_batch(max_n=4, rows=1)"
+    "dls.valid.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -789,7 +789,7 @@
    "source": [
     "bears = bears.new(item_tfms=Resize(128, ResizeMethod.Pad, pad_mode='zeros'))\n",
     "dls = bears.dataloaders(path)\n",
-    "dls.valid.show_batch(max_n=4, rows=1)"
+    "dls.valid.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -825,7 +825,7 @@
     "bears = bears.new(item_tfms=RandomResizedCrop(128, min_scale=0.3))\n",
     "dls = bears.dataloaders(path)\n",
     "dls.train.get_idxs = lambda: Inf.ones\n",
-    "dls.train.show_batch(max_n=4, rows=1)"
+    "dls.train.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -880,7 +880,7 @@
     "bears = bears.new(item_tfms=Resize(128), batch_tfms=aug_transforms(mult=2))\n",
     "dls = bears.dataloaders(path)\n",
     "dls.train.get_idxs = lambda: Inf.ones\n",
-    "dls.train.show_batch(max_n=8, rows=2)"
+    "dls.train.show_batch(max_n=8, nrows=2)"
    ]
   },
   {
@@ -1089,7 +1089,7 @@
     }
    ],
    "source": [
-    "interp.plot_top_losses(5, rows=1)"
+    "interp.plot_top_losses(5, nrows=1)"
    ]
   },
   {
@@ -1929,10 +1929,25 @@
   }
  ],
  "metadata": {
+  "jupytext": {
+   "split_at_heading": true
+  },
   "kernelspec": {
    "display_name": "Python 3",
    "language": "python",
    "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,
diff --git a/05_pet_breeds.ipynb b/05_pet_breeds.ipynb
index b45c658..ce632ef 100644
--- a/05_pet_breeds.ipynb
+++ b/05_pet_breeds.ipynb
@@ -362,7 +362,7 @@
     }
    ],
    "source": [
-    "dls.show_batch(rows=1, cols=3)"
+    "dls.show_batch(nrows=1, ncols=3)"
    ]
   },
   {
@@ -2525,10 +2525,25 @@
   }
  ],
  "metadata": {
+  "jupytext": {
+   "split_at_heading": true
+  },
   "kernelspec": {
    "display_name": "Python 3",
    "language": "python",
    "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,
diff --git a/06_multicat.ipynb b/06_multicat.ipynb
index 927d92c..1a77993 100644
--- a/06_multicat.ipynb
+++ b/06_multicat.ipynb
@@ -653,7 +653,7 @@
     }
    ],
    "source": [
-    "dls.show_batch(rows=1, cols=3)"
+    "dls.show_batch(nrows=1, ncols=3)"
    ]
   },
   {
diff --git a/clean/02_production.ipynb b/clean/02_production.ipynb
index 0f6da4d..a544e53 100644
--- a/clean/02_production.ipynb
+++ b/clean/02_production.ipynb
@@ -332,7 +332,7 @@
     }
    ],
    "source": [
-    "dls.valid.show_batch(max_n=4, rows=1)"
+    "dls.valid.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -356,7 +356,7 @@
    "source": [
     "bears = bears.new(item_tfms=Resize(128, ResizeMethod.Squish))\n",
     "dls = bears.dataloaders(path)\n",
-    "dls.valid.show_batch(max_n=4, rows=1)"
+    "dls.valid.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -380,7 +380,7 @@
    "source": [
     "bears = bears.new(item_tfms=Resize(128, ResizeMethod.Pad, pad_mode='zeros'))\n",
     "dls = bears.dataloaders(path)\n",
-    "dls.valid.show_batch(max_n=4, rows=1)"
+    "dls.valid.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -405,7 +405,7 @@
     "bears = bears.new(item_tfms=RandomResizedCrop(128, min_scale=0.3))\n",
     "dls = bears.dataloaders(path)\n",
     "dls.train.get_idxs = lambda: Inf.ones\n",
-    "dls.train.show_batch(max_n=4, rows=1)"
+    "dls.train.show_batch(max_n=4, nrows=1)"
    ]
   },
   {
@@ -437,7 +437,7 @@
     "bears = bears.new(item_tfms=Resize(128), batch_tfms=aug_transforms(mult=2))\n",
     "dls = bears.dataloaders(path)\n",
     "dls.train.get_idxs = lambda: Inf.ones\n",
-    "dls.train.show_batch(max_n=8, rows=2)"
+    "dls.train.show_batch(max_n=8, nrows=2)"
    ]
   },
   {
@@ -605,7 +605,7 @@
     }
    ],
    "source": [
-    "interp.plot_top_losses(5, rows=1)"
+    "interp.plot_top_losses(5, nrows=1)"
    ]
   },
   {
@@ -1046,10 +1046,25 @@
   }
  ],
  "metadata": {
+  "jupytext": {
+   "split_at_heading": true
+  },
   "kernelspec": {
    "display_name": "Python 3",
    "language": "python",
    "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,
diff --git a/clean/05_pet_breeds.ipynb b/clean/05_pet_breeds.ipynb
index 4eae173..43afa87 100644
--- a/clean/05_pet_breeds.ipynb
+++ b/clean/05_pet_breeds.ipynb
@@ -204,7 +204,7 @@
     }
    ],
    "source": [
-    "dls.show_batch(rows=1, cols=3)"
+    "dls.show_batch(nrows=1, ncols=3)"
    ]
   },
   {
@@ -1743,10 +1743,25 @@
   }
  ],
  "metadata": {
+  "jupytext": {
+   "split_at_heading": true
+  },
   "kernelspec": {
    "display_name": "Python 3",
    "language": "python",
    "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,
diff --git a/clean/06_multicat.ipynb b/clean/06_multicat.ipynb
index 48a6079..3f1012c 100644
--- a/clean/06_multicat.ipynb
+++ b/clean/06_multicat.ipynb
@@ -439,7 +439,7 @@
     }
    ],
    "source": [
-    "dls.show_batch(rows=1, cols=3)"
+    "dls.show_batch(nrows=1, ncols=3)"
    ]
   },
   {