diff --git a/optimization202/Modeling_Session_1/exercise_set1.ipynb b/optimization202/Modeling_Session_1/exercise_set1.ipynb
index f486e68..76c3685 100755
--- a/optimization202/Modeling_Session_1/exercise_set1.ipynb
+++ b/optimization202/Modeling_Session_1/exercise_set1.ipynb
@@ -305,7 +305,7 @@
    "source": [
     "### Quadratic expression\n",
     "\n",
-    "In order to produce more widgets, production facilities must run their machines at faster speeds. This consumes more energy and produces more waste at a level that grows with each widget produced. Running their machines costs a production facility $0.01 times the square of the number of widgets produced. Modify the objective function to include this additional production cost. Here is the some code to get you started - it includes the original transportation cost expression that you will be adding to:\n",
+    "In order to produce more widgets, production facilities must run their machines at faster speeds. This consumes more energy and produces more waste at a level that grows with each widget produced. Running their machines costs a production facility $0.01 times the square of the number of widgets produced. Modify the objective function to include this additional production cost. Here is some code to get you started - it includes the original transportation cost expression that you will be adding to:\n",
     "\n",
     "```python\n",
     "m.setObjective(gp.quicksum(transp_cost[p,d]*x[p,d] for p in production for d in distribution) + ..., GRB.MINIMIZE)\n",
diff --git a/optimization202/Modeling_Session_2/exercise_set2.ipynb b/optimization202/Modeling_Session_2/exercise_set2.ipynb
index efc3fba..c1e7644 100644
--- a/optimization202/Modeling_Session_2/exercise_set2.ipynb
+++ b/optimization202/Modeling_Session_2/exercise_set2.ipynb
@@ -139,7 +139,7 @@
     "- [Visualization of PWL](https://docs.gurobi.com/projects/optimizer/en/current/concepts/modeling/objectives.html#piecewise-linear-objectives)\n",
     "\n",
     "### Scenario 1\n",
-    "We have a new cost structure for transporting widgets we make. \n",
+    "We have a new cost structure for transporting the widgets we make. \n",
     "- There will be a flat 0.50 increase for all transportation costs. \n",
     "- If we decide to bulk ship at least half of a production facility's max to any one distribution location, every widget over that half capacity number costs 60% of the new transportation cost. \n",
     "\n",
@@ -525,7 +525,7 @@
    "source": [
     "You now decide that your investments need to be a little more diversified. Add any necessary variables and constraints that will:\n",
     "- Make sure you invest in at least four sectors.\n",
-    "- If an investment is made in a sector, then will need to be at least 10% of the budget."
+    "- If an investment is made in a sector, then it will need to be at least 10% of the budget."
    ]
   },
   {