@@ -10,7 +10,7 @@ Preface
 
 CSAwesome is a free AP CS A curriculum that was created in 2019 by adapting the AP CS A Java Review e-book written by Dr. Barbara Ericson, while she was a senior research scientist at Georgia Tech, currently Assistant Professor of Information at University of Michigan. She published this book using a modified BSD license to encourage people to use it, change it, and modify it for their own purposes. 
 
-CSAwesome is an official College Board CS A curriculum and PD provider as of 2020. Dr. Beryl Hoffman, Associate Professor of Computer Science at Elms College, MA, created and adapted the CSAwesome curriculum to follow the College Board CS A 2019 guidelines with the support of a 2019 Google CS-ER grant and the Mobile CSP project (https://www.mobile-csp.org).  Special thanks to Barb Ericson, Beth Simon, John Figliulo, Pauline Lake, Jennifer Rosato, Kim Evelti, Becky Stacey, Art Lopez, and Kyle Gillette for feedback, edits, and ideas. In the summer 2020, we are very grateful to CSA teacher extraordinaire Kate McDonnell who created JUnit test helper code for our Java server, and many volunteers who are helping to add junit tests to each active code to make them auto-gradable. Our hopes are that CSP teachers and students can use this interactive book to help transition from AP CSP to AP CS A.
+CSAwesome is an official College Board CS A curriculum and PD provider as of 2020. Dr. Beryl Hoffman, Associate Professor of Computer Science at Elms College, MA, created and adapted the CSAwesome curriculum to follow the College Board CS A 2019 guidelines with the support of a 2019 Google CS-ER grant and the Mobile CSP project (https://www.mobile-csp.org).  Special thanks to Barb Ericson, Beth Simon, John Figliulo, Pauline Lake, Jennifer Rosato, Kim Evelti, Becky Stacey, Art Lopez, and Kyle Gillette for feedback, edits, and ideas. In the summer 2020, we are very grateful to CSA teacher extraordinaire Kate McDonnell who created JUnit test code suite for our Java server, and many volunteers including Pat Clark, Emma Brown, Emma Pinnell, who are helping to add junit tests to each active code to make them auto-gradable. Our hopes are that CSP teachers and students can use this interactive book to help transition from AP CSP to AP CS A.
 
 .. |form| raw:: html
 
 
@@ -66,7 +66,7 @@ Data Types
 
 There are two types of variables in Java: **primitive variables** that hold primitive types and **object variables** that hold a reference to an object of a class.  A reference is a way to find the object (like a UPS tracking number helps you find your package).  The primitive types on the Advanced Placement Computer Science A exam are: 
 
-    -  int - which store integers (whole numbers like 3, -76, 20393) 
+    -  int - which store integers (numbers like 3, -76, 20393) 
 
     -  double - which store floating point numbers (decimal numbers like 6.3 -0.9, and 60293.93032)
 
@@ -394,7 +394,7 @@ The equal sign here ``=`` doesn't mean the same as it does in a mathematical equ
    What type should you use for a number of tickets? 
 
    -    :^\s*int$: Correct. You can't buy half a ticket so this will be an integer.
-        :.*: Use a type that representes whole numbers like 1, 2, 3, etc
+        :.*: Use a type that represents whole numbers like 1, 2, 3, etc.
 
 
 **Mixed up Code Problems**
@@ -612,7 +612,7 @@ Summary
   
   
 - **Data types** can be categorized as either primitive type (like int) or reference type (like String).
-- The three primitive data types used in this course are **int** (whole numbers), **double** (decimal numbers), and **boolean** (true or false).
+- The three primitive data types used in this course are **int** (integer numbers), **double** (decimal numbers), and **boolean** (true or false).
 - Each variable has associated memory that is used to hold its value.
 - The memory associated with a variable of a primitive type holds an actual primitive value.
 - When a variable is declared final, its value cannot be changed once it is initialized.  
 
@@ -128,7 +128,7 @@ For example, int values are stored in 4 bytes of memory. There is an Integer.MAX
    :language: java
    :autograde: unittest
 
-   Try the code below to see two integer overflow errors for a too large positive and negative number. An int cannot hold that high a value! Fix the integer overflow error by deleting the last 0 in the numbers.
+   Try the code below to see two integer overflow errors for a positive and negative number. An int cannot hold that many digits! Fix the integer overflow error by deleting the last 0 in the numbers.
    ~~~~
    public class TestOverflow
    {
Original file line number	Diff line number	Diff line change
`@@ -128,7 +128,7 @@ For example, int values are stored in 4 bytes of memory. There is an Integer.MAX`
`128`	`128`	`:language: java`
`129`	`129`	`:autograde: unittest`
`130`	`130`
`131`		`- Try the code below to see two integer overflow errors for a too large positive and negative number. An int cannot hold that high a value! Fix the integer overflow error by deleting the last 0 in the numbers.`
	`131`	`+ Try the code below to see two integer overflow errors for a positive and negative number. An int cannot hold that many digits! Fix the integer overflow error by deleting the last 0 in the numbers.`
`132`	`132`	`~~~~`
`133`	`133`	`public class TestOverflow`
`134`	`134`	`{`