diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
index ca1dfe7f2..51e77d001 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js
@@ -12,7 +12,19 @@ function getAngleType(angle) {
     return "Right angle";
   }
    // Run the tests, work out what Case 2 is testing, and implement the required code here.
+  if (angle < 90) {
+    return "Acute angle";
+  }
    // Then keep going for the other cases, one at a time.
+  if (angle < 180) {
+    return "Obtuse angle";
+  }
+  if (angle === 180) {
+    return "Straight angle";
+  }
+  if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  }
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -50,14 +62,16 @@ assertEquals(acute, "Acute angle");
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
 const obtuse = getAngleType(120);
-// ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(obtuse, "Obtuse angle");
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
-// ====> write your test here, and then add a line to pass the test in the function above
+const straight = getAngleType(180);
+assertEquals(straight, "Straight angle");
 
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
-// ====> write your test here, and then add a line to pass the test in the function above
\ No newline at end of file
+const reflex = getAngleType(250);
+assertEquals(reflex, "Reflex angle");
\ No newline at end of file
diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index a4739af77..d754393cc 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -8,8 +8,14 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
+  // First check: convert negative numbers to positive before comparing
+  numerator = Math.abs(numerator);
+  denominator = Math.abs(denominator);
+  // Second check: numerator should be less than denominator
   if (numerator < denominator) {
     return true;
+  } else {
+    return false;
   }
 }
 
@@ -46,6 +52,7 @@ assertEquals(improperFraction, false);
 // target output: true
 // Explanation: The fraction -4/7 is a proper fraction because the absolute value of the numerator (4) is less than the denominator (7). The function should return true.
 const negativeFraction = isProperFraction(-4, 7);
+assertEquals(negativeFraction, true);
 // ====> complete with your assertion
 
 // Equal Numerator and Denominator check:
@@ -53,7 +60,15 @@ const negativeFraction = isProperFraction(-4, 7);
 // target output: false
 // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
 const equalFraction = isProperFraction(3, 3);
+assertEquals(equalFraction, false);
 // ====> complete with your assertion
 
 // Stretch:
 // What other scenarios could you test for?
+// Zero Numerator check:
+// Input: numerator = 0, denominator = 5
+// target output: true
+// Explanation: The fraction 0/5 is a proper fraction because the numerator (0) is less than the denominator (5). The function should return true.
+const zeroNumerator = isProperFraction(0, 5);
+assertEquals(zeroNumerator, true);
+
diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
index 266525d1b..1ad16e118 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js
@@ -8,9 +8,25 @@
 // write one test at a time, and make it pass, build your solution up methodically
 // just make one change at a time -- don't rush -- programmers are deep and careful thinkers
 function getCardValue(card) {
+  // Extract the rank (all characters except the last one which is the suit)
+  const rank = card.slice(0, -1);
+  
   if (rank === "A") {
     return 11;
   }
+  
+  // Strictly validate rank for number cards (2-10)
+  const validRanks = ["2", "3", "4", "5", "6", "7", "8", "9", "10"];
+  if (validRanks.includes(rank)) {
+    return Number(rank);
+  }
+  
+  if (rank === "J" || rank === "Q" || rank === "K") {
+    return 10;
+  }
+  
+  // If we get here, it's an invalid card - return undefined
+  return undefined;
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -39,19 +55,27 @@ assertEquals(aceofSpades, 11);
 // When the function is called with such a card,
 // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
 const fiveofHearts = getCardValue("5♥");
+assertEquals(fiveofHearts, 5);
 // ====> write your test here, and then add a line to pass the test in the function above
 
 // Handle Face Cards (J, Q, K):
 // Given a card with a rank of "10," "J," "Q," or "K",
 // When the function is called with such a card,
 // Then it should return the value 10, as these cards are worth 10 points each in blackjack.
+const kingofDiamonds = getCardValue("K♦");
+assertEquals(kingofDiamonds, 10);
 
 // Handle Ace (A):
 // Given a card with a rank of "A",
 // When the function is called with an Ace,
 // Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack.
+const aceofClubs = getCardValue("A♣");
+assertEquals(aceofClubs, 11);
 
 // Handle Invalid Cards:
 // Given a card with an invalid rank (neither a number nor a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+const invalidCard = getCardValue("1♣");
+assertEquals(invalidCard, undefined);
+
diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
index 4a92a3e82..bd32a61f9 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
@@ -12,15 +12,27 @@ test("should identify right angle (90°)", () => {
 // Case 2: Identify Acute Angles:
 // When the angle is less than 90 degrees,
 // Then the function should return "Acute angle"
+test("should identify acute angle (<90°)", () => {
+  expect(getAngleType(45)).toEqual("Acute angle");
+});
 
 // Case 3: Identify Obtuse Angles:
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
+test("should identify obtuse angle (>90° and <180°)", () => {
+  expect(getAngleType(135)).toEqual("Obtuse angle");
+});
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
+test("should identify straight angle (180°)", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
+test("should identify reflex angle (>180° and <360°)", () => {
+  expect(getAngleType(270)).toEqual("Reflex angle");
+});
diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
index caf08d15b..22cb98606 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
@@ -7,7 +7,27 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
+test("should return false for an improper fraction", () => {  
+  expect(isProperFraction(5, 3)).toEqual(false);
+});
+
+
+// Case 3: Function call with negative parameters
+// Negative proper fraction: numerator absolute value less than denominator
+test("should return true for negative proper fraction", () => {
+  expect(isProperFraction(-2, 3)).toEqual(true); // -2/3 is proper
+  expect(isProperFraction(2, -3)).toEqual(true); // 2/-3 is proper
+  expect(isProperFraction(-2, -3)).toEqual(true); // -2/-3 is proper
+});
 
-// Case 3: Identify Negative Fractions:
+// Negative improper fraction: numerator absolute value greater than or equal to denominator
+test("should return false for negative improper fraction", () => {
+  expect(isProperFraction(-5, 3)).toEqual(false); // -5/3 is improper
+  expect(isProperFraction(5, -3)).toEqual(false); // 5/-3 is improper
+  expect(isProperFraction(-5, -3)).toEqual(false); // -5/-3 is improper
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false for equal numerator and denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});
diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index 04418ff72..d92aece50 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -8,6 +8,59 @@ test("should return 11 for Ace of Spades", () => {
 });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return numeric value for number cards (2-10)", () => {
+  const fiveofHearts = getCardValue("5♥");
+  expect(fiveofHearts).toEqual(5);
+});     
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return 10 for face cards (J, Q, K)", () => {
+  const jackOfDiamonds = getCardValue("J♦");
+  const queenOfClubs = getCardValue("Q♣");
+  const kingOfHearts = getCardValue("K♥");
+  expect(jackOfDiamonds).toEqual(10);
+  expect(queenOfClubs).toEqual(10);
+  expect(kingOfHearts).toEqual(10);
+});
+
 // Case 4: Handle Ace (A):
+test("should return 11 for Ace (A)", () => {
+  const aceOfSpades = getCardValue("A♠");
+  expect(aceOfSpades).toEqual(11);
+});
+
 // Case 5: Handle Invalid Cards:
+test("should return undefined for invalid cards", () => {
+  const invalidCard = getCardValue("1♠");
+  expect(invalidCard).toEqual(undefined);
+});
+
+test("should return correct value for all number cards 2-10", () => {
+  expect(getCardValue("2♥")).toEqual(2);
+  expect(getCardValue("3♣")).toEqual(3);
+  expect(getCardValue("4♦")).toEqual(4);
+  expect(getCardValue("5♠")).toEqual(5);
+  expect(getCardValue("6♥")).toEqual(6);
+  expect(getCardValue("7♣")).toEqual(7);
+  expect(getCardValue("8♦")).toEqual(8);
+  expect(getCardValue("9♠")).toEqual(9);
+  expect(getCardValue("10♥")).toEqual(10);
+});
+
+test("should handle numeric-literal edge cases", () => {
+  expect(getCardValue("0x02♠")).toBeUndefined(); 
+  expect(getCardValue("2.1♠")).toBeUndefined();      
+  expect(getCardValue("0002♠")).toBeUndefined();     
+});
+
+test("should return 10 for all face cards", () => {
+  expect(getCardValue("J♠")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("K♣")).toEqual(10);
+});
+
+test("should return 11 for all Aces", () => {
+  expect(getCardValue("A♠")).toEqual(11);
+  expect(getCardValue("A♥")).toEqual(11);
+  expect(getCardValue("A♦")).toEqual(11);
+  expect(getCardValue("A♣")).toEqual(11);
+});
\ No newline at end of file
diff --git a/Sprint-3/2-practice-tdd/count.js b/Sprint-3/2-practice-tdd/count.js
index 95b6ebb7d..8236f4f0b 100644
--- a/Sprint-3/2-practice-tdd/count.js
+++ b/Sprint-3/2-practice-tdd/count.js
@@ -1,5 +1,15 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let count = 0;
+  
+  // Loop through each character in the string
+  for (let i = 0; i < stringOfCharacters.length; i++) {
+    // If the current character matches the character we're looking for
+    if (stringOfCharacters[i] === findCharacter) {
+      count++;
+    }
+  }
+  
+  return count;
 }
 
 module.exports = countChar;
diff --git a/Sprint-3/2-practice-tdd/count.test.js b/Sprint-3/2-practice-tdd/count.test.js
index 42baf4b4b..79091d1cd 100644
--- a/Sprint-3/2-practice-tdd/count.test.js
+++ b/Sprint-3/2-practice-tdd/count.test.js
@@ -22,3 +22,9 @@ test("should count multiple occurrences of a character", () => {
 // And a character char that does not exist within the case-sensitive str,
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of the char were found in the case-sensitive str.
+test("should return 0 for no occurrences", () => {
+  const str = "hello";
+  const char = "x";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
\ No newline at end of file
diff --git a/Sprint-3/2-practice-tdd/get-ordinal-number.js b/Sprint-3/2-practice-tdd/get-ordinal-number.js
index f95d71db1..689999a21 100644
--- a/Sprint-3/2-practice-tdd/get-ordinal-number.js
+++ b/Sprint-3/2-practice-tdd/get-ordinal-number.js
@@ -1,5 +1,21 @@
 function getOrdinalNumber(num) {
-  return "1st";
+  // Handle special cases for teens (11th, 12th, 13th)
+  if (num % 100 >= 11 && num % 100 <= 13) {
+    return num + "th";
+  }
+  
+  // Handle based on last digit
+  const lastDigit = num % 10;
+  
+  if (lastDigit === 1) {
+    return num + "st";
+  } else if (lastDigit === 2) {
+    return num + "nd";
+  } else if (lastDigit === 3) {
+    return num + "rd";
+  } else {
+    return num + "th";
+  }
 }
 
 module.exports = getOrdinalNumber;
diff --git a/Sprint-3/2-practice-tdd/get-ordinal-number.test.js b/Sprint-3/2-practice-tdd/get-ordinal-number.test.js
index dfe4b6091..7313637d9 100644
--- a/Sprint-3/2-practice-tdd/get-ordinal-number.test.js
+++ b/Sprint-3/2-practice-tdd/get-ordinal-number.test.js
@@ -1,13 +1,44 @@
-const getOrdinalNumber = require("./get-ordinal-number");
-// In this week's prep, we started implementing getOrdinalNumber
 
-// continue testing and implementing getOrdinalNumber for additional cases
-// Write your tests using Jest - remember to run your tests often for continual feedback
+const getOrdinalNumber = require("./get-ordinal-number");
 
-// Case 1: Identify the ordinal number for 1
-// When the number is 1,
-// Then the function should return "1st"
+// To ensure thorough testing, we need broad scenario coverage. Listing individual values, however, can quickly lead to an unmanageable number of test cases.
+// Instead of writing tests for individual numbers, we group all possible input values into meaningful categories and select representative samples from each category to test. This approach improves coverage and makes our tests easier to maintain.
 
-test("should return '1st' for 1", () => {
+// Numbers ending in 1 (except those ending in 11): should append 'st'
+test("append 'st' to numbers ending in 1, except those ending in 11", () => {
   expect(getOrdinalNumber(1)).toEqual("1st");
+  expect(getOrdinalNumber(21)).toEqual("21st");
+  expect(getOrdinalNumber(101)).toEqual("101st");
+});
+
+// Numbers ending in 2 (except those ending in 12): should append 'nd'
+test("append 'nd' to numbers ending in 2, except those ending in 12", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+  expect(getOrdinalNumber(22)).toEqual("22nd");
+  expect(getOrdinalNumber(132)).toEqual("132nd");
+});
+
+// Numbers ending in 3 (except those ending in 13): should append 'rd'
+test("append 'rd' to numbers ending in 3, except those ending in 13", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+  expect(getOrdinalNumber(23)).toEqual("23rd");
+  expect(getOrdinalNumber(103)).toEqual("103rd");
 });
+
+// Numbers ending in 11, 12, 13: should append 'th'
+test("append 'th' to numbers ending in 11, 12, 13", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+  expect(getOrdinalNumber(12)).toEqual("12th");
+  expect(getOrdinalNumber(13)).toEqual("13th");
+  expect(getOrdinalNumber(111)).toEqual("111th");
+  expect(getOrdinalNumber(112)).toEqual("112th");
+  expect(getOrdinalNumber(113)).toEqual("113th");
+});
+
+// ... to numbers ending in 0, 4-9.
+test("append 'th' to all other numbers", () => {
+  expect(getOrdinalNumber(4)).toEqual("4th");
+  expect(getOrdinalNumber(10)).toEqual("10th");
+  expect(getOrdinalNumber(0)).toEqual("0th");
+});
+
diff --git a/Sprint-3/2-practice-tdd/repeat.js b/Sprint-3/2-practice-tdd/repeat.js
index 00e60d7f3..cf4b2325d 100644
--- a/Sprint-3/2-practice-tdd/repeat.js
+++ b/Sprint-3/2-practice-tdd/repeat.js
@@ -1,5 +1,20 @@
-function repeat() {
-  return "hellohellohello";
+function repeat(str, count) {
+  // Handle edge cases
+  if (count < 0) {
+    throw new Error("Count cannot be negative");
+  }
+  
+  if (count === 0) {
+    return "";
+  }
+  
+  // Build the repeated string
+  let result = "";
+  for (let i = 0; i < count; i++) {
+    result += str;
+  }
+  
+  return result;
 }
 
 module.exports = repeat;
diff --git a/Sprint-3/2-practice-tdd/repeat.test.js b/Sprint-3/2-practice-tdd/repeat.test.js
index 34097b09c..45cb41134 100644
--- a/Sprint-3/2-practice-tdd/repeat.test.js
+++ b/Sprint-3/2-practice-tdd/repeat.test.js
@@ -19,14 +19,31 @@ test("should repeat the string count times", () => {
 // case: handle Count of 1:
 // Given a target string str and a count equal to 1,
 // When the repeat function is called with these inputs,
-// Then it should return the original str without repetition, ensuring that a count of 1 results in no repetition.
+// Then it should return the original str without repetition, ensuring that a count of 1 results in no repetition
+test("should return the original string for count of 1", () => {
+  const str = "hello";
+  const count = 1;
+  const repeatedStr = repeat(str, count);
+  expect(repeatedStr).toEqual("hello");
+});
 
 // case: Handle Count of 0:
 // Given a target string str and a count equal to 0,
 // When the repeat function is called with these inputs,
 // Then it should return an empty string, ensuring that a count of 0 results in an empty output.
+test("should return an empty string for count of 0", () => {
+  const str = "hello";
+  const count = 0;
+  const repeatedStr = repeat(str, count);
+  expect(repeatedStr).toEqual("");
+});
 
 // case: Negative Count:
 // Given a target string str and a negative integer count,
 // When the repeat function is called with these inputs,
 // Then it should throw an error or return an appropriate error message, as negative counts are not valid.
+test("should throw an error for negative count", () => {
+  const str = "hello";
+  const count = -2;
+  expect(() => repeat(str, count)).toThrow("Count cannot be negative");
+});
\ No newline at end of file