BBP Activity 3: Python Operators Exercises

:video_game: Activity Time!

Time needed: 30-40 minutes

What you'll do: Become a math wizard with Python! You'll create three cool programs that calculate ages, keep score in games, and perform amazing mathematical operations. Get ready to make Python do the math for you! :emoji::sparkles:

Before You Start:

:white_check_mark: You've completed the Operators lesson
:white_check_mark: You understand basic math operations (+, -, *, /)
:white_check_mark: You know how to create variables in Python
:white_check_mark: You're ready to make Python calculate things
:white_check_mark: Remember: Computers are amazing at math!

Setup Your Workspace :rocket:

Step One: Access EduBlocks

Go to: https://app.edublocks.org/login and sign in with your Google account

Step 2: Create Your Projects

• Click the "Editor" icon for new projects
• Click the "Projects" icon to continue previous work

Step 3: For Each Exercise:

1. Select Python 3 mode
2. Name your project clearly:
   • "Age Calculator" for Exercise 1
   • "Score Keeper" for Exercise 2
   • "Math Operations" for Exercise 3
3. Click "Start Coding" then "Save"

:bulb: :emoji: Save Smart: Hit save every 5 minutes! Your future self will thank you!

Your Three Coding Challenges! :dart:

Exercise One: Age Calculator :emoji:

Your Mission: Create a program that calculates how old someone is!

Step-by-Step Instructions:

1. Drag the input block (found in Basic -> Input)
   • Type the question: "What year were you born?"
   • Store the answer in a variable called year_born
   • Don't forget to convert it to an integer using the int() block!
2. Create a variable for current year
   • Drag a variable block from Variables
   • Name it year and set it to 2024 (or the current year)
3. Time for math magic! :sparkles:
   • Drag a new variable block called age
   • Use the subtraction operator block (-)
   • Connect: age = year - year_born
   • This calculates the person's age!
4. Display the result
   • Drag a print block
   • Use the join block to combine: "Your age is " + str(age)
   • Remember to convert age to a string first!

tip :dart: Test it out: Try different birth years to see if your calculator works correctly!

Common mistake: Forgot to convert to integer? Your program might crash! Always use the int() block when working with numbers from input.

Exercise 2: Score Keeper :video_game:

Your Mission: Build a game score tracker that adds points!

Step-by-Step Instructions:

1. Create your starting score

   • Drag a variable block from Variables menu
   • Name it score and set value to 100
   • Add a print block: "Starting score: " + str(score)

2. First power-up! (+300 points) :dart:

   • Drag the += operator block (it's like a shortcut!)
   • Connect: score += 300 (this adds 300 to score)
   • Add print block: "After first bonus: " + str(score)

3. Second power-up! (+300 more points) :dart:

   • Drag another += operator block
   • Connect: score += 300 again
   • Add print block: "After second bonus: " + str(score)

What you'll see:

• Starting score: 100
• After first bonus: 400
• After second bonus: 700

:bulb: :video_game: Game Developer Tip: The += operator is a shortcut! Instead of writing score = score + 300, you can just write score += 300. Cool, right?

Python Connection: In real Python code, game developers use += all the time to update player scores, health points, and inventory items!

Exercise 3: Math Operations Lab :emoji:

Your Mission: Create a calculator that shows different math operations!

Step-by-Step Instructions:

1. Set up your numbers :emoji:

   • Drag a print block: "Let num1 = 10" (or pick your favorite number!)
   • Drag a variable block: name it num1 and set to 10
   • Drag another print block: "Let num2 = 5" (or another number you like!)
   • Drag another variable block: name it num2 and set to 5

2. Show your chosen numbers

   • Drag a print block with join: "Your num1: " + str(num1)
   • Drag another print block with join: "Your num2: " + str(num2)

3. Perform the calculations! :emoji:

   • Subtraction:
     • Drag print block with: "Subtraction result: " + str(num1 - num2)
     • Use the minus (-) operator block
   • Addition:
     • Drag print block with: "Addition result: " + str(num1 + num2)
     • Use the plus (+) operator block
   • Division:
     • Drag print block with: "Division result: " + str(num1 / num2)
     • Use the divide (/) operator block

Example output:

Let num1 = 10
Let num2 = 5
Your num1: 10
Your num2: 5
Subtraction result: 5
Addition result: 15
Division result: 2.0

:bulb: :emoji: Math Lab Bonus: Try adding multiplication (num1 * num2) and see what happens! You can even try with negative numbers or decimals!

Troubleshooting: If you see "2.0" instead of "2" for division, that's normal! Python shows division results as decimals (floats) to be precise.

Checklist - Make Sure You Have: :white_check_mark:

For ALL exercises:

• Created separate projects for each exercise
• Used clear variable names
• Added proper print statements
• Tested your code works correctly

Exercise 1 - Age Calculator:

• Input asking for birth year
• Conversion to integer
• Subtraction operation
• Clear output message

Exercise 2 - Score Keeper:

• Starting score of 100
• Two score increments using +=
• Three print statements showing progress

Exercise 3 - Math Lab:

• Two number variables
• At least 3 different operations
• Clear labels for each result

:trophy: Challenge Yourself!

Finished early? Try these extras:

Age Calculator Plus:

• Calculate months old: months = age * 12
• Calculate days old: days = age * 365
• Add a birthday message if their age ends in 0!

Score Keeper Pro:

• Add a "Game Over" message when score reaches 1000
• Create a lives system that uses -= operator
• Add different point values for different achievements

Math Lab Expert:

• Add modulo (%) to find remainders (great for even/odd numbers!)
• Try exponents with ** operator (like 2**3 = 8)
• Create a temperature converter (Celsius to Fahrenheit)

Submit Your Amazing Work! :tada:

Complete all three exercises and show off your operator skills!

Submit Your Python Operators Projects Here!

Remember: You need to submit 3 project links - one for each exercise!

:bulb: :memo: Submission Tip: Name your projects clearly so you don't mix them up:

• "YourName_AgeCalculator"
• "YourName_ScoreKeeper"
• "YourName_MathLab"

You're a Python Math Wizard Now! :emoji:‍:emoji:️

Congratulations! You've learned how to:

• Make Python do calculations for you
• Use different types of operators
• Create interactive programs with math
• Format output to be user-friendly

Keep practicing with operators - they're the building blocks of every program you'll create! :rocket: