Lesson Modifications

Attention, teachers! If you are teaching virtually or in a socially-distanced classroom, please read the full lesson plan below, then click here to access the modifications.

Warm Up (5 mins)

Quick Warm Up

Activity (35 mins)

Practice Time

Group: It is recommended that students work in pairs for this lesson and a number of the activities feature discussion prompts. Consider using pair programming, having drivers and navigators switch every 3 minutes, not every level.

Do This: Direct students to Code Studio, Lesson 3 Level 2. Then briefly remind students about debugging skills that they will be using in today's activity.

Levels 2-4: These levels only use the console.log() command which prints commands in the debug console. Here are a few things to keep an eye out for

• Levels 2-3 ask students to write Boolean expressions using comparison operators. Students may need to quickly review the comparison operators <, >, <=, >=, ==, !=
• Level 4 asks students to write Boolean expressions with logical operators &&, ||, !

Levels 5-9: These levels practice if-statements while working with a star color-changing app.

• Levels 5-6 involve setting up an if-statement that becomes an if-else statement.
• In Level 7 students follow a pattern to create a lengthy if-else-if statement.
• For Level 8, make sure students slow down the running of the code to understand what's happening. It's suggested that students use the slider to slow down the code.
• Level 9 demonstrates that Boolean expressions can be written as conditional statements, and vice versa

Levels 10-11: The levels return to the "Can I Adopt a Cat?" flowchart from the Conditionals Explore activity. Students will use the flowchart to work out the logic of the if-statements in a their program.

• A new block appears in these levels: getNumber() . This is different than getText(). getNumber() gets a number from a user input that can be used mathematically.
• Level 11 can be completed many different ways. There are different combinations of Boolean expressions using && and ||. Students should regularly test their apps to see if their Boolean expressions are working properly.

Extension Opportunities:

• Level 4: Students can add more variables and create complex Boolean expressions. One challenge might be to assign a String to a variable and compare that string to another.
• Level 10: There are multiple solutions. If students build their if-statement using only && encourage them to figure out how to build it using only ||. They may need to switch the content of the if and else branches.
• Level 11: Create another input (i.e. How many cats do you already own?). Students use this information to craft more complex if-statements.

Wrap Up (5 mins)

Prompt: What aspects of working with conditionals do you feel like clicked today? What do you still feel like you have trouble with?

Assessment: Check For Understanding: AP Practice

Check For Understanding Question(s) and solutions can be found in each lesson on Code Studio. These questions can be used for an exit ticket.

Question: What will be displayed after this code segment is run?

Question: The program below asks a user to type in a number and then will output a message. What number will a user need to input for the message "COLD" to be displayed?

number <- INPUT()

IF (number >= 10)
{
  IF (number <= 20)
  {
    DISPLAY("MEDIUM")
  }
  ELSE
  {
    DISPLAY("HOT")
  }
}
ELSE
{
  DISPLAY("COLD")
}