Week 3 Lesson 2
Today we will learn how an if-then-else uses conditions to cause actions.
55 minutes
1 - Warm Up (5 min)
2 - We Do (10 min)
3- Turn & Talk (5 min)
4 - UCSD Does (5 min)
5- We Do (15 min)
6 - You Do (20 min)
7 - Reflect & Share (5 min)
WARM UP
Pairs, Groups,
Whole Class
1
(5 min)
What happens when you brush your teeth and turn the faucet off?
If _________ then, I'll help conserve water!
Else, _________.
What happens when you turn the lights off when you leave a room?
If _________ then, I'll help conserve electricity!
Else, __________.
WE DO
2
(5 min)
As a class, let's use TIPP and SEE to learn how the project works.
Click on the Scratch project.
Locate the Title and read it.
Locate the Instructions and read them.
Locate the Purpose and read it.
Play the project.
Locate See Inside and click on it.
Identify all Sprites and Events.
Explore the code, but don't make changes quite yet!
Turn & TALK
3
(5 min)
In the Scratch project, the light bulbs are supposed to light up when the wind reaches a certain speed. Part of the project is not working correctly. What is the problem and how do you think you can fix it?
The problem is _________.
I think we need to program _________.
Some of the light bulbs turn on at different times. What conditions make a light bulb light up?
If _________ then _________.
Else, the light bulb will stay off.
UCSD DOES
4
(5 min)
you do
6
(15 min)
Open the Week 3 Student Hyperdoc provided by your teacher.
Choose a starter project under the "You Do" section.
Follow the instructions below each project.
DO MORE
Make the wind speed greater than 60 and add more light bulbs!
Make sure you have shared your project with your teacher using your hyperdoc.
File -> Save to your computer to save your program for later.
(How To)
Reflect & Share
7
(5 min)
Today in Scratch, we used if-then-else blocks to make the light bulbs light up depending on the wind speed conditions.
Partner A: Share your project and talk about your process.
Today I _______. Let me show you...
Partner B: Respond to your partner with feedback.
I can tell you worked hard on ________ because ________.
I think ________ could be even better if you ________.
Switch roles!