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@MarleenGilsing
MarleenGilsing committed Nov 7, 2024
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104 changes: 100 additions & 4 deletions content/slides/en.yaml
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A variable is a word that can be used to store information.
For example: a name, age or favorite sports team.
notes: |-
Students might have a hard time understanding the concept of a variable. We found that giving the students multiple examples of variables will help them grasp the concept better.
2:
header: Variables
text: To make or 'set' a variable we use the `{is}` command
text: To make or 'set' a variable we use the `{is}` command. The name of the variable comes before the `{is}` and the value of the variable behind it.
code: |-
name {is} Hedy
age {is} 15
{print} name is age years old
notes: |-
Show the students how the variables work. Point out that the names of the variables in the last line are replaced with the values of the variable.
Ask students if they could think of another variable (length, shoe size, haircolor etc.) and add your own examples to the code.
The students can now make the Rock, paper, scissors adventure.
3:
header: Interactive
text: |-
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code: |-
name {is} {ask} What is your name?
{print} Hello name
notes: |-
Now our programs can get really interactive. The user can give input that is used in the program.
Ask the students to come up with their own examples.
4:
header: Multiple variables
text: Now that we use variables, we can use multiple variables instead of just one `{echo}` command.
Expand All @@ -261,13 +270,19 @@ levels:
{print} Hello name
age {is} {ask} How old are you?
{print} name is age years old.
notes: |-
Point out that the `{echo}` command is no longer needed, so it will no longer work in Hedy.
The students can now make Rock, Paper Scissors part 2 and Haunted House.
5:
header: Sleep
text: You can also use the `{sleep}` command to pause the code for a while.
code: |-
{print} My favorite colour is...
{sleep} 2
{print} green!
notes: |-
Show the students the sleep command. Ask them what they think the 2 stand for.
Change the 2 into another number to show that they can decide how long the code will be paused.
6:
header: Sleep 5
text: |-
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{print} My favorite colour is...
{sleep} pause
{print} green!
notes: |-
Show the code and if you want you can even change the 10 to an {ask} command.
The students can now work on these adventures: Parrot, Story, Music and Restaurant.
7:
header: Drawing with variables
text: |-
In level 1 you've learned how to use {forward} 100.
Now you can use a variable too.
code: |-
distance {is} {ask} Hwo far should i go?
{forward} distance
notes: |-
Show the students that they can use variables with the drawing turtle now too!
Run the code multiple times with different answers, to show the use of variables.
8:
header: Drawing with degrees
text: |-
Before you could {turn} {left} or {turn} {right}, now we can use degrees!
code: |-
{forward} 100
{turn} 45
{forward} 100
notes: |-
Show the students the code. In the next slide we'll show multiple angles.
9:
header: Degrees
text: |-
A full circle is 360 degrees.
Half a circle is 180 degrees.
A right turn is 90 degrees.
A left turn is 270 degrees.
You can fill in any number you want.
code: |-
{turn} 90
{forward} 100
notes: |-
Make sure the students understand degrees. They may have learned this already in maths, but it might be completely new to them.
If the students have never heard of degrees before, it might be nice to show them a degree wheel. You could even print one out for them.
Use the example code on the slides to show the students multiple angles.
10:
header: Degrees and variables
text: |-
Degrees can be variables too!
code: |-
degrees {is} {ask} How many degrees should the turtle turn?
{turn} degrees
{forward} 100
notes: |-
Show the students that you can make the amount of degrees a variable as well.
11:
header: Drawing with color
text: |-
You can now use `{color}` to set a color when drawing.
code: |-
{color} green
{forward} 100
notes: |-
Show the students that they can use multiple colors. They can use the white color to make 'invisible' lines (as the background is white as well).
12:
header: Debugging
text: Debugging a code means getting rid of mistakes in the code. Let's debug this code together. Click the ladybug button to start the debugger.
code: |-
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{print} Here you go! A filling donut with toping!
{ask} Have a nice day!
debug: 'True'
8:
header: Let the programming fun begin!
text: Enjoy the adventures in level 2!
notes: |-
The students can now finish all the adventures of this level.
13:
header: Let's review!
text: What did you learn today?
notes: |-
Ask the students to list what they've learned today.
14:
header: Let's review!
text: |-
Which adventure did you like best? Why?
Which adventure did you like least? Why?
notes: |-
Ask the students for their opinion.
15:
header: Show and tell!
text: Would anyone like to show the class a program they've made?
notes: |-
Let some students show their work to the class.
16:
header: Sneak peek into the next level...
text: |-
In the next level you'll learn how to make a list and let the computer pick a random item of that list!
3:
1:
header: Welcome to level 3
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