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docs/reference/js/lessons/love-meter/activity.md

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+# love meter activity
+
+create a love meter with the BBC micro:bit #docs
+
+### ~avatar avatar
+
+### @video td/videos/love-meter-0
+
+Welcome! This tutorial will help you create a love meter with the BBC micro:bit. Let's get started!
+
+### ~
+
+To create a new script, go to the [Create Code](/microbit/create-code) page and tap *New Project* under **Touch Develop**.
+
+Begin by registering an event with `input->on pin pressed(PO)` to know when someone is holding pin ``P0`` and pin ``Gnd``.
+
+```
+input.onPinPressed("P0", () => {
+})
+```
+
+We are going to create a meter that displays a random number from 0 to 10. We use ``11`` as `math->random(n)` returns a number between ``0`` and ``n-1``.
+
+```
+input.onPinPressed("P0", () => {
+    let x = Math.random(11)
+})
+```
+
+Finally, let's show that number on the micro:bit.
+
+```
+input.onPinPressed("P0", () => {
+    let x_ = Math.random(11)
+    basic.showNumber(x_, 150)
+})
+```
+
+### ~avatar avatar
+
+Excellent, you're ready to continue with the [challenges](/microbit/lessons/love-meter/challenges)!
+
+### ~
+

docs/reference/js/lessons/love-meter/challenges.md

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+# love meter challenges
+
+create a love meter with the BBC micro:bit  #docs
+
+## Before we get started
+
+Complete the following guided tutorial:
+
+* [tutorial](/microbit/lessons/love-meter/tutorial)
+
+At the end of the tutorial, click `keep editing`. Your code should look like this:
+
+```
+input.onPinPressed("P0", () => {
+    let x = Math.random(11)
+    basic.showNumber(x, 150)
+})
+```
+
+### Challenge 1
+
+Add a pause of 3000 milliseconds (3 seconds) after showing the number so that the number won't immediately disappear in the next challenge.
+
+```
+input.onPinPressed("P0", () => {
+    let x1 = Math.random(11)
+    basic.showNumber(x1, 150)
+    basic.pause(3000) // ***
+})
+```
+
+### Challenge 2
+
+If the rating **x** is between ``0`` and ``3`` (strictly less than ``4``), display the text "HORRIBLE!".
+
+```
+input.onPinPressed("P0", () => {
+    let x2 = Math.random(11)
+    basic.showNumber(x2, 150)
+    basic.pause(3000)
+    if (x2 < 4) {
+        basic.showString("HORRIBLE!", 150) // ***
+    }
+})
+```
+
+### Challenge 3
+
+### @video td/videos/love-meter-3
+
+If the rating is between 4 and 7, display the text "MEDIOCRE!" **else** display the text "MATCHED!"
+
+```
+input.onPinPressed("P0", () => {
+    let x3 = Math.random(11)
+    basic.showNumber(x3, 150)
+    basic.pause(3000)
+    if (x3 < 4) {
+        basic.showString("HORRIBLE!", 150) // ***
+    } else if (x3 < 8) {
+        basic.showString("MEDIOCRE!", 150) // ***
+    }
+    else {
+        basic.showString("MATCHED!", 150) // ***
+    }
+})
+```
+
+### Challenge 4
+
+Use `basic->plot image` or `basic->show animation` to display images and animations instead of text for each case.
+

docs/reference/js/lessons/love-meter/quiz-answers.md

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+# love meter quiz answers
+
+The answers to the love meter quiz. #LED #screen  #variables #docs
+
+This is the answer key for the [love meter quiz](/microbit/lessons/love-meter/quiz).
+
+## 1. What does on pin pressed ("P0") do?
+
+<br/>
+
+It's a method that runs code when the user holds the GND pin with a finger of one hand and presses pin P0, completing a circuit.
+
+## 2. Create a condition for on pin pressed ("P1").
+
+```
+input.onPinPressed("P1", () => {
+})
+```
+
+## 3. What does this line of code generate?
+
+```
+let x = Math.random(10)
+```
+
+<br/>
+
+It generates a random number between 0 and 9 then stores that number in a variable.
+
+## 4. Why do you have to add 1 to variable x?
+
+```
+x = x + 1
+```
+
+<br/>
+
+You have to add 1 if you want to generate a random number between 1 and 10 .
+
+## 5. Why do you have to hold ground (GND) to make this work on the BBC micro:bit?
+
+<br/>
+
+You have told GND to complete the circuit.
+

docs/reference/js/lessons/love-meter/quiz.md

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+# love meter quiz 
+
+Learn how to make a love meter that you can try with someone. #LED #screen  #variables #docs
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [love meter tutorial](/microbit/lessons/love-meter/tutorial).
+
+Answer the questions below while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Describe what "input -> on pin pressed (P0)" does?
+
+<br/>
+
+## 2. Create a condition for on pin pressed ("P1").
+
+<br/>
+
+## 3. Describe what this line of code does?
+
+```
+let x = Math.random(10)
+```
+
+<br/>
+
+## 4. Describe what adding 1 to variable x does?
+
+```
+let x_ = Math.random(10)
+x = x + 1
+```
+
+<br/>
+
+## 5. Describe why you must hold ground (GND) before pressing (P0) to run a program using "input -> on pin pressed (P0)" on the BBC micro:bit
+
+<br/>
+