diff --git a/docs/lessons/charting/quiz-answers.md b/docs/lessons/charting/quiz-answers.md
index 684f44d3..b58dd788 100644
--- a/docs/lessons/charting/quiz-answers.md
+++ b/docs/lessons/charting/quiz-answers.md
@@ -7,7 +7,7 @@ Measure the acceleration on the micro:bit in the "x" direction.
## Directions
-Use this activity document to guide your work in the [glowing pendulum activity](/lessons/charting/acceleration)
+Use this activity document to guide your work in the [charting activity](/lessons/charting)
Answer the questions while completing the tutorial. Pay attention to the dialogues!
diff --git a/docs/lessons/night-light/challenges.md b/docs/lessons/night-light/challenges.md
index c12fbe86..aa1d09a0 100644
--- a/docs/lessons/night-light/challenges.md
+++ b/docs/lessons/night-light/challenges.md
@@ -49,5 +49,3 @@ input.onButtonPressed(Button.B, () => {
### Challenge 3
Add an event handler with `on shake` to change the LED brightness back to a `255`.
-
-* `Run main` your script to see the LEDs change brightness.
diff --git a/docs/lessons/night-light/offset-image/activity.md b/docs/lessons/night-light/offset-image/activity.md
deleted file mode 100644
index 6dab515e..00000000
--- a/docs/lessons/night-light/offset-image/activity.md
+++ /dev/null
@@ -1,94 +0,0 @@
-# offset image challenges
-
-Coding challenges for the offset image tutorial.
-
-## Before we get started
-
-Complete the following exercise. Your code should look like this:
-
-```blocks
-offset = 0
-basic.forever(() => {
- if (offset == -4) {
- basic.showString("Push button A", 150)
- }
- images.createImage(`
-. . # . .
-. . # . .
-. . # . .
-. # # # .
-. . # . .
-`).showImage(offset)
-})
-input.onButtonPressed(Button.A, () => {
- offset = offset + 1
-})
-```
-
-### Challenge 1
-
-Create a condition for if button `B` is pressed. We want the image to move to the left when button `B` is pressed.
-
-```
-offset = 0
-basic.forever(() => {
- if (offset == -4) {
- basic.showString("Push button A", 150)
- }
- images.createImage(`
-. . # . .
-. . # . .
-. . # . .
-. # # # .
-. . # . .
-`).showImage(offset)
-})
-input.onButtonPressed(Button.A, () => {
- offset = offset + 1
-})
-input.onButtonPressed(Button.B, () => {
- offset = offset - 1 // ***
-}) // ***
-```
-
-* Run the code to see if it works as expected.
-
-### Challenge 2
-
-
-
-Now we want to make sure that the button does not go off the screen to the right. Add a new line that checks to see if offset = 5 after button `A` is pressed.
-
-If `offset = 5` then prompt the user to move the image to the left by displaying the text: "Push button B".
-
-```
-offset = 0
-basic.forever(() => {
- if (offset == -4) {
- basic.showString("Push button A", 150)
- }
- if (offset == 5) {
- basic.showString("Press Button B", 150) // ***
- }
- images.createImage(`
-. . # . .
-. . # . .
-. . # . .
-. # # # .
-. . # . .
-`).showImage(offset)
-})
-input.onButtonPressed(Button.A, () => {
- offset = offset + 1
-})
-input.onButtonPressed(Button.B, () => {
- offset = offset - 1
-})
-```
-
-* Run the code to see if it works as expected.
-
-### Challenge 3
-
-Now make sure the image does not go off the left side and if it does, prompt the user to push button `A`.
-
diff --git a/docs/lessons/night-light/offset-image/quiz-answers.md b/docs/lessons/night-light/offset-image/quiz-answers.md
deleted file mode 100644
index d9b00e48..00000000
--- a/docs/lessons/night-light/offset-image/quiz-answers.md
+++ /dev/null
@@ -1,48 +0,0 @@
-# offset image quiz answers
-
-shift an image horizontally across the display with offset.
-
-This is the answer key for the [offset image quiz](/lessons/offset-image/quiz).
-
-## 1. What is a 'if, then, else statement' ?
-
-
-
-An if-then statement will run a block of code if the condition specified is true. The statement will run the "else" block of code if that condition is false.
-
-## 2. Consider the message
-
-Write the line of code that that will create the message "Push button A" (Hint: This message appears `if` the offset is equal -4 then the BBC micro:bit will state "Push Button A").
-
-
-
-```
-if (offset == -4) {
- basic.showString("Push Button A", 150)
-}
-```
-
-## 3. Consider the following image
-
-![](/static/mb/lessons/offset-image-0.png)
-
-When with this image be displayed?
-
-
-
-When the offset is NOT equal to -4 then the BBC micro:bit will show the image above.
-
-## 4. Consider the following image
-
-![](/static/mb/lessons/offset-image-1.png)
-
-Write the two lines of code that cause the `variable` offset to increase by one when button `A` is pressed.
-
-
-
-```
-input.onButtonPressed(Button.A, () => {
- offset = offset + 1
-})
-```
-
diff --git a/docs/lessons/night-light/offset-image/quiz.md b/docs/lessons/night-light/offset-image/quiz.md
deleted file mode 100644
index 690dd10c..00000000
--- a/docs/lessons/night-light/offset-image/quiz.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# offset image quiz
-
-shift an image horizontally across the display with offset.
-
-## Name
-
-## Directions
-
-Use this activity document to guide your work in the [offset image activity](/lessons/offset-image/activity).
-
-Answer the questions while completing the tutorial. Pay attention to the dialogues!
-
-## 1. What is an 'if, then, else statement' ?
-
-
-
-## 2. Write the line condition that if true, will display the message "Push button A". This message appears if the offset is equal -4 then the BBC micro:bit will state "Push Button A".
-
-
-
-
-
-## 3. Write the one line of code to show this image
-
-![](/static/mb/lessons/offset-image-0.png)
-
-
-
-
-
-## 4. Write the two lines of code that trigger the variable offset to increase by one.
-
-![](/static/mb/lessons/offset-image-1.png)
-
-
-
diff --git a/docs/lessons/seismograph/challenge.md b/docs/lessons/seismograph/challenge.md
index 5bc94e34..8c8134a0 100644
--- a/docs/lessons/seismograph/challenge.md
+++ b/docs/lessons/seismograph/challenge.md
@@ -106,7 +106,7 @@ Science: Welcome! The activity will teach you how to chart the acceleration of t
## 6.
First, notice that moving the 1st micro:bit in the simulator in any direction, you will change the acceleration value of the 2nd micro:bit. Also, notice that by moving the micro:bit simulator, there is a changing acceleration value of the second micro:bit. Second, the flat colored horizontal line will start a waving line on the 2nd micro:bit to display the value of the strength as measured in milli-gravities. Finally, notice that the LED display will fluctate based on the movement of the 2nd micro:bit simulator.
-![](/static/mb//lessons/seis_challenge02.png)
+![](/static/mb/lessons/seis_challenge02.png)
## 7.
diff --git a/docs/reference/devices/on-signal-strength-changed.md b/docs/reference/devices/on-signal-strength-changed.md
index ddc6d918..99f91a32 100644
--- a/docs/reference/devices/on-signal-strength-changed.md
+++ b/docs/reference/devices/on-signal-strength-changed.md
@@ -30,5 +30,4 @@ devices.onSignalStrengthChanged(() => {
### See Also
-[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [on notified](/reference/devices/on-notified), [signal strength](/reference/devices/signal-strength)
-
+[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [signal strength](/reference/devices/signal-strength)
\ No newline at end of file
diff --git a/docs/reference/devices/raise-alert-to.md b/docs/reference/devices/raise-alert-to.md
index c467e6af..8d82fbbe 100644
--- a/docs/reference/devices/raise-alert-to.md
+++ b/docs/reference/devices/raise-alert-to.md
@@ -59,5 +59,5 @@ devices.raiseAlertTo("ring alarm")
### See also
-[tell remote control to](/reference/devices/tell-remote-control-to), [tell camera to](/reference/devices/tell-camera-to), [on notified](/reference/devices/on-notified)
+[tell remote control to](/reference/devices/tell-remote-control-to), [tell camera to](/reference/devices/tell-camera-to)
diff --git a/docs/reference/devices/signal-strength.md b/docs/reference/devices/signal-strength.md
index 549a2fe7..bb8a9c77 100644
--- a/docs/reference/devices/signal-strength.md
+++ b/docs/reference/devices/signal-strength.md
@@ -30,5 +30,5 @@ devices.onSignalStrengthChanged(() => {
### See Also
-[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [on notified](/reference/devices/on-notified), [on signal strength changed](/reference/devices/on-signal-strength-changed)
+[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [on signal strength changed](/reference/devices/on-signal-strength-changed)
diff --git a/docs/reference/devices/tell-camera-to.md b/docs/reference/devices/tell-camera-to.md
index 4ac69338..56041304 100644
--- a/docs/reference/devices/tell-camera-to.md
+++ b/docs/reference/devices/tell-camera-to.md
@@ -76,5 +76,5 @@ devices.tellCameraTo("stop video mode")
### See Also
-[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to), [on notified](/reference/devices/on-notified)
+[tell remote control to](/reference/devices/tell-remote-control-to), [raise alert to](/reference/devices/raise-alert-to)
diff --git a/docs/reference/devices/tell-microphone-to.md b/docs/reference/devices/tell-microphone-to.md
index b4b82ddf..52879fef 100644
--- a/docs/reference/devices/tell-microphone-to.md
+++ b/docs/reference/devices/tell-microphone-to.md
@@ -45,14 +45,3 @@ To tell the connected device to stop recording audio
```
devices.tellMicrophoneTo("stop capture")
```
-
-### Other show functions
-
-* use [tell remote control to](/reference/devices/tell-remote-control-to) to control presentation of media content
-* use [tell camera to](/reference/devices/tell-camera-to) to control the photo/video recording of connected devices
-* use [raise alert to](/reference/devices/raise-alert-to) to control the microphone of connected devices
-
-### See also
-
-[Devices](/reference/devices)
-
diff --git a/docs/reference/devices/tell-remote-control-to.md b/docs/reference/devices/tell-remote-control-to.md
index 25549eeb..5062310c 100644
--- a/docs/reference/devices/tell-remote-control-to.md
+++ b/docs/reference/devices/tell-remote-control-to.md
@@ -88,5 +88,5 @@ devices.tellRemoteControlTo("volume down")
### See also
-[tell camera to](/reference/devices/tell-camera-to), [raise alert to](/reference/devices/raise-alert-to), [on notified](/reference/devices/on-notified)
+[tell camera to](/reference/devices/tell-camera-to), [raise alert to](/reference/devices/raise-alert-to)
diff --git a/docs/reference/images/create-big-image.md b/docs/reference/images/create-big-image.md
index ca4e6416..8ac17640 100644
--- a/docs/reference/images/create-big-image.md
+++ b/docs/reference/images/create-big-image.md
@@ -40,7 +40,7 @@ input.onButtonPressed(Button.B, () => {
### See also
-[Getting Started](/reference/getting-started), [image](/reference/images/image),
+[Getting Started](/getting-started), [image](/reference/images/image),
[create image](/reference/images/create-image),
[show image](/reference/images/show-image),
[scroll image](/reference/images/scroll-image), [show animation](/reference/basic/show-animation)
diff --git a/docs/reference/images/show-image.md b/docs/reference/images/show-image.md
index 3114daff..8ce2f38c 100644
--- a/docs/reference/images/show-image.md
+++ b/docs/reference/images/show-image.md
@@ -36,7 +36,7 @@ input.onButtonPressed(Button.B, () => {
### See also
-[Getting Started](/reference/getting-started), [image](/reference/images/image),
+[Getting Started](/getting-started), [image](/reference/images/image),
[create image](/reference/images/create-image),
[create big image](/reference/images/create-big-image),
[scroll image](/reference/images/scroll-image), [show animation](/reference/basic/show-animation)
diff --git a/docs/reference/images/width.md b/docs/reference/images/width.md
index ed980fe3..41d1f6e0 100644
--- a/docs/reference/images/width.md
+++ b/docs/reference/images/width.md
@@ -56,5 +56,5 @@ for (let i = 0; i < img2.width() / 5; i++) {
### See also
-[show image](/reference/images/show-image), [image](/reference/image/image), [create image](/reference/images/create-image), [scroll image](/reference/images/scroll-image), [show animation](/reference/basic/show-animation)
+[show image](/reference/images/show-image), [image](/reference/images/image), [create image](/reference/images/create-image), [scroll image](/reference/images/scroll-image), [show animation](/reference/basic/show-animation)
diff --git a/docs/reference/types/number.md b/docs/reference/types/number.md
index 970416ae..8d7cde64 100644
--- a/docs/reference/types/number.md
+++ b/docs/reference/types/number.md
@@ -57,7 +57,7 @@ let brightness = led.brightness()
### Math functions
-The [math library](/reference/math) includes math related functions.
+The [math library](/blocks/math) includes math related functions.
For example, the `absolute` function returns the returns the absolute value of input parameter `x`:
```blocks
diff --git a/libs/microbit/_locales/microbit-blocks-strings.json b/libs/microbit/_locales/microbit-blocks-strings.json
deleted file mode 100644
index 6e521a8a..00000000
--- a/libs/microbit/_locales/microbit-blocks-strings.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
- "Math.randomBoolean": "pick random true or false",
- "String.fromCharCode": "text from char code %code",
- "basic.clearScreen": "clear screen",
- "basic.forever": "forever",
- "basic.pause": "pause (ms) %pause",
- "basic.showLeds": "show leds",
- "basic.showNumber": "show|number %number",
- "basic.showString": "show|string %text",
- "control.inBackground": "run in background",
- "control.reset": "reset",
- "game.addScore": "change score by|%points",
- "game.gameOver": "game over",
- "game.score": "score",
- "game.startCountdown": "start countdown|(ms) %duration",
- "images.createBigImage": "create big image",
- "images.createImage": "create image",
- "input.acceleration": "acceleration (mg)|%NAME",
- "input.buttonIsPressed": "button|%NAME|is pressed",
- "input.compassHeading": "compass heading (°)",
- "input.lightLevel": "light level",
- "input.magneticForce": "magnetic force (µT)|%NAME",
- "input.onButtonPressed": "on button|%NAME|pressed",
- "input.onGesture": "on |%NAME",
- "input.onPinPressed": "on pin|%NAME|pressed",
- "input.pinIsPressed": "pin|%NAME|is pressed",
- "input.rotation": "rotation (°)|%NAME",
- "input.runningTime": "running time (ms)",
- "input.setAccelerometerRange": "set accelerometer|range %range",
- "input.temperature": "temperature (°C)",
- "led.brightness": "brightness",
- "led.plot": "plot|x %x|y %y",
- "led.plotBarGraph": "plot bar graph of %value |up to %high",
- "led.point": "point|x %x|y %y",
- "led.setBrightness": "set brightness %value",
- "led.stopAnimation": "stop animation",
- "led.unplot": "unplot|x %x|y %y",
- "music.beat": "%fraction|beat",
- "music.changeTempoBy": "change tempo by (bpm)|%value",
- "music.noteFrequency": "%note",
- "music.playTone": "play|tone %note=device_note|for %duration=device_beat",
- "music.rest": "rest(ms)|%duration=device_beat",
- "music.ringTone": "ring tone (Hz)|%note=device_note",
- "music.setTempo": "set tempo to (bpm)|%value",
- "music.tempo": "tempo (bpm)",
- "pins.analogReadPin": "analog read|pin %name",
- "pins.analogSetPeriod": "analog set period|pin %pin|to (µs)%micros",
- "pins.analogWritePin": "analog write|pin %name|to %value",
- "pins.digitalReadPin": "digital read|pin %name",
- "pins.digitalWritePin": "digital write|pin %name|to %value",
- "pins.i2cReadNumber": "i2c read number|at address %address|of format %format=i2c_sizeof",
- "pins.i2cWriteNumber": "i2c write number|at address %address|with value %value|of format %format=i2c_sizeof",
- "pins.map": "map %value|from low %fromLow|from high %fromHigh|to low %toLow|to high %toHigh",
- "pins.onPulsed": "on|pin %pin|pulsed %pulse",
- "pins.pulseDuration": "pulse duration (µs)",
- "pins.servoSetPulse": "servo set pulse|pin %value|to (µs) %micros",
- "pins.servoWritePin": "servo write|pin %name|to %value",
- "pins.setPull": "set pull|pin %pin|to %pull",
- "serial.readLine": "serial read line",
- "serial.redirect": "serial redirect to|TX %tx|RX %rx|at baud rate %rate",
- "serial.writeLine": "serial|write line %text",
- "serial.writeNumber": "serial|write number %value",
- "serial.writeString": "serial write string %text",
- "serial.writeValue": "serial|write value %name|= %value"
-}
\ No newline at end of file