diff --git a/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-drum-machine/index.md b/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-drum-machine/index.md
index f49615a29d..ab81c0c135 100644
--- a/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-drum-machine/index.md
+++ b/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-drum-machine/index.md
@@ -3,8 +3,7 @@ title: Build a Drum Machine
---
## Build a Drum Machine
-This is a stub. Help our community expand it.
-
-This quick style guide will help ensure your pull request gets accepted.
-
-
+The project consists of three distinct parts:
+1. Identifying the components needed to complete the task, what components are there? Can some components be used more than once? E.g. the buttons, are they the same only with different onClick events and ids?
+2. What component should be responsible for keeping state, and how should changes in state be passed on to other components?
+3. Knowing that the corresponding audio element should be in your clickable area/button which means that the audio element is a child of the corresponding button.
diff --git a/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-markdown-previewer/index.md b/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-markdown-previewer/index.md
index 06eea22e15..4cf53a9cd6 100644
--- a/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-markdown-previewer/index.md
+++ b/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-markdown-previewer/index.md
@@ -3,8 +3,11 @@ title: Build a Markdown Previewer
---
## Build a Markdown Previewer
-This is a stub. Help our community expand it.
-
-This quick style guide will help ensure your pull request gets accepted.
-
-
+1. Add an onChangeListener on the textarea
+2. On every onChange event save the textarea's value into the state
+3. Create the preview div, pass the textarea's value into the marked library and set the preview's html to the corresponding returned marked html output. With React you can do it using the dangerouslySetInnerHTML attribute:
+```
+ dangerouslySetInnerHTML={{
+ __html: ...
+ }}
+```
diff --git a/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-pomodoro-clock/index.md b/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-pomodoro-clock/index.md
index 2bff8ea88f..6b1162405e 100644
--- a/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-pomodoro-clock/index.md
+++ b/client/src/guide/english/certifications/front-end-libraries/front-end-libraries-projects/build-a-pomodoro-clock/index.md
@@ -3,8 +3,8 @@ title: Build a Pomodoro Clock
---
## Build a Pomodoro Clock
-This is a stub. Help our community expand it.
-
-This quick style guide will help ensure your pull request gets accepted.
-
-
+The project consists of three distinct parts:
+1. Identifying the components needed to complete the task, what components are there? Can some components be used more than once? E.g. the buttons, are they the same only with different onClick events and ids?
+2. What component should be responsible for keeping state, and how should changes in state be passed on to other components?
+3. It's recommended to set all your time values in your state in seconds for better calculating and only converting them into minutes when displaying them on the screen.
+For converting the seconds into minutes first you could use the Math.floor() function to get the minutes without the seconds e.g. 150s / 60 = 2 minutes and then use the modulo(%) operator to get the remaining seconds e.g. 150s % 60 = 30s. Now you can combine them together to get the time in minutes with seconds => 150s is 2:30 minutes